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Dynamics of a quantum phase transition and relaxation to a steady state

2009/12/31 by Jacek Dziarmaga · 35 citations
Physics and Astronomy · #Adiabatic process #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Excitation #Excited state #Gapless playback #Hamiltonian (control theory) #Open quantum system #Physics #Quantum #Quantum dissipation #Quantum dynamics #Quantum many-body systems #Quantum mechanics #Quantum phase transition #Quantum phases #Quantum simulator #Quantum system #Relaxation (psychology) #Statistical physics #Strong Light-Matter Interactions #cond-mat.mes-hall #cond-mat.quant-gas #cond-mat.stat-mech #cond-mat.str-el #cond-mat.supr-con #quant-ph

paper · pdf · doi:10.1080/00018732.2010.514702

published as Advances in Physics, vol. 59, issue 6, pp. 1063-1189 (2010) · 117 pages; review accepted in Advances in Physics

arxiv created 2010/08/09 · openalex publication_date 2010/09/22 · arxiv updated 2015/05/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We review recent theoretical work on two closely related issues: excitation of an isolated quantum condensed matter system driven adiabatically across a continuous quantum phase transition or a gapless phase, and apparent relaxation of an excited system after a sudden quench of a parameter in its Hamiltonian. Accordingly, the review is divided into two parts. The first part revolves around a quantum version of the Kibble–Zurek mechanism including also phenomena that go beyond this simple paradigm. What they have in common is that excitation of a gapless many-body system scales with a power of the driving rate. The second part attempts a systematic presentation of recent results and conjectures on apparent relaxation of a pure state of an isolated quantum many-body system after its excitation by a sudden quench. This research is motivated in part by recent experimental developments in the physics of ultracold atoms with potential applications in the adiabatic quantum state preparation and quantum computation.

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