Masazumi Honda
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View article: Jackiw-Teitelboim gravity and Lorentzian quantum cosmology
Jackiw-Teitelboim gravity and Lorentzian quantum cosmology Open
We directly evaluate the probability amplitudes in Jackiw-Teitelboim (JT) gravity using the Lorentzian path integral formulation. By imposing boundary conditions on the scale factor and the dilaton field, the Lorentzian path integral uniqu…
View article: Evidence of a CP broken deconfined phase in 4D SU(2) Yang-Mills theory at θ = π from imaginary θ simulations
Evidence of a CP broken deconfined phase in 4D SU(2) Yang-Mills theory at θ = π from imaginary θ simulations Open
A bstract The spontaneous breaking of CP symmetry in 4D SU( N ) pure Yang-Mills theory at θ = π has recently attracted much attention in the context of the higher-form symmetry and the ’t Hooft anomaly matching condition. Here we use Monte…
View article: Numerical evidence for a CP broken deconfined phase at $θ=π$ in 4D SU(2) Yang-Mills theory through simulations at imaginary $θ$
Numerical evidence for a CP broken deconfined phase at $θ=π$ in 4D SU(2) Yang-Mills theory through simulations at imaginary $θ$ Open
We investigate the possibility of the spontaneous breaking of CP symmetry in 4D SU(2) Yang-Mills at $θ=π$, which has recently attracted much attention in the context of the higher-form symmetry and the 't Hooft anomaly matching condition. …
View article: Evidence of a CP broken deconfined phase in 4D SU(2) Yang-Mills theory at $θ=π$ from imaginary $θ$ simulations
Evidence of a CP broken deconfined phase in 4D SU(2) Yang-Mills theory at $θ=π$ from imaginary $θ$ simulations Open
The spontaneous breaking of CP symmetry in 4D SU($N$) pure Yang-Mills theory at $θ=π$ has recently attracted much attention in the context of the higher-form symmetry and the 't Hooft anomaly matching condition. Here we use Monte Carlo sim…
View article: Exactly solvable stochastic spectator
Exactly solvable stochastic spectator Open
The stochastic formalism of inflation allows us to describe the scalar-field dynamics in a non-perturbative way. The correspondence between the diffusion and Schrödinger equations makes it possible to exhaustively construct analytical solu…
View article: Anomaly inflow for dipole symmetry and higher form foliated field theories
Anomaly inflow for dipole symmetry and higher form foliated field theories Open
A bstract In accordance with recent progress of fracton topological phases, unusual topological phases of matter hosting fractionalized quasiparticle excitations with mobility constraints, new type of symmetry is studied — multipole symmet…
View article: Anomaly inflow for dipole symmetry and higher form foliated field theories
Anomaly inflow for dipole symmetry and higher form foliated field theories Open
In accordance with recent progress of fracton topological phases, unusual topological phases of matter hosting fractionalized quasiparticle excitations with mobility constraints, new type of symmetry is studied -- multipole symmetry, assoc…
View article: Multipole and fracton topological order via gauging foliated symmetry protected topological phases
Multipole and fracton topological order via gauging foliated symmetry protected topological phases Open
Spurred by the recent development of fracton topological phases, unusual topological phases possessing fractionalized quasiparticles with mobility constraints, the concept of symmetries has been renewed. In particular, in accordance with t…
View article: Determination of the CP restoration temperature at $\theta=\pi$ in 4D SU(2) Yang-Mills theory through simulations at imaginary $\theta$
Determination of the CP restoration temperature at $\theta=\pi$ in 4D SU(2) Yang-Mills theory through simulations at imaginary $\theta$ Open
The 't Hooft anomaly matching condition provides constraints on the phase structure at θ=π in 4D SU(N ) Yang-Mills theory. In particular, assuming that the theory is confined and the CP symmetry is spontaneously broken at low temperature, …
View article: Digital Quantum Simulation for Spectroscopy of Schwinger Model
Digital Quantum Simulation for Spectroscopy of Schwinger Model Open
This note discusses a method for computing the energy spectra of quantum field theory utilizing\ndigital quantum simulation. \nA quantum algorithm, called coherent imaging spectroscopy, quenches the vacuum with a time-oscillating perturbat…
View article: Digital Quantum Simulation for Spectroscopy of Schwinger Model
Digital Quantum Simulation for Spectroscopy of Schwinger Model Open
This note discusses a method for computing the energy spectra of quantum field theory utilizing digital quantum simulation. A quantum algorithm, called coherent imaging spectroscopy, quenches the vacuum with a time-oscillating perturbation…
View article: Resurgence in Lorentzian quantum cosmology: No-boundary saddles and resummation of quantum gravity corrections around tunneling saddle points
Resurgence in Lorentzian quantum cosmology: No-boundary saddles and resummation of quantum gravity corrections around tunneling saddle points Open
We revisit the path-integral approach to the wave function of the Universe by utilizing Lefschetz thimble analyses and resurgence theory. The traditional Euclidean path-integral of gravity has the notorious ambiguity of the direction of Wi…
View article: 5d SCFTs and their non-supersymmetric cousins
5d SCFTs and their non-supersymmetric cousins Open
We consider generalisations of the recently proposed supersymmetry breaking deformation of the 5d rank-1 E_1 superconformal field theory to higher rank. We generalise the arguments to theories which admit a mass deformation leading to …
