Univ.-Prof. Dr. Wolfgang Lechner

Professor

Room: 2N04 ITP
Phone: +43 512 507 52232
Email: Wolfgang.Lechner[at]uibk.ac.at

Research group: Quantum Optimization

More Information

  • FLD Research Documentation

    Publications 2024

    Contributions to Books / Journals

    Journal Article (Original Paper)
    • Basilewitsch, D.; Dlaska, C.; Lechner, W. (2024): Comparing planar quantum computing platforms at the quantum speed limit.
      In: Physical Review Research 6/2, No. 023026. (DOI) (Web link)

    • Ginzel, F.; Fellner, M.; Ertler, Ch.; Schreiber, L.; Bluhm, H.; Lechner, W. (2024): Scalable Parity Architecture With a Shuttling-Based Spin Qubit Processor.
      In: Physical Review B (Condensed Matter) 110, No. 075302. (DOI) (Web link)

    Other Publications

    Electronic Publication (Preprint)
    • Dominguez, F.; Fellner, M.; Klaver, B.; Rombouts, S.; Ertler, Ch.; Lechner, W. (2024): Runtime Reduction in Linear Quantum Charge-Coupled Devices using the Parity Flow Formalism. (Web link)

    • Dreier, F.; Lechner, W. (2024): On the uniqueness of compiling graphs under the parity transformation. (Web link)

    • Klaver, B.; Rombouts, S.; Fellner, M.; Messinger, A.; Ender, K.; Ludwig, K.; Lechner, W. (2024): SWAP-less Implementation of Quantum Algorithms. (DOI) (Web link)

    • Lanthaler, M.; Ender, K.; Dlaska, C.; Lechner, W. (2024): Quantum optimization with globally driven neutral atom arrays. (DOI) (Web link)

    • Messinger, A.; Torggler, V.; Klaver, B.; Fellner, M.; Lechner, W. (2024): Fault-tolerant quantum computing with the parity code and noise-biased qubits. (DOI) (Web link)

    • Weidinger, A.; Mbeng, G.; Fellner, M.; Khachatryan, D.; Lechner, W. (2024): Performance of Parity QAOA for the Signed Max-Cut Problem. (DOI) (Web link)



    Lectures 2024

    Presentations at Conferences, Symposia, etc.

    Conference Lecture (Invited Lecture)
    • Lecturer(s): Lechner, W.: ParityOS - The operating system of future quantum computers.
      Quantum Software Engineering MeetUp 2024 co-located mit SE'2024, LInz, 2024-02-26. (Web link)

    Poster Presentation
    • Lecturer(s): Goeller, Ch. Co-author(s): Messinger, A.; Fellner, M.; Klaver, B.; Torggler, V.; Lechner, W.: Fault-tolerant Quantum Computing with the Parity Code: Discrete and Bosonic.
      IEEE Quantum Week 2024, Montreal, 2024-09-15. (Web link)

    • Lecturer(s): Klaver, B. Co-author(s): Rombouts, S.; Fellner, M.; Messinger, A.; Ender, K.; Ludwig, K.; Lechner, W.: Parity Codes in Space and Time.
      IEEE Quantum Week 2024, Montreal, 2024-09-15. (Web link)



    Publications 2023

    Contributions to Books / Journals

    Journal Article (Original Paper)
    • Drieb-Schön, M.; Ender, K.; Javanmard, Y.; Lechner, W. (2023): Parity Quantum Optimization: Encoding Constraints.
      In: Quantum. The Open Journal for Quantum Science 7, Nr. 951. (DOI) (Web link)

    • Ender, K.; ter Hoeven, R.; Niehoff, B.; Drieb-Schön, M.; Lechner, W. (2023): Parity Quantum Optimization: Compiler.
      In: Quantum. The Open Journal for Quantum Science 7, Nr. 950. (DOI) (Web link)

    • Fellner, M.; Ender, K.; ter Hoeven, R.; Lechner, W. (2023): Parity Quantum Optimization: Benchmarks.
      In: Quantum. The Open Journal for Quantum Science 7, Nr. 952. (DOI) (Web link)

    • Khazali, M.; Lechner, W. (2023): Scalable quantum processors empowered by the Fermi scattering of Rydberg electrons.
      In: Communications Physics 6, Nr. 57. (DOI) (Web link)

    • Lanthaler, M.; Dlaska, C.; Ender, K.; Lechner, W. (2023): Rydberg blockade based parity quantum optimization.
      In: Physical Review Letters 130/22, Nr. 220601. (DOI) (Web link)

