116 citations · 1.4k across the 130 of their papers we have counts for
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Lensing of Dirac monopole in Berry's phase
Kazuo Fujikawa, Koichiro Umetsu
Berry's phase, which is associated with the slow cyclic motion with a finite period, looks like a Dirac monopole when seen from far away but smoothly changes to a dipole near the l…
A new magnetic monopole inspired by Berry's phase
Shinichi Deguchi, Kazuo Fujikawa
A new static and azimuthally symmetric magnetic monopolelike object, which looks like a Dirac monopole when seen from far away but smoothly changes to a dipole near the monopole po…
Topology change from a monopole to a dipole in Berry's phase
Shinichi Deguchi, Kazuo Fujikawa
The smooth topology change of Berry's phase from a Dirac monopole-like configuration to a dipole configuration, when one approaches the monopole position in the parameter space, is…
No anomalous canonical commutators induced by Berry's phase
Shinichi Deguchi, Kazuo Fujikawa
The monopole-like singularity of Berry's adiabatic phase in momentum space and associated anomalous Poisson brackets have been recently discussed in various fields. With the help o…
Majorana neutrino and the vacuum of Bogoliubov quasiparticle
Kazuo Fujikawa
The Lagrangian of the seesaw mechanism is C violating but the same Lagrangian when re-written in terms of Majorana neutrinos is manifestly C invariant. To resolve this puzzling fea…
Baryon number violation and novel canonical anti-commutation relations
Kazuo Fujikawa, Anca Tureanu
The possible neutron-antineutron oscillation is described by an effective quadratic Lagrangian analogous to the BCS theory. It is shown that the conventional equal-time anti-commut…