Iranian Journal of Physics Research

Anti-Kibble-Zurek behavior in Su–Schrieffer–Heeger (SSH) model with noisy coupling crossing the quantum critical point

Document Type : Original Article

Authors

Jalil Naji 1
Saeid Ansari 2
Rohollah Jafari 3

1 Department of Physics, Faculty of Science, Ilam University, Ilam, Iran

2 Department of Engineering Sciences and Physics, Buein Zahra Technical University, Buein Zahra, Iran

3 -Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran -School of Nano Science, Institute for Research in Fundamental Sciences (IPM), Tehran, 19395-5531, Iran.

https://doi.org/10.47176/ijpr.23.4.11818
Abstract
In this paper we show that if we impose noise to the time varying coupling parameter of a closed system, then the system exhibits anti-Kibble-Zurek behavior leading to growth of excitations. Furthermore, our finding indicates that to minimize excitations, there is optimal ramp time, which is proportional to the noise strength but the exponent does not show agreement with the results of previous works. It is demonstrated there are restrictions of adiabatic protocols, like quantum annealing, and the rate of optimal ramp time is universal.

Keywords

Kibble-Zurek mechanism
Su–Schrieffer–Heeger (SSH) model
Subjects
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