View article: Multipole and fracton topological order via gauging foliated SPT phases
Multipole and fracton topological order via gauging foliated SPT phases Open
Spurred by recent development of fracton topological phases, unusual topological phases possessing fractionalized quasi-particles with mobility constraints, the concept of symmetries has been renewed. In particular, in accordance with the …
View article: Determination of the CP restoration temperature at $θ=π$ in 4D SU(2) Yang-Mills theory through simulations at imaginary $θ$
Determination of the CP restoration temperature at $θ=π$ in 4D SU(2) Yang-Mills theory through simulations at imaginary $θ$ Open
The 't Hooft anomaly matching condition provides constraints on the phase structure at $θ=π$ in 4D SU($N$) Yang-Mills theory. In particular, assuming that the theory is confined and the CP symmetry is spontaneously broken at low temperatur…
View article: Report on 2307.13724v4
Report on 2307.13724v4 Open
We consider generalisations of the recently proposed supersymmetry breaking deformation of the 5d rank-1 E1 superconformal field theory to higher rank.We generalise the arguments to theories which admit a mass deformation leading to gauge …
View article: Foliated BF theories and Multipole symmetries
Foliated BF theories and Multipole symmetries Open
Due to the recent studies of the fracton topological phases, which host deconfined quasi-particle excitations with mobility restrictions, the concept of symmetries have been updated. Focusing on one of such new symmetries, multipole symmet…
View article: Report on 2307.13724v2
Report on 2307.13724v2 Open
We consider generalisations of the recently proposed supersymmetry breaking deformation of the 5d rank-1 E1 superconformal field theory to higher rank.We generalise the arguments to theories which admit a mass deformation leading to gauge …
View article: Borel resummation of secular divergences in stochastic inflation
Borel resummation of secular divergences in stochastic inflation Open
A bstract We make use of Borel resummation to extract the exact time dependence from the divergent series found in the context of stochastic inflation. Correlation functions of self-interacting scalar fields in de Sitter spacetime are know…
View article: 5d SCFTs and their non-supersymmetric cousins
5d SCFTs and their non-supersymmetric cousins Open
We consider generalisations of the recently proposed supersymmetry breaking deformation of the 5d rank-1 $E_1$ superconformal field theory to higher rank. We generalise the arguments to theories which admit a mass deformation leading to ga…
View article: Borel resummation of secular divergences in stochastic inflation
Borel resummation of secular divergences in stochastic inflation Open
We make use of Borel resummation to extract the exact time dependence from the divergent series found in the context of stochastic inflation. Correlation functions of self-interacting scalar fields in de Sitter spacetime are known to devel…
View article: Scalar, fermionic and supersymmetric field theories with subsystem symmetries in d + 1 dimensions
Scalar, fermionic and supersymmetric field theories with subsystem symmetries in d + 1 dimensions Open
A bstract We study various non-relativistic field theories with exotic symmetries called subsystem symmetries, which have recently attracted much attention in the context of fractons. We start with a scalar theory called ϕ -theory in d + 1…
View article: Numerical studies on the finite-temperature CP restoration in 4D SU($N$) gauge theory at $\theta=\pi$
Numerical studies on the finite-temperature CP restoration in 4D SU($N$) gauge theory at $\theta=\pi$ Open
Recent studies on the't Hooft anomaly matching condition have suggested a nontrivial phase structure in 4D SU(N) gauge theory at θ = π. In the large-N limit, it has been found that CP symmetry at θ = π is broken in the confined phase, whil…
View article: Numerical studies on the finite-temperature CP restoration in 4D SU(N) gauge theory at $θ=π$
Numerical studies on the finite-temperature CP restoration in 4D SU(N) gauge theory at $θ=π$ Open
Recent studies on the 't Hooft anomaly matching condition have suggested a nontrivial phase structure in 4D SU($N$) gauge theory at $θ=π$. In the large-$N$ limit, it has been found that CP symmetry at $θ=π$ is broken in the confined phase,…
View article: Scalar, fermionic and supersymmetric field theories with subsystem symmetries in d+1 dimensions
Scalar, fermionic and supersymmetric field theories with subsystem symmetries in d+1 dimensions Open
We study various non-relativistic field theories with exotic symmetries called subsystem symmetries, which have recently attracted much attention in the context of fractons. We start with a scalar theory called $ϕ$-theory in $d+1$ dimensio…
View article: DMRG study of the higher-charge Schwinger model and its 't Hooft anomaly
DMRG study of the higher-charge Schwinger model and its 't Hooft anomaly Open
The charge-$q$ Schwinger model is the $(1+1)$-dimensional quantum electrodynamics (QED) with a charge-$q$ Dirac fermion. It has the $\mathbb{Z}_q$ $1$-form symmetry and also enjoys the $\mathbb{Z}_q$ chiral symmetry in the chiral limit, an…
View article: A new technique for solving the freezing problem in the complex Langevin simulation of 4D SU(2) gauge theory with a theta term
A new technique for solving the freezing problem in the complex Langevin simulation of 4D SU(2) gauge theory with a theta term Open
We apply the complex Langevin method (CLM) to overcome the sign problem in 4D SU(2) gauge theory with a theta term extending our previous work on the 2D U(1) case. The topology freezing problem can be solved by using open boundary conditio…