Dissipative engineering of cold atomic systems (Dr. Jorge Yago)
Dissipative engineering of cold atomic systems
- Datum: 30.01.2019
- Uhrzeit: 11:30
- Vortragende(r): Dr. Jorge Yago
- Department of Physics, University of Strathclyde, Glasgow, Scotland, UK
- Ort: Max Planck Institute of Quantum Optics
- Raum: Hörsaal, Raum B 0.32 / New lecture hall, Room B 0.32
In
this talk, we investigate several important examples of dissipative many-body
dynamics combining matrix product states and matrix product operator
approaches. First, we focus on the study of one-dimensional spinless fermions
and hard-core bosons. We observe how dissipation induces differences in local
observables that are identical in the closed system. secondly, we focus on
characterizing the role of dissipation, specifically particle loss and
dephasing, in the long-time behaviour of many-body localized systems. We
analyze under which conditions dissipation leads to thermalization in the
localized phase. The last part of the talk presents an example of the use of
engineered coupling to the environment, both coherent and dissipative, to
robustly create spin-symmetric fermionic states. This scheme, which combines a
Raman transfer between Bloch bands and sympathetic cooling with a reservoir
gas, prepares entangled states that exhibit quantum enhanced precision for
metrology.