K. Fujikawa

activity

19952009

most citedGeometric phase of a two-level system in a dissipative environment

14 citations · 64 across the 11 of their papers we have counts for

collaborators

Showing 1995Show all

2 papers · 1 filter

hep-th1995

Gribov Problem and BRST Symmetry

Kazuo Fujikawa

After a brief historical comment on the study of BRS(or BRST) symmetry , we discuss the quantization of gauge theories with Gribov copies. A path integral with BRST symmetry can be…

hep-th1995

Phase operator for the photon, an index theorem, and quantum anomaly

Kazuo Fujikawa

An index relation $d im k er a - d im k er a^{†} = 1$ is satisfied by the creation and annihilation operators $a^{†}$ and $a$ of a harmonic oscillator. Implications of…