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Technical University of Munich
Technical University of Munich

Collective Quantum Dynamics

The research of Rudolf Mößbauer Tenure Track Professor Michael Knap aims at a broad range of questions from condensed matter theory and bridges to quantum optics, atomic physics, and computational sciences. Interactions and correlations in condensed matter systems often manifest in striking and novel properties. These properties emerge from collective behavior of the quantum particles. Many examples can be found in nature, including superconductors, quantum magnets and superfluids. The main focus of Knap's work has been on the development of analytical and numerical techniques to elucidate the effects of strong interactions. His research has addressed various questions in non-equilibrium quantum dynamics and transport in ultracold quantum gases, interacting light-matter systems, and correlated quantum materials.

TUM-IAS funded postdoctoral researcher:
Dr. Johannes Oberreuter, Collective Quantum Dynamics

TUM-IAS funded doctoral candidates:
Simon Weidinger (PhD in 2018), Collective Quantum Dynamics
Annabelle Bohrdt, Collective Quantum Dynamics

Publications by the Focus Group

2019

  • Alexander Schuckert, Izabella Lovas, Michael Knap: Non-local emergent hydrodynamics in a long-range quantum spin system. 2019 more…
  • B. Chiaro, C. Neill, A. Bohrdt, M. Filippone, F. Arute, K. Arya, R. Babbush, D. Bacon, J. Bardin, R. Barends, S. Boixo, D. Buell, B. Burkett, Y. Chen, Z. Chen, R. Collins, A. Dunsworth, E. Farhi, A. Fowler, B. Foxen, C. Gidney, M. Giustina, M. Harrigan, T. Huang, S. Isakov, E. Jeffrey, Z. Jiang, D. Kafri, K. Kechedzhi, J. Kelly, P. Klimov, A. Korotkov, F. Kostritsa, D. Landhuis, E. Lucero, J. McClean, X. Mi, A. Megrant, M. Mohseni, J. Mutus, M. McEwen, O. Naaman, M. Neeley, M. Niu, A. Petukhov, C. Quintana, N. Rubin, D. Sank, K. Satzinger, A. Vainsencher, T. White, Z. Yao, P. Yeh, A. Zalcman, V. Smelyanskiy, H. Neven, S. Gopalakrishnan, D. Abanin, M. Knap, J. Martinis, P. Roushan: Growth and preservation of entanglement in a many-body localized system. 2019 more…
  • C. Hubig, A. Bohrdt, M. Knap, F. Grusdt, J. I. Cirac: Evaluation of time-dependent correlators after a local quench in iPEPS: hole motion in the t-J model. 2019 more…
  • Chiu, Christie S.; Ji, Geoffrey; Bohrdt, Annabelle; Xu, Muqing; Knap, Michael; Demler, Eugene; Grusdt, Fabian; Greiner, Markus; Greif, Daniel: String patterns in the doped Hubbard model. Science 365 (6450), 2019, 251-256 more…
  • Clemens Kuhlenkamp, Michael Knap: Periodically Driven Sachdev-Ye-Kitaev Models. 2019 more…
  • Feldmeier, Johannes; Pollmann, Frank; Knap, Michael: Emergent Glassy Dynamics in a Quantum Dimer Model. Physical Review Letters 123 (4), 2019 more…
  • Julian Klein, Michael Lorke, Matthias Florian, Florian Sigger, Jakob Wierzbowski, John Cerne, Kai Müller, Takashi Taniguchi, Kenji Watanabe, Ursula Wurstbauer, Michael Kaniber, Michael Knap, Richard Schmidt, Jonathan J. Finley, Alexander W. Holleitner: Atomistic defect states as quantum emitters in monolayer MoS2. 2019 more…
  • Klein, J.; Lorke, M.; Florian, M.; Sigger, F.; Sigl, L.; Rey, S.; Wierzbowski, J.; Cerne, J.; Müller, K.; Mitterreiter, E.; Zimmermann, P.; Taniguchi, T.; Watanabe, K.; Wurstbauer, U.; Kaniber, M.; Knap, M.; Schmidt, R.; Finley, J. J.; Holleitner, A. W.: Site-selectively generated photon emitters in monolayer MoS2 via local helium ion irradiation. Nature Communications 10 (1), 2019 more…
  • Pablo Sala, Tibor Rakovszky, Ruben Verresen, Michael Knap, Frank Pollmann: Ergodicity-breaking arising from Hilbert space fragmentation in dipole-conserving Hamiltonians. 2019 more…
  • Schuckert, Alexander; Knap, Michael: Many-body chaos near a thermal phase transition. SciPost Physics 7 (2), 2019 more…
  • Tibor Rakovszky, Pablo Sala, Ruben Verresen, Michael Knap, Frank Pollmann: Statistical localization: from strong fragmentation to strong edge modes. 2019 more…
  • You, Jhih-Shih; Schmidt, Richard; Ivanov, Dmitri A.; Knap, Michael; Demler, Eugene: Atomtronics with a spin: Statistics of spin transport and nonequilibrium orthogonality catastrophe in cold quantum gases. Physical Review B 99 (21), 2019 more…

