Nonequilibrium quantum phase transitions in the XY model: comparison of unitary time evolution and reduced density operator approaches
We study nonequilibrium quantum phase transitions in the XY spin 1/2 chain using the ${{C}^{*}}$ algebra. We show that the well-known quantum phase transition at a magnetic field of h = 1 also persists in the nonequilibrium setting as long as one of the reservoirs is set to absolute zero temperature...
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| Autors principals: | , , |
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| Format: | Artigo |
| Idioma: | Inglês |
| Publicat: |
IOP Publishing
2014-01-01
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| Col·lecció: | New Journal of Physics |
| Matèries: | |
| Accés en línia: | https://doi.org/10.1088/1367-2630/16/3/033028 |
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