Edge mode dynamics in long-range Kitaev model
In this paper we study the dynamics of long-range pairing and hopping p-wave superconducting chain after a sudden quench of chemical potential. We have shown that the quantum-classical phase transition occurs when the system is quenched to the critical point and the Loschmidt echo shows perfect pe...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2021-05-01
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| Series: | Iranian Journal of Physics Research |
| Subjects: | |
| Online Access: | http://ijpr.iut.ac.ir/article_1675_89721b7eb48bb8136eb5bd80a7a573a2.pdf |
| Summary: | In this paper we study the dynamics of long-range pairing and hopping p-wave superconducting chain after a sudden quench of chemical potential. We have shown that the quantum-classical phase transition occurs when the system is quenched to the critical point and the Loschmidt echo shows perfect periodic oscillations. Moreover we have studied the dynamical phase transition for a quench across the critical point. Our analysis shows that the dynamical phase transition occurs for the cases where the system initially prepared in the massless edge modes. While the system does not show dynamical phase transition when the system is prepared in the massive edge modes, even the quench crossing the critical point. |
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| ISSN: | 1682-6957 2345-3664 |