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.
Adiabatic dynamics in open quantum critical many-body systems / Patane, D.; Silva, Alessandro; Amico, L.; Fazio, Rosario; Santoro, G. E.. - In: PHYSICAL REVIEW LETTERS. - ISSN 1079-7114. - 101:17(2008), pp. 175701.1-175701.4. [10.1103/PhysRevLett.101.175701]
Adiabatic dynamics in open quantum critical many-body systems
Silva, Alessandro;Santoro, G. E.
2008-01-01
Abstract
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.| File | Dimensione | Formato | |
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