Keio University

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19932026

most citedAn addressable quantum dot qubit with fault-tolerant control fidelity

975 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2019 · hep-thShow all

25 papers · 2 filters

hep-th2019★ 4 cited

$Z_{n}$ modified XY and Goldstone models and vortex confinement transition

Michikazu Kobayashi, Muneto Nitta

The modified XY model is a modification of the XY model by addition of a half-periodic term. The modified Goldstone model is a regular and continuum version of the modified XY mode…

hep-th2019★ 4 cited

Remarks on the large- $N$ $C P^{N - 1}$ model

Antonino Flachi

In this paper, we consider the $C P^{N - 1}$ model confined to an interval of finite size at finite temperature and chemical potential. We obtain, in the large-N approximati…

hep-th2019★ 24 cited

Emergent discrete 3-form symmetry and domain walls

Yoshimasa Hidaka, Muneto Nitta, Ryo Yokokura

We show that axion models with the domain wall number $k$ in $(3 + 1)$ dimensions, i.e., periodic scalar field theories admitting $k$ axion domain walls, exhibit an emergent ${\mathb…

hep-th2019★ 9 cited

Chemical bonds of two vortex species with a generalized Josephson term and arbitrary charges

Chandrasekhar Chatterjee, Sven Bjarke Gudnason, Muneto Nitta

We consider the Abelian-Higgs model with two complex scalar fields and arbitrary positive integer charges with the addition of a higher-order generalization of the Josephson term.…

hep-th2019★ 9 cited

Conundrum for the free energy of a holonomous gluonic plasma at cubic order

Christiaan P. Korthals Altes, Hiromichi Nishimura, Robert D. Pisarski +1

We compute the term $\sim g^{3}$ in the free energy for a $S U (N)$ gauge theory with nonzero holonomy at nonzero temperature. If the holonomy is generated kinematically by the introdu…

hep-th2019★ 25 cited

From 3d dualities to hadron physics

Naoto Kan, Ryuichiro Kitano, Shimon Yankielowicz +1

When one of the space-time dimension is compactified on $S^{1}$ , the QCD exhibits the chiral phase transition at some critical radius. When we further turn on a background $θ$ term w…

hep-th2019★ 188 cited

An Introduction to Spontaneous Symmetry Breaking

Aron J. Beekman, Louk Rademaker, Jasper van Wezel

Perhaps the most important aspect of symmetry in physics is the idea that a state does not need to have the same symmetries as the theory that describes it. This phenomenon is know…

hep-th2019★ 21 cited

Quantum Elliptic Calogero-Moser Systems from Gauge Origami

Heng-Yu Chen, Taro Kimura, Norton Lee

We systematically study the interesting relations between the quantum elliptic Calogero-Moser system (eCM) and its generalization, and their corresponding supersymmetric gauge theo…

hep-th2019★ 17 cited

Confinement-Deconfinement Crossover in the Lattice $C P^{N - 1}$ Model

Toshiaki Fujimori, Etsuko Itou, Tatsuhiro Misumi +2

The $C P^{N - 1}$ sigma model at finite temperature is studied using lattice Monte Carlo simulations on $S_{s}^{1} \times S_{τ}^{1}$ with radii $L_{s}$ and $L_{τ}$ , respectively,…

hep-th2019★ 30 cited

Effective Lagrangian for Nambu-Goldstone modes in nonequilibrium open systems

Masaru Hongo, Suro Kim, Toshifumi Noumi +1

We develop the effective field theory of diffusive Nambu-Goldstone (NG) modes associated with spontaneous internal symmetry breaking taking place in nonequilibrium open systems. Th…

hep-th2019★ 6 cited

Localization of gauge bosons and the Higgs mechanism on topological solitons in higher dimensions

Minoru Eto, Masaki Kawaguchi

We provide complete and self-contained formulas about localization of massless/massive Abelian gauge fields on topological solitons in generic $D$ dimensions via a field dependent…

hep-th2019★ 15 cited

Web Construction of ABCDEFG and Affine Quiver Gauge Theories

Taro Kimura, Rui-Dong Zhu

The topological vertex formalism for 5d $N = 1$ gauge theories is not only a convenient tool to compute the instanton partition function of these theories, but it is also a…

hep-th2019★ 11 cited

Ground state modulations in the $C P^{N - 1}$ model

Antonino Flachi, Guglielmo Fucci, Muneto Nitta +2

In this work we examine a system consisting of a confined one-dimensional arrangement of atoms that we describe by using the 2-dimensional $C P^{N - 1}$ model, restricted to…

hep-th2019★ 9 cited

Aharonov-Bohm defects

Chandrasekhar Chatterjee, Muneto Nitta

We discuss what happens when a field receiving an Aharonov-Bohm (AB) phase develops a vacuum expectation value (VEV), with an example of an Alice string in a $U (1) \times S U (2)$ ga…

hep-th2019★ 7 cited

Large- $N$ $CP^{N - 1}$ sigma model on a Euclidean torus: uniqueness and stability of the vacuum

Stefano Bolognesi, Sven Bjarke Gudnason, Kenichi Konishi +1

In this paper we examine analytically the large- $N$ gap equation and its solution for the $2 D$ $CP^{N - 1}$ sigma model defined on a Euclidean spacetime torus of arbitrary s…

hep-th2019★ 45 cited

Fractional $θ$ angle, 't Hooft anomaly, and quantum instantons in charge- $q$ multi-flavor Schwinger model

