Universität zu Köln

Marcuzzi, M., Marino, J., Gambassi, A. and Silva, A. (2016). Prethermalization from a low-density Holstein-Primakoff expansion. Phys. Rev. B, 94 (21). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969

Full text not available from this repository.

Abstract

We consider the nonequilibrium dynamics arising after a quench of the transverse magnetic field of a quantum Ising chain, together with the sudden switch-on of a long-range interaction term. The dynamics after the quantum quench is mapped onto a fully connected model of hard-core bosons, after a suitable combination of a Holstein-Primakoff transformation and of a low-density expansion in the quasiparticles injected by the quench. This mapping holds for a broad class of initial states and for quenches which do not cross the critical point of the transverse field Ising model. We then study the algebraic relaxation in time of a number of observables towards a metastable, prethermal state, which becomes the asymptotic steady state in the thermodynamic limit.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Marcuzzi, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Marino, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gambassi, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Silva, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-252399
DOI:	10.1103/PhysRevB.94.214304
Journal or Publication Title:	Phys. Rev. B
Volume:	94
Number:	21
Date:	2016
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2469-9969
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language QUANTUM-SYSTEMS; THERMALIZATION; MECHANICS Multiple languages Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/25239