    • Lanthaler, M.; Niehoff, B.; Lechner, W. (2023): Scalable set of reversible parity gates for integer factorization.
      In: Communications Physics 6/73, Nr. 73. (DOI) (Web link)

    • Weidinger, A.; Mbeng, G.; Lechner, W. (2023): Error Mitigation for Quantum Approximate Optimization.
      In: Physical Review A (Atomic, Molecular and Optical Physics) 108/3, Nr. 032408. (DOI) (Web link)

    Journal Article (Review)
    • Dominguez, F.; Unger, J.; Traube, M.; Mant, B.; Ertler, C.; Lechner, W. (2023): Encoding-Independent Optimization Problem Formulation for Quantum Computing.
      In: Frontiers in Quantum Science and Technology 2023/2, No. 1229471. (DOI) (Web link)

    Proceedings Article (Full Paper)
    • Messinger, A.; Fellner, M.; Lechner, W. (2023): Constant Depth Code Deformations in the Parity Architecture.
      In: Muller, H.; Alexev, Y.; Delgado, A.; Byrd, G.: 2023 IEEE International Conference on Quantum Computing and Engineering (QCE). Vol 1 of 3. 17-22 Sept, Bellevue, WA, USA. Los Alamitos, California: Conference Publishing Services (CPS) - IEEE Computer Society., ISBN 979-8-3503-4324-3, pp. 120 - 130. (DOI) (Web link)

    Other Publications

    Electronic Publication (Preprint)
    • ter Hoeven, R.; Messinger, A.; Lechner, W. (2023): Flexible constraint compilation in the parity architecture. (DOI) (Web link)



    Lectures 2023

    Presentations at Conferences, Symposia, etc.

    Conference Lecture (Invited Lecture)
    • Lecturer(s): Lechner, W.: Encoding constraint optimization problems with the parity architecture.
      INQA 2023 - International Network on Quantum Annealing Conference, Innsbruck, 2023-11-07. (Web link)

    Conference Lecture (Upon Registration)
    • Lecturer(s): Dlaska, C. Co-author(s): Lanthaler, M.; Ender, K.; Lechner, W.: Rydberg-blockade-based parity quantum optimization.
      APS March Meeting 2023, Las Vegas, 2023-03-09. (Web link)

    • Lecturer(s): Lanthaler, M. Co-author(s): Dlaska, C.; Ender, K.; Lechner, W.: Rydberg-blockade-based parity quantum optimization.
      SFB BeyondC Autumn Workshop 2023, Innsbruck, 2023-09-12. (Web link)

    • Lecturer(s): Lechner, W.: Universal Parity Quantum Computing.
      APS March Meeting 2023, Las Vegas, 2023-03-10. (Web link)

    • Lecturer(s): Messinger, A. Co-author(s): Fellner, M.; Lechner, W.: Constant Depth Code Deformations in the Parity Architecture.
      IEEE International Conference on Quantum Computing and Engineering, Washington, 2023-09-20. (Web link)

    Lecture at Summer-/Winterschool
    • Lecturer(s): Lechner, W.: Quantum Computation Beyond Classical Capabilities.
      Summer school and Workshop on New trends in quantum simulation and computation, Nottingham, 2023-07-27. (Web link)

    Poster Presentation
    • Lecturer(s): Fellner, M. Co-author(s): Messiner, A.; Ender, K.; Lechner, W.: Universal Parity Quantum Computing.
      26th Conference on Quantum Information Processing, Ghent, 2023-02-06. (Web link)

    • Lecturer(s): Messinger, A. Co-author(s): Ender, K.; Fellner, M.; Dlaska, C.; Lechner, W.: Modular Parity Quantum Approximate Optimization.
      26th Conference on Quantum Information Processing, Ghent, 2023-02-06. (Web link)

    • Lecturer(s): Messinger, A. Co-author(s): Fellner, M.; Lechner, W.: Constant Depth Code Deformations in the Parity Architecture.
      SFB BeyondC Kickoff Meeting 2.0, Wien, 2023-03-27. (Web link)

    • Lecturer(s): Weidinger, A. Co-author(s): Mbeng, G.; Lechner, W.: Error mitigation for quantum approximate optimization.
      SFB BeyondC Autumn Workshop 2023, Innsbruck, 2023-09-11. (Web link)



    Publications 2022

    Contributions to Books / Journals

    Journal Article (Original Paper)
    • Aumann, P.; Menke, T.; Oliver, W.; Lechner, W. (2022): CircuitQ: An open-source toolbox for superconducting circuits.
      In: New Journal of Physics 24, No. 093012. (DOI) (Web link)