Tatsuhiro Misumi, Yuya Tanizaki, Mithat Ünsal

This work examines non-perturbative dynamics of a $2$ -dimensional QFT by using discrete 't Hooft anomaly, semi-classics with circle compactification and bosonization. We focus on c…

hep-th2019★ 18 cited

Symmetry breaking and lattice kirigami: finite temperature effects

Antonino Flachi, Vincenzo Vitagliano

Recent work has analysed how deformations due to the insertion of a defect in a flat hexagonal lattice affect the ground state structure of an interacting fermion field theory. Suc…

hep-th2019★ 8 cited

Supersymmetric gradient flow in the Wess-Zumino model

Daisuke Kadoh, Kengo Kikuchi, Naoya Ukita

We propose a supersymmetric gradient flow equation in the four-dimensional Wess-Zumino model. The flow is constructed in two ways. One is based on the off-shell component fields an…

hep-th2019★ 33 cited

Topological order in a color-flavor locked phase of $(3 + 1)$ -dimensional $U (N)$ gauge-Higgs system

Yoshimasa Hidaka, Yuji Hirono, Muneto Nitta +2

We study a $(3 + 1)$ -dimensional $U (N)$ gauge theory with $N$ -flavor fundamental scalar fields, whose color-flavor locked (CFL) phase has topologically stable non-Abelian vortices. T…

hep-th2019★ 2 cited

Charged and neutral fixed points in the O(N)+O(N)-model with Abelian gauge fields

Aron J. Beekman, Gergely Fejős

In the Abelian-Higgs model, or Ginzburg-Landau model of superconductivity, the existence of an infrared stable charged fixed point ensures that there is a parameter range where the…

hep-th2019★ 23 cited

Triangle anomalies and nonrelativistic Nambu-Goldstone modes of generalized global symmetries

Noriyuki Sogabe, Naoki Yamamoto

In massless QCD coupled to QED in an external magnetic field, a photon with the linear polarization in the direction of the external magnetic field mixes with the charge neutral pi…

hep-th2019★ 12 cited

Anomaly-induced transport phenomena from the imaginary-time formalism

Masaru Hongo, Yoshimasa Hidaka

A derivation of the anomaly-induced transport phenomena---the chiral magnetic/vortical effect---is revisited based on the imaginary-time formalism of quantum field theory. Consider…

hep-th2019★ 23 cited

Phase structure of the twisted $S U (3) / U (1)^{2}$ flag sigma model on $R \times S^{1}$

Masaru Hongo, Tatsuhiro Misumi, Yuya Tanizaki

We investigate the phase structure of the compactified $2$ -dimensional nonlinear $S U (3) / U (1)^{2}$ flag sigma model with respect to two $θ$ -terms. Based on the circle compactification…

hep-th2019★ 2 cited

Dual formulations of vortex strings in supersymmetric Abelian Higgs model

Muneto Nitta, Ryo Yokokura

We discuss dual formulations of vortex strings (magnetic flux tubes) in the four-dimensional $N = 1$ supersymmetric Abelian Higgs model with the Fayet--Iliopoulos term in the…

Zn​ modified XY and Goldstone models and vortex confinement transition

Remarks on the large-N CPN−1 model

Emergent discrete 3-form symmetry and domain walls

Chemical bonds of two vortex species with a generalized Josephson term and arbitrary charges

Conundrum for the free energy of a holonomous gluonic plasma at cubic order

From 3d dualities to hadron physics

An Introduction to Spontaneous Symmetry Breaking

Quantum Elliptic Calogero-Moser Systems from Gauge Origami

Confinement-Deconfinement Crossover in the Lattice CPN−1 Model

Effective Lagrangian for Nambu-Goldstone modes in nonequilibrium open systems

Localization of gauge bosons and the Higgs mechanism on topological solitons in higher dimensions

Web Construction of ABCDEFG and Affine Quiver Gauge Theories

Ground state modulations in the CPN−1 model

Aharonov-Bohm defects

Large-N CPN−1 sigma model on a Euclidean torus: uniqueness and stability of the vacuum

Fractional θ angle, 't Hooft anomaly, and quantum instantons in charge-q multi-flavor Schwinger model

Symmetry breaking and lattice kirigami: finite temperature effects

Supersymmetric gradient flow in the Wess-Zumino model

Topological order in a color-flavor locked phase of (3+1)-dimensional U(N) gauge-Higgs system

Charged and neutral fixed points in the O(N)+O(N)-model with Abelian gauge fields

Triangle anomalies and nonrelativistic Nambu-Goldstone modes of generalized global symmetries

Anomaly-induced transport phenomena from the imaginary-time formalism

Phase structure of the twisted SU(3)/U(1)2 flag sigma model on R×S1

Dual formulations of vortex strings in supersymmetric Abelian Higgs model

$Z_{n}$ modified XY and Goldstone models and vortex confinement transition

Remarks on the large- $N$ $C P^{N - 1}$ model

Confinement-Deconfinement Crossover in the Lattice $C P^{N - 1}$ Model

Ground state modulations in the $C P^{N - 1}$ model

Large- $N$ $CP^{N - 1}$ sigma model on a Euclidean torus: uniqueness and stability of the vacuum

Fractional $θ$ angle, 't Hooft anomaly, and quantum instantons in charge- $q$ multi-flavor Schwinger model

Topological order in a color-flavor locked phase of $(3 + 1)$ -dimensional $U (N)$ gauge-Higgs system

Phase structure of the twisted $S U (3) / U (1)^{2}$ flag sigma model on $R \times S^{1}$