Adiabatic Dynamics in Open Quantum Critical Many-Body Systems

被引：89

作者：

Patane, Dario ^{[1
,2
,3
]}

Silva, Alessandro ^{[4
]}

Amico, Luigi ^{[1
,2
,3
]}

Fazio, Rosario ^{[5
,6
,7
]}

Santoro, Giuseppe E. ^{[4
,5
,8
]}

机构：

[1] Univ Complutense Madrid, Dept Fis Mat, E-28040 Madrid, Spain

[2] Univ Catania, MATIS INFM, I-95125 Catania, Italy

[3] Univ Catania, Dipartimento Metodol Fisiche & Chim DMFCI, I-95125 Catania, Italy

[4] Abdus Salam Int Ctr Theoret Phys, I-34100 Trieste, Italy

[5] Int Sch Adv Studies SISSA, I-34014 Trieste, Italy

[6] NEST CNR INFM, I-56126 Pisa, Italy

[7] Scuola Normale Super Pisa, I-56126 Pisa, Italy

[8] CNR INFM Democritos Natl Simulat Ctr, I-34014 Trieste, Italy

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.101.175701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The purpose of this work is to understand the effect of an external environment on the adiabatic dynamics of a quantum critical system. By means of scaling arguments we derive a general expression for the density of excitations produced in the quench as a function of its velocity and of the temperature of the bath. We corroborate the scaling analysis by explicitly solving the case of a one-dimensional quantum Ising model coupled to an Ohmic bath.

引用

页数：4

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