2018

  • Bohrdt, A.; Greif, D.; Demler, E.; Knap, M.; Grusdt, F.: Angle-resolved photoemission spectroscopy with quantum gas microscopes. Physical Review B 97 (12), 2018 more…
  • Knap, Michael: Entanglement production and information scrambling in a noisy spin system. Physical Review B 98 (18), 2018 more…
  • Pancotti, Nicola; Knap, Michael; Huse, David A.; Cirac, J. Ignacio; Bañuls, Mari Carmen: Almost conserved operators in nearly many-body localized systems. Physical Review B 97 (9), 2018 more…
  • Schmidt, Richard; Knap, Michael; Ivanov, Dmitri A; You, Jhih-Shih; Cetina, Marko; Demler, Eugene: Universal many-body response of heavy impurities coupled to a Fermi sea: a review of recent progress. Reports on Progress in Physics 81 (2), 2018, 024401 more…
  • Weidinger, Simon A.; Gopalakrishnan, Sarang; Knap, Michael: Self-consistent Hartree-Fock approach to many-body localization. Physical Review B 98 (22), 2018 more…
  • Weidinger, Simon Adrian: Non-equilibrium Field Theory of Condensed Matter Systems - Periodic Driving and Quantum Quenches. Dissertation, 2018 more…
  • Žunkovič, Bojan; Heyl, Markus; Knap, Michael; Silva, Alessandro: Dynamical Quantum Phase Transitions in Spin Chains with Long-Range Interactions: Merging Different Concepts of Nonequilibrium Criticality. Physical Review Letters 120 (13), 2018 more…

2017

  • Agarwal, Kartiek; Altman, Ehud; Demler, Eugene; Gopalakrishnan, Sarang; Huse, David A.; Knap, Michael: Rare-region effects and dynamics near the many-body localization transition. Annalen der Physik 529 (7), 2017, 1600326 more…
  • Babadi, Mehrtash; Knap, Michael; Martin, Ivar; Refael, Gil; Demler, Eugene: Theory of parametrically amplified electron-phonon superconductivity. Physical Review B 96 (1), 2017 more…
  • Bohrdt, A; Mendl, C B; Endres, M; Knap, M: Scrambling and thermalization in a diffusive quantum many-body system. New Journal of Physics 19 (6), 2017, 063001 more…
  • Bordia, Pranjal; Lüschen, Henrik; Schneider, Ulrich; Knap, Michael; Bloch, Immanuel: Periodically driving a many-body localized quantum system. Nature Physics 13 (5), 2017, 460-464 more…
  • Gopalakrishnan, Sarang; Islam, K. Ranjibul; Knap, Michael: Noise-Induced Subdiffusion in Strongly Localized Quantum Systems. Physical Review Letters 119 (4), 2017 more…
  • Meinert, Florian; Knap, Michael; Kirilov, Emil; Jag-Lauber, Katharina; Zvonarev, Mikhail B.; Demler, Eugene; Nägerl, Hanns-Christoph: Bloch oscillations in the absence of a lattice. Science 356 (6341), 2017, 945-948 more…
  • Weidinger, Simon A.; Heyl, Markus; Silva, Alessandro; Knap, Michael: Dynamical quantum phase transitions in systems with continuous symmetry breaking. Physical Review B 96 (13), 2017 more…
  • Weidinger, Simon A.; Knap, Michael: Floquet prethermalization and regimes of heating in a periodically driven, interacting quantum system. Scientific Reports 7 (1), 2017 more…

2016

  • Cetina, M.; Jag, M.; Lous, R. S.; Fritsche, I.; Walraven, J. T. M.; Grimm, R.; Levinsen, J.; Parish, M. M.; Schmidt, R.; Knap, M.; Demler, E.: Ultrafast many-body interferometry of impurities coupled to a Fermi sea. Science 354 (6308), 2016, 96-99 more…
  • Gopalakrishnan, Sarang; Agarwal, Kartiek; Demler, Eugene A.; Huse, David A.; Knap, Michael: Griffiths effects and slow dynamics in nearly many-body localized systems. Physical Review B 93 (13), 2016 more…
  • Gopalakrishnan, Sarang; Knap, Michael; Demler, Eugene: Regimes of heating and dynamical response in driven many-body localized systems. Physical Review B 94 (9), 2016 more…
  • Knap, Michael; Babadi, Mehrtash; Refael, Gil; Martin, Ivar; Demler, Eugene: Dynamical Cooper pairing in nonequilibrium electron-phonon systems. Physical Review B 94 (21), 2016 more…
  • Wild, Dominik S.; Gopalakrishnan, Sarang; Knap, Michael; Yao, Norman Y.; Lukin, Mikhail D.: Adiabatic Quantum Search in Open Systems. Physical Review Letters 117 (15), 2016 more…

2015

  • Agarwal, Kartiek; Gopalakrishnan, Sarang; Knap, Michael; Müller, Markus; Demler, Eugene: Anomalous Diffusion and Griffiths Effects Near the Many-Body Localization Transition. Physical Review Letters 114 (16), 2015 more…
  • Babadi, Mehrtash; Demler, Eugene; Knap, Michael: Far-from-Equilibrium Field Theory of Many-Body Quantum Spin Systems: Prethermalization and Relaxation of Spin Spiral States in Three Dimensions. Physical Review X 5 (4), 2015 more…
  • Bukov, Marin; Gopalakrishnan, Sarang; Knap, Michael; Demler, Eugene: Prethermal Floquet Steady States and Instabilities in the Periodically Driven, Weakly Interacting Bose-Hubbard Model. Physical Review Letters 115 (20), 2015 more…
  • Gopalakrishnan, Sarang; Müller, Markus; Khemani, Vedika; Knap, Michael; Demler, Eugene; Huse, David A.: Low-frequency conductivity in many-body localized systems. Physical Review B 92 (10), 2015 more…
  • Smacchia, Pietro; Knap, Michael; Demler, Eugene; Silva, Alessandro: Exploring dynamical phase transitions and prethermalization with quantum noise of excitations. Physical Review B 91 (20), 2015 more…
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