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Showing 2006 · quant-phShow all
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quant-ph2006★ 12 cited
Geometric phases for mixed states and decoherence
Kazuo Fujikawa
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 de…
quant-ph2006★ 7 cited
Geometric phases, gauge symmetries and ray representation
Kazuo Fujikawa
The conventional formulation of the non-adiabatic (Aharonov-Anandan) phase is based on the equivalence class which is not a symmetry of the Schrödinger…
quant-ph2006
Quantum entanglement measure based on wedge product
Hoshang Heydari
We construct an entanglement measure that coincides with the generalized concurrence for a general pure bipartite state based on wedge product. Moreover, we construct an entangleme…