About me

Hi! I am a physicist with a background in quantum many-body physics and simulation. Currently, I work as a Development Engineer at Airbus Defence and Space. Until April 2024, I was a Marie Skłodowska-Curie Postdoctoral Fellow, hosted by the Geballe Laboratory for Advanced Materials at Stanford University, USA, and the Institute of Theoretical Physics at Leibniz Universität Hannover, Germany. Prior to that I was a postdoc in the Department of Physics and Astronomy at University College London, UK. I obtained my PhD from the University of Osnabrück, Germany.

Funding

I was awarded a MSCA Postdoctoral Fellowship by the European Commission for my project MaBoQuaCo "Quantum Many-Body Dynamics and Noisy Intermediate-Scale Quantum Computers: Interconnections, Near-Term Applications, and Novel Simulation Schemes". The goal of the project is to explore fundamental aspects of nonequilibrium many-body quantum physics at the intersection of condensed matter physics, quantum statistical mechanics, and quantum information.
The project has a total budget of approximately 240.000€, giving me the opportunity to conduct research at Stanford University, USA, during the first phase, as well as at Leibniz Universität Hannover, Germany, during the second phase.

Research

Below are selected figures of some of my publications. Feel free to click on an image for more details. For a more complete picture, check out my full list of publications.

  • All
  • 2024
  • 2023
  • 2022
  • 2021
  • 2020
  • 2019
  • 2018

Publications

Preprints of my publications can be found on my arXiv page.
You can also have a look at my Google Scholar profile.
My ORCID is 0000-0003-2184-5275.
  1. Simulating the dynamics of large many-body quantum systems with Schrödinger-Feynman techniques
    J. Richter
    arXiv:2403.19864 Data set

  2. Temporal relaxation of disordered many-body quantum systems under driving and dissipation
    J. Richter
    arXiv:2403.03315 Data set

  3. Transport and integrability-breaking in non-Hermitian many-body quantum systems
    D. E. Mahoney and J. Richter
    arXiv:2403.01681 Phys. Rev. B 110, 134302 (2024) Data set

  4. Lindblad dynamics from spatio-temporal correlation functions in nonintegrable spin-1/2 chains with different boundary conditions
    M. Kraft, J. Richter, F. Jin, S. Nandy, J. Herbrych, K. Michielsen, H. De Raedt, J. Gemmer, and R. Steinigeweg
    arXiv:2402.18177 Phys. Rev. Research 6, 023251 (2024)

  5. Emergence of unitary symmetry of microcanonically truncated operators in chaotic quantum systems
    J. Wang, J. Richter, M. H. Lamann, R. Steinigeweg, J. Gemmer, and A. Dymarsky
    arXiv:2310.20264 Phys. Rev. E 110, L032203 (2024) Data set

  6. Spin-1/2 XXZ chain coupled to two Lindblad baths: Constructing nonequilibrium steady states from equilibrium correlation functions
    T. Heitmann, J. Richter, F. Jin, S. Nandy, Z. Lenarčič, J. Herbrych, K. Michielsen, H. De Raedt, J. Gemmer, and R. Steinigeweg
    arXiv:2303.00430 Phys. Rev. B 108, L201119 (2023) Data set
    Letter

  7. Real-time broadening of bath-induced density profiles from closed-system correlation functions
    T. Heitmann, J. Richter, J. Herbrych, J. Gemmer, and R. Steinigeweg
    arXiv:2210.10528 Phys. Rev. E 108, 024102 (2023) Data set

  8. Hydrodynamics in long-range interacting systems with center-of-mass conservation
    A. Morningstar, N. O'Dea, and J. Richter
    arXiv:2304.12354 Phys. Rev. B 108, L020304 (2023) Data set
    Letter

  9. Absence of localization in two-dimensional Clifford circuits
    T. Farshi, J. Richter, D. Toniolo, A. Pal, and L. Masanes
    arXiv:2210.10129 PRX Quantum 4, 030302 (2023) Data set

  10. Transport and entanglement growth in long-range random Clifford circuits
    J. Richter, O. Lunt, and A. Pal
    arXiv:2205.06309 Phys. Rev. Research 5, L012031 (2023) Data set
    Letter

  11. Spatiotemporal dynamics of classical and quantum density profiles in low-dimensional spin systems
    T. Heitmann, J. Richter, F. Jin, K. Michielsen, H. De Raedt, and R. Steinigeweg
    arXiv:2207.02061 Phys. Rev. Research 4, 043147 (2022)

  12. Quantum simulation using noisy unitary circuits and measurements
    O. Lunt, J. Richter, and A. Pal
    arXiv:2112.06682 Chapter 10 in Entanglement in Spin Chains edited by A. Bayat et al.
    Review article

  13. Many-body localization and delocalization dynamics in the thermodynamic limit
    J. Richter and A. Pal
    arXiv:2202.10498 Phys. Rev. B 105, L220405 (2022)
    Letter

  14. Eigenstate thermalization hypothesis and its deviations from random-matrix theory beyond the thermalization time
    J. Wang, M. H. Lamann, J. Richter, R. Steinigeweg, A. Dymarsky, and J. Gemmer
    arXiv:2110.04085 Phys. Rev. Lett. 128, 180601 (2022)
    Letter

  15. Anomalous hydrodynamics in a class of scarred frustration-free Hamiltonians
    J. Richter and A. Pal
    arXiv:2107.13612 Phys. Rev. Research 4, L012003 (2022)
    Letter

