Observation of many-body localization of interacting fermions in a quasirandom optical lattice
Max Planck Institute of Quantum Optics · Ludwig-Maximilians-Universität München · +2 more institutions
Abstract
Many-body localization (MBL), the disorder-induced localization of interacting particles, signals a breakdown of conventional thermodynamics because MBL systems do not thermalize and show nonergodic time evolution. We experimentally observed this nonergodic evolution for interacting fermions in a one-dimensional quasirandom optical lattice and identified the MBL transition through the relaxation dynamics of an initially prepared charge density wave. For sufficiently weak disorder, the time evolution appears ergodic and thermalizing, erasing all initial ordering, whereas above a critical disorder strength, a substantial portion of the initial ordering persists. The critical disorder value shows a distinctive…
Citation impact
- FWCI
- 106.92
- Percentile
- 100%
- References
- 66
Authors
9- MSMichael SchreiberCorresponding
Max Planck Institute of Quantum Optics, Ludwig-Maximilians-Universität München
- SSS. S. Hodgman
Max Planck Institute of Quantum Optics, Ludwig-Maximilians-Universität München
- PBPranjal Bordia
Max Planck Institute of Quantum Optics, Ludwig-Maximilians-Universität München
- HPHenrik P. Lüschen
Max Planck Institute of Quantum Optics, Ludwig-Maximilians-Universität München
- MHMark H. Fischer
Weizmann Institute of Science
Topics & keywords
- Fermion
- Lattice (music)
- Physics
- Optical lattice
- Condensed matter physics
- Theoretical physics
- Quantum mechanics