116 citations · 1.4k across the 130 of their papers we have counts for
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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…