  16. Nontrivial damping of quantum many-body dynamics
    T. Heitmann, J. Richter, J. Gemmer, and R. Steinigeweg
    arXiv:2103.06646 Phys. Rev. E 104, 054145 (2021)

  17. Quantum versus classical dynamics in spin models: Chains, ladders, and square lattices
    D. Schubert, J. Richter, F. Jin, K. Michielsen, H. De Raedt, and R. Steinigeweg
    arXiv:2104.00472 Phys. Rev. B 104, 054415 (2021)

  18. Quantum scars and bulk coherence in a symmetry-protected topological phase
    J. Jeyaretnam, J. Richter, and A. Pal
    arXiv:2103.15880 Phys. Rev. B 104, 014424 (2021)

  19. Simulating hydrodynamics on noisy intermediate-scale quantum devices with random circuits
    J. Richter and A. Pal
    arXiv:2012.02795 Phys. Rev. Lett. 126, 230501 (2021)
    Letter PRL Editors' Suggestion

  20. Eigenstate thermalization hypothesis beyond standard indicators: Emergence of random-matrix behavior at small frequencies
    J. Richter, A. Dymarsky, R. Steinigeweg, and J. Gemmer
    arXiv:2007.15070 Phys. Rev. E 102, 042127 (2020)

  21. Quantum quench dynamics in the transverse-field Ising model: A numerical expansion in linked rectangular clusters
    J. Richter, T. Heitmann, and R. Steinigeweg
    arXiv:2005.03104 SciPost Phys. 9, 031 (2020)

  22. Density dynamics in the mass-imbalanced Hubbard chain
    T. Heitmann, J. Richter, T. Dahm, and R. Steinigeweg
    arXiv:2004.13604 Phys. Rev. B 102, 045137 (2020)

  23. Exponential damping induced by random and realistic perturbations
    J. Richter, F. Jin, L. Knipschild, H. De Raedt, K. Michielsen, J. Gemmer, and R. Steinigeweg
    arXiv:1906.09268 Phys. Rev. E 101, 062133 (2020)

  24. Finite-size scaling of typicality-based estimates
    J. Schnack, J. Richter, T. Heitmann, J. Richter, and R. Steinigeweg
    arXiv:2002.00411 Z. Naturforsch. A 75, 465 (2020)

  25. Selected applications of typicality to real-time dynamics of quantum many-body systems
    T. Heitmann, J. Richter, D. Schubert, and R. Steinigeweg
    arXiv:2001.05289 Z. Naturforsch. A 75, 421 (2020)
    Review article

  26. Temporal relaxation of gapped many-body quantum systems
    P. Reimann, B. N. Balz, J. Richter, and R. Steinigeweg
    arXiv:2002.08137 Phys. Rev. B 101, 094302 (2020)

  27. Decay of spin-spin correlations in disordered quantum and classical spin chains
    J. Richter, D. Schubert, and R. Steinigeweg
    arXiv:1911.09917 Phys. Rev. Research 2, 013130 (2020)

  28. Magnetization dynamics in clean and disordered spin-1 XXZ chains
    J. Richter, N. Casper, W. Brenig, and R. Steinigeweg
    arXiv:1907.03004 Phys. Rev. B 100, 144423 (2019)

  29. Relaxation of dynamically prepared out-of-equilibrium initial states within and beyond linear response theory
    J. Richter, M. H. Lamann, C. Bartsch, R. Steinigeweg, and J. Gemmer
    arXiv:1905.03292 Phys. Rev. E 100, 032124 (2019)

  30. Impact of eigenstate thermalization on the route to equilibrium
    J. Richter, J. Gemmer, and R. Steinigeweg
    arXiv:1805.11625 Phys. Rev. E 99, 050104(R) (2019)
    Rapid Communication

  31. Magnetization and energy dynamics in spin ladders: Evidence of diffusion in time, frequency, position, and momentum
    J. Richter, F. Jin, L. Knipschild, J. Herbrych, H. De Raedt, K. Michielsen, J. Gemmer, and R. Steinigeweg
    arXiv:1811.02806 Phys. Rev. B 99, 144422 (2019)

  32. Combining dynamical quantum typicality and numerical linked cluster expansions
    J. Richter and R. Steinigeweg
    arXiv:1901.02909 Phys. Rev. B 99, 094419 (2019)

  33. Relation between far-from-equilibrium dynamics and equilibrium correlation functions for binary operators
    J. Richter and R. Steinigeweg
    arXiv:1711.00672 Phys. Rev. E 99, 012114 (2019)

  34. Dynamical typicality for initial states with a preset measurement statistics of several commuting observables
    B. N. Balz, J. Richter, J. Gemmer, R. Steinigeweg, and P. Reimann
    arXiv:1904.03105 Chapter 17 in Thermodynamics in the Quantum Regime edited by F. Binder et al.

  35. Sudden removal of a static force in a disordered system: Induced dynamics, thermalization, and transport
    J. Richter, J. Herbrych, and R. Steinigeweg
    arXiv:1808.00497 Phys. Rev. B 98, 134302 (2018)

  36. Real-time dynamics of typical and untypical states in non-integrable systems
    J. Richter, F. Jin, H. De Raedt, K. Michielsen, J. Gemmer, and R. Steinigeweg
    arXiv:1801.07031 Phys. Rev. B 97, 174430 (2018)