116 citations · 1.4k across the 130 of their papers we have counts for
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Clear evasion of the uncertainty relation with very small probability
Kazuo Fujikawa, Koichiro Umetsu
We entertain the idea that the uncertainty relation is not a principle, but rather it is a consequence of quantum mechanics. The uncertainty relation is then a probabilistic statem…
Non-hermitian radial momentum operator and path integrals in polar coordinates
Kazuo Fujikawa
A salient feature of the Schrödinger equation is that the classical radial momentum term in polar coordinates is replaced by the operator $\hat{P}^{\dagger}_{r} \hat{P}…
Geometric phase of a two-level system in a dissipative environment
Kazuo Fujikawa, Ming-Guang Hu
The geometric (Berry) phase of a two-level system in a dissipative environment is analyzed by using the second-quantized formulation, which provides a unified and gauge-invariant t…
Geometric phase and chiral anomaly; their basic differences
Kazuo Fujikawa
All the geometric phases are shown to be topologically trivial by using the second quantized formulation. The exact hidden local symmetry in the Schrödinger equation, which was hit…