Exact calculation of the average work done in a quenched quantum Ising model

Authors

Salvador T. Laurente, Jr ⋅ PH National Institute of Physics, University of the Philippines Diliman
Francis N. C. Paraan ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

The main aim of this paper is to calculate the average work done in a ground state quench of the XY Heisenberg model in the transverse field quantum Ising limit. We obtain an exact closed form expression for the average work done in terms of complete elliptic integrals. This result reveals an inflection point at a pre-quench field that satisfies |h₀| = 1, which signals quantum criticality.

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Issue

2015: Proceedings of the 33rd Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2015-PB-48

Section

Poster Session PB

Published

2015-06-03

How to Cite

[1]

ST Laurente and FNC Paraan, Exact calculation of the average work done in a quenched quantum Ising model, Proceedings of the Samahang Pisika ng Pilipinas 33, SPP-2015-PB-48 (2015). URL: https://proceedings.spp-online.org/article/view/1254.