    • Aumann, Philipp; Prilmüller, Maximilian; Kappe, Florian; Ostermann, Laurin; Dalacu, Dan; Poole, Philip; Ritsch, Helmut; Lechner, Wolfgang; Weihs, Gregor (2022): Demonstration and modelling of time-bin entangled photons from a quantum dot in a nanowire.
      In: AIP Advances 12/5, No. 055115. (DOI) (Web link)

    • Dlaska, C.; Ender, K.; Mbeng, G.; Kruckenhauser, A.; Lechner, W.; van Bijnen, R. (2022): Quantum optimization via four-body Rydberg gates.
      In: Physical Review Letters 128/12, No. 120503. (DOI) (Web link)

    • Ender, K.; Messinger, A.; Fellner, M.; Dlaska, C.; Lechner, W. (2022): Modular Parity Quantum Approximate Optimization.
      In: PRX Quantum 3/3, No. 030304. (DOI) (Web link)

    • Fellner, M.; Messinger, A.; Ender, K.; Lechner, W. (2022): Applications of Universal Parity Quantum Computation.
      In: Physical Review A (Atomic, Molecular and Optical Physics) 106/4, No. 042442. (DOI) (Web link)

    • Fellner, M.; Messinger, A.; Ender, K.; Lechner, W. (2022): Universal Parity Quantum Computing.
      In: Physical Review Letters 129/18, No. 180503. (DOI) (Web link)

    • Hartmann, A.; Mbeng, G.; Lechner, W. (2022): Polynomial scaling enhancement in ground-state preparation of Ising spin models via counter-diabatic driving.
      In: Physical Review A (Atomic, Molecular and Optical Physics) 105/2, No. 022614. (DOI) (Web link)

    Book Chapter (Original Paper)
    • Hauser, M.; Lechner, W. (2022): Europas Rolle im weltweiten Quantum Computing Rennen.
      In: Wilms, A.; Neukart, F.: Chancen und Risiken von Quantentechnologien. Praxis der zweiten Quantenrevolution für Entscheider in Wirtschaft und Politik. Wiesbaden: Springer Fachmedien Wiesbaden GmbH., ISBN 978-3-658-37533-1, pp. 207 - 216. (DOI) (Web link)

    Other Publications

    Electronic Publication (Preprint)
    • Mbeng, G.; Lechner, W. (2022): Rotated ansatz for approximate counterdiabatic driving. (Web link)

    • Unger, J.; Messinger, A.; Niehoff, B.; Fellner, M.; Lechner, W. (2022): Low-depth Circuit Implementation of Parity Constraints for Quantum Optimization. (Web link)



    Lectures 2022

    Presentations at Conferences, Symposia, etc.

    Conference Lecture (Invited Lecture)
    • Lecturer(s): Lechner, W.: European answer for the world-wide Quantumcomputing race.
      FUTURAS IN RES Conference: The Quantum Breakthrough, Berlin, 2022-09-28. (Web link)

    • Lecturer(s): Lechner, W.: Parity-based quantum computing.
      WINQ, Workshops on Quantum Information and Quantum Processing and Complex Dynamical Networks, Stockholm, 2022-06-09. (Web link)

    • Lecturer(s): Lechner, W.: Parity Quantum Computing Architecture.
      19th IEEE International Conference on Software Architecture (ICSA 2022), Honolulu (online), 2022-03-12. (Web link)

    Lecture at Summer-/Winterschool
    • Lecturer(s): Lechner, W.: Quantum Computing on near term devices.
      European Spring School on Quantum Science and Technology, Strassburg, 2022-04-14. (Web link)

    • Lecturer(s): Lechner, W.: Quantum Computing on Near Term Devices.
      European Spring School on Quantum Science and Technology, Strassburg, 2022-04-13. (Web link)

    Poster Presentation
    • Lecturer(s): Fellner, M. Co-author(s): Messinger, A.; Ender, K.; Lechner, W.: Universal Parity Quantum Computing.
      SFB BeyondC Conference 2022 - Frontiers of Quantum Information Science, Wien, 2022-09-05. (Web link)

    • Lecturer(s): Lanthaler, M. Co-author(s): Niehoff, B.; Lechner, W.: Scalable Set of Reversible Parity Gates for Integer Factorization.
      SFB BeyondC Conference 2022 - Frontiers of Quantum Information Science, Wien, 2022-09-07. (Web link)



    Publications 2021

    Contributions to Books / Journals

    Journal Article (Original Paper)
    • Könz, M.; Lechner, W.; Katzgraber, G.; Troyer, M. (2021): Embedding Overhead Scaling of Optimization Problems in Quantum Annealing.
      In: PRX Quantum 2/4, No. 040322. (DOI) (Web link)

    • Lanthaler, M.; Lechner, W. (2021): Minimal Constraints in the Parity Formulation of Optimization Problems.
      In: New Journal of Physics 23/8, No. 083039. (DOI) (Web link)

    • Prielinger, L.; Hartmann, A.; Yamashiro, Y.; Nishimura, K.; Lechner, W.; Nishimori, H. (2021): Two-parameter counter-diabatic driving in quantum annealing.
      In: Physical Review Research 3/1, Nr. 013227. (DOI) (Web link)



    Lectures 2021

    Presentations at Conferences, Symposia, etc.

