126 citations · 198 across the 7 of their papers we have counts for
7 papers
New Renormalization Scheme of Vacuum Polarization in QED
T. Fujita, N. Kanda, H. Kato +4
We examine the vacuum polarization contribution in the renormalization scheme of QED. Normally, the quadratic divergence term is discarded under the condition that the counter term…
Unphysical Gauge Fixing in Higgs Mechanism
T. Fujita, A. Kusaka, K. Tsuda +1
The unitary gauge in the Higgs mechanism is to impose the condition of on the Higgs fields. However, this is not the gauge fixing but simply a procedure for producin…
Mistery of Real Scalar Klein-Gordon Field
T. Fujita, S. Kanamaki, A. Kusaka +1
The mystery that the real scalar Klein-Gordon field has vanishing current densities is resolved. The scalar field is shown to be a complex field due to the condition of possessing…
New Concept of First Quantization
T. Fujita, S. Kanemaki, S. Oshima
We derive a Lagrangian density of Dirac field by employing the local gauge invariance and the Maxwell equation as the fundamental principle. The only assumption made here is that t…
Gauge non-invariance of quark-quark interactions
T. Fujita, S. Kanemaki, S. Oshima
We discuss the gauge invariance of quark-quark potential in QCD in the perturbative treatment, and show that the gauge dependence of the quark-gluon interaction cannot be eliminate…
Off-Shell Formulation of Supergravity on Orbifold
Tomoyuki Fujita, Taichiro Kugo, Keisuke Ohashi
An off-shell formulation is given for the ``supersymmetry in singular spaces'' which has recently been developed in an on-shell formalism by Bergshoeff, Kallosh and Van Proeyen usi…