Scaling of the Leading Response in Linear Quench Dynamics in the Quantum Ising Model

doi:10.1088/0256-307X/29/8/086402

Chin. Phys. Lett.

2012, Vol. 29

Issue (8): 086402 DOI: 10.1088/0256-307X/29/8/086402

CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES

Scaling of the Leading Response in Linear Quench Dynamics in the Quantum Ising Model

YU Wing-Chi, WANG Li-Gang, GU Shi-Jian^**, LIN Hai-Qing

Department of Physics and ITP, The Chinese University of Hong Kong, Hong Kong

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Abstract We study the scaling behavior of the linear response in the quench dynamics in the one-dimensional transverse-field Ising model. It is found that the leading response of the system scales linearly with the system size. By considering the second derivative of the leading term of the response, we also found that it exhibits a non-trivial scaling behavior at the quantum critical point of the model.

Received: 18 April 2012 Published: 31 July 2012

PACS:	64.60.Ht	(Dynamic critical phenomena)
	75.10.Jm	(Quantized spin models, including quantum spin frustration)
	05.70.Fh	(Phase transitions: general studies)
	73.43.Nq	(Quantum phase transitions)

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