    Conference Lecture (Invited Lecture)
    • Lecturer(s): Lechner, W.: Improving adiabatic quantum computing with non-adiabatic methods.
      The International Symposium on Quantum Science, Technology and Innovation - Quantum Innovation 2021, Tokyo (Online), 2021-12-09. (Web link)

    • Lecturer(s): Lechner, W.: Optimization as an application for Quantum Computers.
      5th Quantum Technology Conference of the European Space Agency, Noordwijk, online, 2021-11-25. (Web link)

    • Lecturer(s): Lechner, W.: Technologie und Anwendungen der Quantum-Computer im Verkehrssektor.
      Quantum-Computing in Aviation, Logistik und Mobilität, Frankfurt (Online), 2021-11-08. (Web link)

    • Lecturer(s): Lechner, W.: Parity Quantum Computing.
      Gemeinsame Jahrestagung der SPS und ÖPG 2021 (Swiss and Austrian Physical Societies), Innsbruck, 2021-09-02. (Web link)

    • Lecturer(s): Lechner, W.: Solving Optimization Problems on Near Term Quantum Devices.
      Gemeinsame Jahrestagung der SPS und ÖPG 2021 (Swiss and Austrian Physical Societies), Innsbruck, 2021-09-01. (Web link)

    • Lecturer(s): Lechner, W.: Parity Quantum Computing - Encoding Real-World Problems in Near Term Quantum Devices.
      Workshop: Quantum Computing and Mathematical Optimization, Birkenwerder (online), 2021-03-18. (Web link)

    Poster Presentation
    • Lecturer(s): Schön, M. Co-author(s): Javanmard, Y.; Ender, K.; Lechner, W.: Parity Quantum Optimization: Encoding Constraints.
      IMPRS-MPHQ-BeyondC Summer School 2021, online, 2021-07-13. (Web link)

    Guest Lectures

    Guest Lecture
    • Lecturer(s): Lechner, W.: Parity Quantum Computing.
      Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen - Nürnberg, 2021-07-07. (Web link)

    Individual Lectures (professional development / knowledge transfer)

    Lecture (Knowledge Transfer / Further Education)
    • Lecturer(s): Lechner, W.: Parity Quantum Computing.
      PlanQK, Berlin, 2021-12-07. (Web link)



    Publications 2020

    Contributions to Books / Journals

    Journal Article (Original Paper)
    • Hartmann, A.; Mukherjee, V.; Mbeng, G.; Niedenzu, W.; Lechner, W. (2020): Multi-spin counter-diabatic driving in many-body quantum Otto refrigerators.
      In: Quantum. The Open Journal for Quantum Science 4, No. 377. (DOI) (Web link)

    • Hartmann, A.; Mukherjee, V.; Niedenzu, W.; Lechner, W. (2020): Many-body quantum heat engines with shortcuts to adiabaticity.
      In: Physical Review Research 2/2, No. 023145. (DOI) (Web link)

    • Miyahara, H.; Aihara, K.; Lechner, W. (2020): Quantum expectation-maximization algorithm.
      In: Physical Review A (Atomic, Molecular and Optical Physics) 101/1, No. 012326. (DOI) (Web link)

    Journal Article (Review)
    • Hauke, P.; Katzgraber, H. G.; Lechner, W.; Nishimori, H.; Oliver, W. D. (2020): Perspectives of quantum annealing: Methods and implementations.
      In: Reports on progress in physics 83, No. 054401. (DOI) (Web link)



    Lectures 2020

    Presentations at Conferences, Symposia, etc.

