Geometry and dynamics of one-norm geometric quantum discord
Geometry and dynamics of one-norm geometric quantum discord
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一范数几何量子不和谐的几何和动力学
DOI:
10.1007/s11128-015-1176-9
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发表时间:
2016
影响因子:
2.5
通讯作者:
Paulo Mateus
中科院分区:
文献类型:
--
作者:
Zhiming Huang;Daowen Qiu;Paulo Mateus
We investigate the geometry of one-norm geometric quantum discord and present a geometric interpretation of one-norm geometric quantum discord for a class of two-qubit states. It is found that one-norm geometric quantum discord has geometric behavior different from that described in Lang and Caves (Phys Rev Lett 105:150501, 2010), Li et al. (Phys Rev A 83:022321, 2011) and Yao et al. (Phys Lett A 376:358–364, 2012). We also compare the dynamics of the one-norm geometric quantum discord and other measures of quantum correlations under correlated noise. It is shown that different decoherent channels bring different influences to quantum correlations measured by concurrence, entropic quantum discord and geometric quantum discord, which depend on the memory parameter and decoherence parameter. We lay emphasis on the behaviors such as entanglement sudden death and sudden transition of quantum discord. Finally, we study the dynamical behavior of one-norm geometric quantum discord in one-dimensional anisotropic XXZ model by utilizing the quantum renormalization group method. It is shown that the one-norm geometric quantum discord demonstrates quantum phase transition through renormalization group approach.
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影响因子:
2.9
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通讯作者:
Tiago Debarba;T. O. Maciel;R. Vianna
影响因子:
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Pirandola S
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影响因子:
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