Sieberer, L. M., Buchhold, M. and Diehl, S. (2016). Keldysh field theory for driven open quantum systems. Rep. Prog. Phys., 79 (9). BRISTOL: IOP PUBLISHING LTD. ISSN 1361-6633

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Abstract

Recent experimental developments in diverse areas-ranging from cold atomic gases to light-driven semiconductors to microcavity arrays-move systems into the focus which are located on the interface of quantum optics, many-body physics and statistical mechanics. They share in common that coherent and driven-dissipative quantum dynamics occur on an equal footing, creating genuine non-equilibrium scenarios without immediate counterpart in equilibrium condensed matter physics. This concerns both their non-thermal stationary states and their many-body time evolution. It is a challenge to theory to identify novel instances of universal emergent macroscopic phenomena, which are tied unambiguously and in an observable way to the microscopic drive conditions. In this review, we discuss some recent results in this direction. Moreover, we provide a systematic introduction to the open system Keldysh functional integral approach, which is the proper technical tool to accomplish a merger of quantum optics and many-body physics, and leverages the power of modern quantum field theory to driven open quantum systems.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Sieberer, L. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Buchhold, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Diehl, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-266010
DOI: 10.1088/0034-4885/79/9/096001
Journal or Publication Title: Rep. Prog. Phys.
Volume: 79
Number: 9
Date: 2016
Publisher: IOP PUBLISHING LTD
Place of Publication: BRISTOL
ISSN: 1361-6633
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
FUNCTIONAL RENORMALIZATION-GROUP; BOSE-EINSTEIN CONDENSATION; EXPECTATION VALUE FORMALISM; GINZBURG-LANDAU EQUATION; FREE-ENERGY DIFFERENCES; MANY-BODY PHENOMENA; PHASE-TRANSITION; TRAPPED IONS; CRITICAL-DYNAMICS; OPTICAL LATTICESMultiple languages
Physics, MultidisciplinaryMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/26601

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