    Conference Lecture (Invited Lecture)
    • Lecturer(s): Lechner, W.: Parity Quantum Computing.
      Conference on Quantum Annealing/Adiabatic Quantum Computation, Trieste, online, 2020-10-06. (Web link)

    • Lecturer(s): Lechner, W.: Quantum Optimization with Parallelizable Gates.
      The 2nd International Workshop on Quantum Resource Estimation, QRE2020, Valencia, 2020-05-30. (Web link)

    • Lecturer(s): Lechner, W.: Recent developments in the LHZ Architektur.
      Meeting on Quantum Annealing of the LHZ Architektur and Related Topics, Tokio, 2020-02-07. (Web link)

    Lecture at Project Meeting / Research Cooperation Meeting
    • Lecturer(s): Lechner, W.: QAOA with the LHZ Architektur.
      DARPA ONISQ Kick-off meeting, Arlington, 2020-03-08. (Web link)

    Guest Lectures

    Guest Lecture
    • Lecturer(s): Lechner, W.: Recent Developments in the LHZ Architecture.
      Barcelona Supercomputing Center-CNS (QUANTIC), Barcelona, 2020-07-16. (Web link)



    Publications 2019

    Contributions to Books / Journals

    Journal Article (Original Paper)
    • Dlaska, C.; Sieberer, L. M.; Lechner, W. (2019): Designing ground states of Hopfield networks for quantum state preparation.
      In: Physical Review A (Atomic, Molecular and Optical Physics) 99/3, No. 032342. (DOI) (Web link)

    • Hartmann, A.; Lechner, W. (2019): Quantum Phase Transition with Inhomogeneous Driving in the Lechner_Hauke_Zoller model.
      In: Physical Review A (Atomic, Molecular and Optical Physics) 100/3, No. 032110. (DOI) (Web link)

    • Hartmann, A.; Lechner, W. (2019): Rapid counter-diabatic sweeps in lattice gauge adiabatic quantum computing.
      In: New Journal of Physics 21, No. 043025. (DOI) (Web link)

    • Torggler, V.; Aumann, P.; Ritsch, H.; Lechner, W. (2019): A Quantum N-Queens Solver.
      In: Quantum. The Open Journal for Quantum Science 3, No. 149. (DOI) (Web link)

    Patents

    Patent
    • Hartmann, Andreas; Lechner, Wolfgang (2019): Rapid counter-diabatic sweeps in lattice gauge adiabatic quantum computing. US20220343201A1.

    • Lechner, Wolfgang (2019): Quantum Approximate Optimization with Parallelizable Gates. WO2020156680A1.

    • Lechner, Wolfgang (2019): Quantum Approximate Optimization with Parallelizable Gates. US20220207402A1.



    Lectures 2019

    Presentations at Conferences, Symposia, etc.

    Conference Lecture (Invited Lecture)
    • Lecturer(s): Lechner, W.: Quantum optimisation.
      Continuous-time quantum computing and simulation: perspectives and challenges, Buckinghamshire, 2019-10-02. (Web link)

    • Lecturer(s): Lechner, W.: Quantum Optimization.
      ESI Conference: Quantum Simulation, Wien, 2019-09-04. (Web link)

    Conference Lecture (Upon Registration)
    • Lecturer(s): Dlaska, C. Co-author(s): Lechner, Wolfgang: Designing ground states of Hopfield networks for quantum state preparation.
      AQC 2019 - Adiabatic Quantum Computing Conference, Innsbruck, 2019-06-24. (Web link)

    • Lecturer(s): Dlaska, C. Co-author(s): Sieberer, L.; Lechner, W.: Designing ground states of Hopfield networks for quantum state preparation.
      ESI Conference: Quantum Computing in Near Term, Wien, 2019-10-22. (Web link)

    • Lecturer(s): Hartmann, Andreas Co-author(s): Lechner, Wolfgang: Rapid counter-diabatic and inhomogeneous sweeps in lattice gauge adiabatic quantum computing.
      AQC 2019 - Adiabatic Quantum Computing Conference, Innsbruck, 2019-06-26. (Web link)

    Lecture at Summer-/Winterschool
    • Lecturer(s): Lechner, W.: Quantum Computation by Quantum Simulation.
      Quantum Connections in Sweden 6: Physics Summer School on Quantum Frontiers, Lidingö, Stockholm, 2019-06-11. (Web link)

    Poster Presentation
    • Lecturer(s): Aumann, P. Co-author(s): Lechner, W.: Automated Design of Superconducting Circuits.
      AQC 2019 - Adiabatic Quantum Computing Conference, Innsbruck, 2019-06-26. (Web link)

    • Lecturer(s): Aumann, Philipp Co-author(s): Lechner, Wolfgang: Automated Design of Superconducting Circuits.
      Austrian Quantum Information Conference 2019, Wien, 2019-10-31. (Web link)

    • Lecturer(s): Dlaska, C. Co-author(s): Lechner, W.; Zoller, P.; van Bijnen, R.: Stroboscopic Rydberg dressing for near term quantum optimization.
      Austrian Quantum Information Conference 2019, Wien, 2019-10-31. (Web link)

