Purification of Lindblad dynamics, geometry of mixed states and geometric phases
نویسندگان
چکیده
منابع مشابه
Geometric phases for mixed states and decoherence
The gauge invariance of geometric phases for mixed states is analyzed by using the hidden local gauge symmetry which arises from the arbitrariness of the choice of the basis set defining the coordinates in the functional space. This approach gives a reformulation of the past results of adiabatic, non-adiabatic and mixed state geometric phases. The geometric phases are identified uniquely as the...
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We analyze the geometric aspects of unitary evolution of general states for a multilevel quantum system by exploiting the structure of coadjoint orbits in the unitary group Lie algebra. Using the same methods in the case of SU(3) we study the effect of degeneracies on geometric phases for three-level systems. This is shown to lead to a highly nontrivial generalization of the result for two-leve...
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ژورنال
عنوان ژورنال: Journal of Geometry and Physics
سال: 2018
ISSN: 0393-0440
DOI: 10.1016/j.geomphys.2018.06.019