Ass.-Prof. Dr. Wolfgang Lechner

Assistant Professor

Room: 4S22 ITP
Phone: +43 512 507 52232
Email: Wolfgang.Lechner[at]uibk.ac.at

Research group: Quantum Optimization

More Information

  • FLD Research Documentation

    Publications 2020

    Contributions to Books / Journals

    Journal Article (Original Paper)
    • 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)



    Lectures 2020

    Presentations at Conferences, Symposia, etc.

    Conference Lecture (Invited Lecture)
    • 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)



    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 3, No. 149. (DOI) (Web link)

    Other Publications

    Electronic Publication, Scientific
    • Hauke, P.; Katzgraber, H. G.; Lechner, W.; Nishimori, H.; Oliver, W. D. (2019): Perspectives of quantum annealing: Methods and implementations. (Web link)



    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)
    • 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)

    Other Publications

    Electronic Publication, Scientific
    • Lechner, W. (2018): Quantum Approximate Optimization with Parallelizable Gates. (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

    Other Publications

    Electronic Publication, Scientific
    • Leib, M.; Zoller, P.; Lechner, W. (2016): A Transmon Quantum Annealer: Decomposing Many-Body Ising Constraints Into Pair Interactions. (Web link)



    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)

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

    • 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
    • Lechner, Wolfgang; Hauke, Philipp; Zoller, Peter: Quantum Processing Device and Method. European Patent Office, AU2016287262 (A1) CN107980145 (A) EP3113084 (A1) KR20180022925 (A) WO2017001404 (A1) (2015).



    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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