    • Lecturer(s): Dlaska, C. Co-author(s): Lechner, W.; Zoller, P.; van Bijnen, R.: Stroboscopic Rydberg dressing for near term quantum optimization.
      Continuous-time quantum computing and simulation: perspectives and challenges, Buckinghamshire, 2019-10-02. (Web link)

    • Lecturer(s): Hartmann, A. Co-author(s): Lechner, W.: Rapid counter-diabatic and inhomogeneous sweeps in lattice gauge adiabatic quantum computing.
      1. DPG Herbsttagung 2019 on Quantum Science and Information Technologies, Freiburg, 2019-09-24. (Web link)

    • Lecturer(s): Torggler, V. Co-author(s): Aumann, P.; Ritsch, H.; Lechner, W.: A Quantum N-Queens Solver.
      AQC 2019 - Adiabatic Quantum Computing Conference, Innsbruck, 2019-06-26. (Web link)



    Publications 2018

    Contributions to Books / Journals

    Journal Article (Original Paper)
    • Lechner, W. (2018): Quantum Approximate Optimization with Parallelizable Gates.
      In: IEEE Transactions on Quantum Engineering 1, No. 3102206. (DOI) (Web link)

    • Sieberer, L.; Lechner, W. (2018): Programmable superpositions of Ising configurations.
      In: Physical Review A (Atomic, Molecular and Optical Physics) 97/5, No. 052329. (DOI) (Web link)



    Lectures 2018

    Presentations at Conferences, Symposia, etc.

    Conference Lecture (Invited Lecture)
    • Lecturer(s): Lechner, W.: Quantum optimization and adiabatic quantum computing.
      Joint workshop of IMPRS-QST, CoQuS and Innsbruck Physics Research Center, Garching, 2018-12-03. (Web link)

    • Lecturer(s): Lechner, W.: Programmable superpositions with Hebbian (un-)learning.
      Conference on Quantum Machine Learning Plus, QML+, Innsbruck, 2018-09-17. (Web link)

    • Lecturer(s): Lechner, W.: Parity Constraints as a Quantum Annealing Toolbox.
      AMO Debate at Tohoku University, Sendai, 2018-06-15. (Web link)

    • Lecturer(s): Lechner, W.: Quantum Simulation.
      21th Annual Conference on Quantum Information Processing (QIP 2018), Delft, 2018-01-13. (Web link)

    Conference Lecture (Upon Registration)
    • Lecturer(s): Lechner, W.: Programmable superpositions of Ising configurations.
      Adiabatic Quantum Computing Conference (AQC 2018), Moffett Field, 2018-06-27. (Web link)

    • Lecturer(s): Lechner, W.: Programmable superpositions of Ising configurations.
      Quantum Machine Learning & Biomimetic Quantum Technologies, Bilbao, 2018-03-19. (Web link)

    • Lecturer(s): Lechner, W.: Programmable superpositions of Ising configurations.
      Quantum Simulation & Computation (QSC 2018), Bilbao, 2018-02-13. (Web link)

    Lecture at Summer-/Winterschool
    • Lecturer(s): Lechner, W.: Introduction to Quantum Simulation.
      Introductory Course on Quantum Information, Innsbruck, 2018-07-10. (Web link)

    Lecture at Project Meeting / Research Cooperation Meeting
    • Lecturer(s): Lechner, W.: Programmable Superpositions of Ising Configurations.
      42. SFB FoQuS Meeting, Innsbruck, 2018-07-12. (Web link)

    Poster Presentation
    • Lecturer(s): Torggler, V. Co-author(s): Aumann, Ph.; Ritsch, H.; Lechner, W.: A Quantum N-Queens Solver.
      43. SFB FoQuS Meeting, Innsbruck, 2018-10-19. (Web link)

    Guest Lectures

    Guest Lecture
    • Lecturer(s): Lechner, W.: Colloquium on Lattice Gauge Annealing.
      Institute for Molecular Science, Okazaki, 2018-06-13. (Web link)



    Publications 2017

    Contributions to Books / Journals

    Journal Article (Original Paper)
    • Diaz-Mendez, R.; Mezzacapo, F.; Lechner, W.; Cinti, F.; Babaev, E.; Pupillo, G. (2017): Glass Transitions in Monodisperse Cluster-Forming Ensembles: Vortex Matter in Type-1.5 Superconductors.
      In: Physical Review Letters 118/6, No. 067001. (DOI) (Web link)

    • Glätzle, A.; van Bijnen, R.; Zoller, P.; Lechner, W. (2017): A coherent quantum annealer with Rydberg atoms.
      In: Nature Communications 8, No. 15813. (DOI) (Web link)



    Lectures 2017

    Presentations at Conferences, Symposia, etc.

