53 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The University of TokyoJP6 papers
- Kyoto UniversityJP4 papers
- Kyushu UniversityJP4 papers
- University of MiyazakiJP4 papers
- Saitama UniversityJP3 papers
- High Energy Accelerator Research OrganizationJP2 papers
- Institute of Particle and Nuclear Studies1 paper
- University of California, RiversideUS1 paper
- Yokohama National UniversityJP1 paper
- Yukawa Institute for Theoretical PhysicsJP1 paper
5 papers · 1 filter
The Fermion Determinant, its Modulus and Phase
H. Kikuchi
We consider path integration of a fermionic oscillator with a one-parameter family of boundary conditions with respect to the time coordinate. The dependence of the fermion determi…
Fermion Determinant Calculus
H. Kikuchi
The path-integral of the fermionic oscillator with a time-dependent frequency is analyzed. We give the exact relation between the boundary condition to define the domain in which t…
Valley Views: Instantons, Large Order Behaviors, and Supersymmetry
Hideaki Aoyama, Hisashi Kikuchi, Ikuo Okouchi +2
The elucidation of the properties of the instantons in the topologically trivial sector has been a long-standing puzzle. Here we claim that the properties can be summarized in term…
Recent Developments in the Theory of Tunneling
Hideaki Aoyama, Toshiyuki Harano, Hisashi Kikuchi +3
Path-integral approach in imaginary and complex time has been proven successful in treating the tunneling phenomena in quantum mechanics and quantum field theories. Latest developm…
Fake Instability in the Euclidean Formalism
Hideaki Aoyama, Toshiyuki Harano, Hisashi Kikuchi +2
We study the path-integral formalism in the imaginary-time to show its validity in a case with a metastable ground state. The well-known method based on the bounce solution leads t…