Michael Buchhold

Institute for Theoretical Physics
University of Cologne
Zülpicher Str. 77
Room 2.09 (New Building)
D-50937 Cologne
Germany
email:


Research Interests

    Weak disorder phenomena in Weyl materials
  • Weyl semimetals
  • Nonstandard criticality in weakly disordered Dirac materials
  • Non-equilibrium phase transitions in driven-dissipative Rydberg systems
  • Absorbing state phases with competing quantum and classical fluctuations
  • Functional renormalization group approaches to absorbing state phase transitions
  • Non-equilibrium first order phase transitions
  • Thermalization and out-of-equilibrium dynamics of interacting Luttinger liquids
  • Universality in open system realizations of Luttinger liquids
  • Thermalization of interacting one-dimensional fermions

Scientific CV

since 12/2015 PostDoc in the group of Prof. Dr. Sebastian Diehl
(University of Cologne, Germany)
09/2015 - 11/2015 PostDoc in group of Prof. Dr. Sebastian Diehl
(Technical University Dresden, Germany)
09/2014 - 08/2015 PhD student in group of Prof. Dr. Sebastian Diehl
(Technical University Dresden, Germany)
09/2012 - 08/2014 PhD student in group of Prof. Dr. Sebastian Diehl
(University of Innsbruck, Austria)
04/2007 - 08/2012 Undergraduate studies, Bachelors and Masters in the group of Prof. Dr. Walter Hofstetter
(University of Frankfurt, Germany)

Teaching

Winter 2016/17: Tutor for lecture Advanced Statistical Mechanics
Summer 2012: Tutor for lecture Theoretical Physics IV: Quantum Mechanics
Winter 2011/12: Tutor for lecture Theoretical Physics III: Classical Electrodynamics
Summer 2011: Tutor for lecture Theoretical Physics VI: Advanced Quantum Mechanics
Winter 2010/2011: Tutor for lecture Theoretical Physics V: Statistical Physics
Summer 2010: Tutor for lecture Theoretical Physics IV: Quantum Mechanics
Winter 2009/2010: Tutor for lecture Theoretical Physics V: Statistical Physics

Publications

  1. Non-equilibrium effective field theory for absorbing state phase transitions in driven open quantum spin systems
  2. M. Buchhold, B. Everest, M. Marcuzzi, I. Lesanovsky, and S. Diehl
  3. Phys. Rev. B 95, 014308 (2017). Editor's suggestion [abstract, arXiv:1611.02283]

  4. Quantum-optical magnets with competing short- and long-range interactions: Rydberg-dressed spin lattice in a cavity
  5. J. Gelhausen, M. Buchhold, A. Rosch, and P. Strack
  6. SciPost Phys. 1(1), 004 (2016). [abstract, arXiv:1608.01319]

  7. Many-Body Quantum Optics with Decaying Atomic Spin States: (g,k) Dicke model
  8. J. Gelhausen, M. Buchhold, and P. Strack
  9. Phys. Rev. A 95, 063824 (2017). [abstract, arXiv:1605.07637]

  10. Background field functional renormalization group for absorbing state phase transitions
  11. M. Buchhold, and S. Diehl
  12. Phys. Rev. E 94, 012138 (2016). [abstract, arXiv:1604.07612]

  13. Absorbing state phase transition with competing quantum and classical fluctuations
  14. M. Marcuzzi, M. Buchhold, S. Diehl, and I. Lesanovsky
  15. Phys. Rev. Lett. 116, 245701 (2016). [abstract, arXiv:1601.07305]

  16. Keldysh Field Theory for Driven Open Quantum Systems
  17. L. Sieberer, M. Buchhold, and S. Diehl
  18. Rep. Prog. Phys. 79, 096001 (2016). [abstract, arXiv:1512.00637]

  19. Prethermalization and Thermalization of a Quenched Interacting Luttinger Liquid
  20. M. Buchhold, M. Heyl, and S. Diehl
  21. Phys. Rev. A 94, 013601 (2016). [abstract, arXiv:1510.03447]

  22. Kinetic Theory for Interacting Luttinger Liquids
  23. M. Buchhold, and S. Diehl
  24. Eur. Phys. J. D 69, 224 (2015). [abstract, arXiv:1501.01027]

  25. Non-Equilibrium Universality in the Heating Dynamics of Interacting Luttinger Liquids
  26. M. Buchhold, and S. Diehl
  27. Phys. Rev. A 92, 013603 (2015). [abstract, arXiv:1404.3740]

  28. Quasi-Particle Theory for the Higgs Amplitude Mode
  29. U. Bissbort, M. Buchhold, and W. Hofstetter
  30. arXiv e-print. [arXiv:1401.4466]

  31. Dicke Quantum Spin and Photon Glass in Optical Cavities: Non-equilibrium theory and experimental signatures
  32. M. Buchhold, P. Strack, S. Sachdev, and S. Diehl
  33. Phys. Rev. A 87, 063622 (2013). [abstract, arXiv:1304.5196]

  34. Correlated Topological Phases and Exotic Magnetism with Ultracold Fermions
  35. P.P. Orth, D. Cocks, S. Rachel, M. Buchhold, K. Le Hur, and W. Hofstetter
  36. J. Phys. B: At. Mol. Opt. Phys. 46, 134004 (2013). [abstract, arXiv:1212.5607]

  37. Time-Reversal-Invariant Hofstadter-Hubbard Model with Ultracold Fermions
  38. D. Cocks, P.P. Orth, S. Rachel, M. Buchhold, K. Le Hur, and W. Hofstetter
  39. Phys. Rev. Lett. 109, 205303 (2012). [abstract, arXiv:1204.4171]

  40. Effects of Smooth Boundaries on Topological Edge Modes in Optical Lattices
  41. M. Buchhold, D. Cocks, and W. Hofstetter
  42. Phys. Rev. A. 85, 063614 (2012). [abstract, arXiv:1204.0016]

  43. Creating exotic condensates via quantum-phase-revival dynamics in engineered lattice potentials
  44. M. Buchhold, U. Bissbort, and W. Hofstetter
  45. Phys. Rev. A 84, 023631 (2011). [abstract, arXiv:1012.5100]

Thesis

  1. Thermalization and Out-of-Equilibrium Dynamics in Open Quantum Many-Body Systems
  2. Michael Buchhold, PhD Thesis, 2015

  3. Topological Phases of Interacting Fermions in Optical Lattices with Artificial Gauge Fields
  4. Michael Buchhold, Masters Thesis, 2012

  5. Collapse and Revival of Interacting Bosons in Optical Lattices
  6. Michael Buchhold, Bachelor Thesis, 2010