    Conference Lecture (Invited Lecture)
    • Lecturer(s): Lechner, W.: Optimizing Quantum Paths in Adiabatic Quantum Computing.
      GRC on Quantum Control of Light and Matter - Connecting Quantum Control and Quantum Technologies, South Hadley, MA, 2017-08-10. (Web link)

    • Lecturer(s): Lechner, W.: Parity Constraints as Building Blocks for a Scalable Quantum Annealer.
      635th WE-Heraeus Seminar on Scalable Architectures for Quantum Simulation, Bad Honnef, 2017-01-31. (Web link)

    • Lecturer(s): Lechner, W.: Quantum Annealing with Parity Constraints.
      The 47th Winter Colloquium on the Physics of Quantum Electronics (PQE-2017), Snowbird, Utah, 2017-01-13. (Web link)

    • Lecturer(s): Lechner, W. Co-author(s): Sieberer, L.: Programmable Superpositions of Ising Configurations.
      ICQSIM 2017 - International Conference on Quantum Simulation, Paris, 2017-11-16. (Web link)

    Lecture at Summer-/Winterschool
    • Lecturer(s): Lechner, W.: ITAMP/B2 Winter School on Quantum Information 2017 (3 lectures).
      ITAMP/B2 Institute Winter Graduate School on AMO Physics, Tucson, AZ, 2017-01-05. (Web link)

    Lecture at Project Meeting / Research Cooperation Meeting
    • Lecturer(s): Lechner, W.: Programmable Superpositions of Ising Configurations.
      38. SFB FoQus Meeting, Wien, 2017-10-13. (Web link)

    • Lecturer(s): Lechner, W.: Coherent Annealing.
      I. Bloch group retreat, Kreuth, 2017-03-23.

    Individual Lectures (professional development / knowledge transfer)

    Lecture (Knowledge Transfer / Further Education)
    • Lecturer(s): Lechner, W.: Quantumcomputing: Erste Computer sind da - oder alles noch weit weg?
      Microsoft Deutschland GmbH, München, 2017-10-18. (Web link)

    • Lecturer(s): Lechner, W.: Parity Constraints as a Quantum Computing Toolbox.
      Volkswagen Information Technology Center Munich (Data Lab), München, 2017-07-14.

    Presentations for the general public

    Public Lecture
    • Lechner, W.: Die faszinierende Welt der Quantenphysik.
      Tag der Physik 2017, Innsbruck, 2017-02-23. (Web link)



    Publications 2016

    Contributions to Books / Journals

    Journal Article (Original Paper)
    • Leib, M.; Zoller, P.; Lechner, W. (2016): A Transmon Quantum Annealer: Decomposing Many-Body Ising Constraints Into Pair Interactions.
      In: Quantum Science and Technology 1, No. 015008. (DOI) (Web link)

    Patents

    Patent
    • Hauke, Philipp; Lechner, Wolfgang; Zoller, Peter (2016): Quantum processing device and method. WO 2017/001404.



    Lectures 2016

    Presentations at Conferences, Symposia, etc.

    Poster Presentation
    • Lecturer(s): Glaetzle, A. Co-author(s): van Bijnen, R.; Zoller, P.; Lechner, W.: Adiabatic Quantum Computing with Rydberg Atoms.
      33. SFB FoQuS Meeting, Innsbruck, 2016-07-14. (Web link)

    • Lecturer(s): van Bijnen, R. Co-author(s): Glätzle, A.; Zoller, P.; Lechner, W.: A Coherent Quantum Annealer with Rydberg Atoms.
      Third International UQUAM Workshop, Berlin, 2016-10-24. (Web link)

    Guest Lectures

    Guest Lecture
    • Lecturer(s): Lechner, W.: Quantum Annealing with Parity Constraints.
      University of California - Santa Barbara, Santa Barbara, 2016-11-15.

    • Lecturer(s): Lechner, W.: Quantum Annealing with Parity Constraints.
      University of California - Berkeley, Berkeley, 2016-11-04.

    • Lecturer(s): Lechner, W.: Adiabatic Quantum Computing.
      University of California - Santa Barbara, Santa Barbara, 2016-10-28.

    • Lecturer(s): Lechner, W.: Quantum Machine Learning.
      Google Venice, Los Angeles, 2016-10-14.



