160 citations · 430 across the 30 of their papers we have counts for
30 papers
Stochastic quantization with discrete fictitious time
Daisuke Kadoh, Mitsuhiro Kato, Makoto Sakamoto +1
We present a new approach to stochastic quantization à la Parisi-Wu with a discrete fictitious time. The noise average is modified by weights, which results in the equivalence in t…
Quantizing multi-pronged open string junction
Masako Asano, Mitsuhiro Kato
Covariant quantization of multi-pronged open bosonic string junction is studied beyond static analysis. Its excited states are described by a set of ordinary bosons as well as some…
Spiky strings in de Sitter space
Mitsuhiro Kato, Kanji Nishii, Toshifumi Noumi +2
We study semiclassical spiky strings in de Sitter space and the corresponding Regge trajectories, generalizing the analysis in anti-de Sitter space. In particular we demonstrate th…
A lattice formulation of N=2 supersymmetric SYK model
Mitsuhiro Kato, Makoto Sakamoto, Hiroto So
We construct N=2 supersymmetric SYK model on one-dimensional (euclidean time) lattice. One nilpotent supersymmetry is exactly realized on the lattice in use of the cyclic Leibniz r…
Non-renormalization theorem in a lattice supersymmetric theory and the cyclic Leibniz rule
Mitsuhiro Kato, Makoto Sakamoto, Hiroto So
N=4 supersymmetric quantum mechanical model is formulated on the lattice. Two supercharges, among four, are exactly conserved with the help of the cyclic Leibniz rule without spoil…
Supersymmetric extended string field theory in NS^n sector and NS^{n-1}-R sector
Masako Asano, Mitsuhiro Kato
We construct a class of quadratic gauge invariant actions for extended string fields defined on the tensor product of open superstring state space for multiple open string Neveu-Sc…