28 citations · 176 across the 28 of their papers we have counts for
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ERG Kernels on Multiply Connected Configuration Spaces
Satoshi Ohya, Taichi Tanaka
In the functional-integral formulation of Euclidean field theory, exact renormalization group (ERG) transformations are realized by functional-integral kernels. Unlike the ERG flow…
Models for the BPS Berry Connection
Satoshi Ohya
Motivated by the Nahm's construction, in this paper we present a systematic construction of Schrödinger Hamiltonians for a spin-1/2 particle where the Berry connection in the groun…
Conformal Ward-Takahashi Identity at Finite Temperature
Satoshi Ohya
We study conformal Ward-Takahashi identities for two-point functions in -dimensional finite-temperature conformal field theory. We first show that the conformal Ward-Taka…
Emergent Anyon Distribution in the Unruh Effect
Satoshi Ohya
We point out that, when the Unruh-DeWitt detector couples to a scalar primary operator of -dimensional conformal field theory, the detector's power spectrum generally obeys the…
Intertwining Operator in Thermal CFT
Satoshi Ohya
It has long been known that two-point functions of conformal field theory (CFT) are nothing but the integral kernels of intertwining operators for two equivalent representations of…
Thermal Correlators from Rindler-AdS/CFT
Satoshi Ohya
In this paper we study one-dimensional conformal field theory at finite temperature dual to the two-dimensional anti-de Sitter spacetime in the Rindler coordinates. We show that co…
BPS Monopole in the Space of Boundary Conditions
Satoshi Ohya
The space of all possible boundary conditions that respect self-adjointness of Hamiltonian operator is known to be given by the group manifold in one-dimensional quantum mec…
Supersymmetry and non-Abelian geometric phase for a free particle on a circle with point-like interactions
Satoshi Ohya
Though not so widely appreciated in the literature, supersymmetric quantum mechanics provides an ideal playground for studying non-Abelian geometric phase, because supersymmetry al…
Non-Abelian Monopole in the Parameter Space of Point-like Interactions
Satoshi Ohya
We study non-Abelian geometric phase in supersymmetric quantum mechanics for a free particle on a circle with two point-like interactions at antipodal points. We…
A Simple Derivation of Finite-Temperature CFT Correlators from the BTZ Black Hole
Satoshi Ohya
We present a simple Lie-algebraic approach to momentum-space two-point functions of two-dimensional conformal field theory at finite temperature dual to the BTZ black hole. Making…
Recurrence Relations for Finite-Temperature Correlators via AdS/CFT
Satoshi Ohya
This note is aimed at presenting a new algebraic approach to momentum-space correlators in conformal field theory. As an illustration we present a new Lie-algebraic method to compu…
Parasupersymmetry in Quantum Graphs
Satoshi Ohya
We study hidden parasupersymmetry structures in purely bosonic quantum mechanics on compact equilateral graphs. We consider a single free spinless particle on the graphs and show t…
Path Integral Junctions
Satoshi Ohya
We propose path integral description for quantum mechanical systems on compact graphs consisting of N segments of the same length. Provided the bulk Hamiltonian is segment-independ…
Phase Structure of Gauge Theories on an Interval
Yukihiro Fujimoto, Tomoaki Nagasawa, Satoshi Ohya +1
We discuss gauge symmetry breaking in a general framework of gauge theories on an interval. We first derive a possible set of boundary conditions for a scalar field, which are comp…
Emergent Supersymmetry in Warped Backgrounds
Tomoaki Nagasawa, Satoshi Ohya, Kazuki Sakamoto +1
We show that quantum mechanical supersymmetries are emerged in Kaluza-Klein spectrum of linearized gravity in several warped backgrounds as a consequence of higher-dimensional gene…
Path Integral on Star Graph
Satoshi Ohya
In this paper we study path integral for a single spinless particle on a star graph with N edges, whose vertex is known to be described by U(N) family of boundary conditions. After…
SUSY QM Meets 5d Gravity
Satoshi Ohya
We report hidden quantum mechanical supersymmetry structure in five-dimensional gravity with the Randall-Sundrum background. We show that two N=2 supersymmetries are hidden in the…
Running Boundary Condition
Satoshi Ohya, Makoto Sakamoto, Motoi Tachibana
In this paper we argue that boundary condition may run with energy scale. As an illustrative example, we consider one-dimensional quantum mechanics for a spinless particle that fre…
Hierarchy of QM SUSYs on a Bounded Domain
Tomoaki Nagasawa, Satoshi Ohya, Kazuki Sakamoto +2
We systematically formulate a hierarchy of isospectral Hamiltonians in one-dimensional supersymmetric quantum mechanics on an interval and on a circle, in which two successive Hami…
Gauge-Fixing and Residual Symmetries in Gauge/Gravity Theories with Extra Dimensions
C. S. Lim, Tomoaki Nagasawa, Satoshi Ohya +2
We study compactified pure gauge/gravitational theories with gauge-fixing terms and show that these theories possess quantum mechanical SUSY-like symmetries between unphysical degr…
Supersymmetry in 5d Gravity
C. S. Lim, Tomoaki Nagasawa, Satoshi Ohya +2
We study a 5d gravity theory with a warped metric and show that two N = 2 supersymmetric quantum-mechanical systems are hidden in the 4d spectrum. The supersymmetry can be regarded…