    Publications 2015

    Contributions to Books / Journals

    Journal Article (Original Paper)
    • Dalmonte, M.; Lechner, W.; Cai, Z.; Mattioli, M.; Läuchli, A. M.; Pupillo, G. (2015): Cluster Luttinger liquids and emergent supersymmetric conformal critical points in the one-dimensional soft-shoulder Hubbard model.
      In: Physical Review B (Condensed Matter) 92, p. 045106. (DOI) (Web link)

    • Diaz-Mendez, R; Mezzacapo, F; Cinti, F; Lechner, W; Pupillo, G (2015): Monodisperse cluster crystals: Classical and quantum dynamics.
      In: Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) 92/5, No. 052307. (DOI)

    • Hauke, P.; Bonnes, L.; Heyl, M.; Lechner, W. (2015): Probing entanglement in adiabatic quantum optimization with trapped ions.
      In: Frontiers in Physics 3, No. 21. (DOI) (Web link)

    • Lechner, W; Cinti, F; Pupillo, G (2015): Tunable defect interactions and supersolidity in dipolar quantum gases on a lattice potential.
      In: Physical Review A (Atomic, Molecular and Optical Physics) 92/5, No. 053625. (DOI)

    • Lechner, W.; Hauke, P.; Zoller, P. (2015): A quantum annealing architecture with all-to-all connectivity from local interactions.
      In: Science Advances 1/9, p. e1500838. (DOI) (Web link)

    • Lechner, W; Polster, D; Maret, G; Dellago, C; Keim, P (2015): Entropy and kinetics of point defects in two-dimensional dipolar crystals.
      In: Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) 91/3, No. 032304. (DOI)

    • Lechner, W.; Zoller, P. (2015): Spatial Patterns in Rydberg Excitations from Logarithmic Pair Interactions.
      In: Physical Review Letters 115/12, No. 125301. (DOI) (Web link)

    • Leitold, C; Lechner, W; Dellago, C (2015): A string reaction coordinate for the folding of a polymer chain.
      In: Journal of Physics: Condensed Matter 27/19, No. 194126. (DOI)

    • Mattioli, M.; Glätzle, A.; Lechner, W. (2015): From classical to quantum non-equilibrium dynamics of Rydberg excitations in optical lattices.
      In: New Journal of Physics 17, No. 113039. (DOI) (Web link)

    Patents

    Patent
    • Hauke, Philipp; Lechner, Wolfgang; Zoller, Peter (2015): Quantum processing device and method. 3113084.



    Publications 2014

    Contributions to Books / Journals

    Journal Article (Original Paper)
    • Cinti, F.; Macri, T.; Lechner, W.; Pupillo, G.; Pohl, T. (2014): Defect-induced supersolidity with soft-core Bosons.
      In: Nature Communications 5, No. 3235. (DOI) (Web link)

    • Lechner, W.; Büchler, H.-P.; Zoller, P. (2014): Role of Quantum Fluctuations in the Hexatic Phase of Cold Polar Molecules.
      In: Physical Review Letters 112, No. 255301. (DOI) (Web link)



    Lectures 2014

    Presentations at Conferences, Symposia, etc.

    Poster Presentation
    • Lecturer(s): Mattioli, M. Co-author(s): Glätzle, A.; Lechner, W.; Zoller, P.: Quantum 1-spin facilitated models with Rydberg atoms in optical lattices.
      Ultracold Rydberg Physics Workshop, Granada, 2014-09-11. (Web link)



    Publications 2013

    Contributions to Books / Journals

    Journal Article (Original Paper)
    • Habraken, S.; Lechner, W.; Zoller, P. (2013): Resonances in dissipative optomechanics with nanoparticles: Sorting, speed rectification and transverse cooling.
      In: Physical Review A (Atomic, Molecular and Optical Physics) 87/5, p. 053808. (DOI) (Web link)

    • Lechner, W.; Habraken, S.; Kiesel, N.; Aspelmeyer, A.; Zoller, P. (2013): Cavity Optomechanics of Levitated Nanodumbbells: Nonequilibrium Phases and Self-Assembly.
      In: Physical Review Letters 110/14, p. 143604. (DOI) (Web link)

    • Lechner, W.; Zoller, P. (2013): From Classical to Quantum Glasses with Ultracold Polar Molecules.
      In: Physical Review Letters 111/18, p. 185306. (DOI) (Web link)

    • Mattioli, M.; Dalmonte, M.; Lechner, W.; Pupillo, G. (2013): Cluster Luttinger Liquids of Rydberg-Dressed Atoms in Optical Lattices.
      In: Physical Review Letters 111/16, p. 165302. (DOI) (Web link)

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