output
19982025
most citedDynamics of dark energy

6.3k citations

103 papers

hep-lat2025★ 1 cited

Lattice QCD study of color correlations between quarks in static multiquark systems

Toru T. Takahashi, Yoshiko Kanada-En'yo

We study the color correlation between two static quarks in 3Q () and 4Q () multiquark systems at based on the reduced two-body density matrices in c…

hep-th2025

Scalar field stochastic dynamics in de Sitter spacetime from exact solutions of quantum deficient oscillators

Yuta Nasuda, Koki Tokeshi, Yuki Watanabe

The stochastic dynamics of a scalar field in de Sitter spacetime can be regarded as a non-perturbative diffusion process, to which exact distribution and correlation functions are…

math.AC2022★ 3 cited

Local log-regular rings vs. toric rings

Shinnosuke Ishiro

Local log-regular rings are a certain class of Cohen-Macaulay local rings that are treated in logarithmic geometry. Our paper aims to provide purely commutative ring theoretic proo…

math.AC2022★ 3 cited

Perfectoid towers and their tilts : with an application to the étale cohomology groups of local log-regular rings

Shinnosuke Ishiro, Kei Nakazato, Kazuma Shimomoto

To initiate a systematic study on the applications of perfectoid methods to Noetherian rings, we introduce the notions of perfectoid towers and their tilts. We mainly show that the…

hep-lat2020★ 3 cited

Lattice QCD study of static quark and antiquark correlations at finite via entanglement entropies

Toru T. Takahashi, Yoshiko Kanada-En'yo

With the aim of clarification of color correlations among quarks, we investigate the color correlation between a static quark and an antiquark (static ) below and above th…

hep-lat2020★ 11 cited

The negative-parity spin-1/2 baryon spectrum from lattice QCD and effective theory

Rafael Pavao, Philipp Gubler, Pedro Fernandez-Soler +3

The spectrum of the negative-parity spin-1/2 baryons is studied using lattice QCD and hadronic effective theory in a unitarized coupled-channel framework. A direct comparison b…

nucl-th2020★ 78 cited

Stable double-heavy tetraquarks: spectrum and structure

Q. Meng, E. Hiyama, A. Hosaka +5

Bound states of double-heavy tetraquarks are studied in a constituent quark model. Two bound states are found for isospin and spin-parity I(J^P ) = 0(1^+) in the bb\bar{u}\bar{d} c…

hep-lat2020

Replica evolution of classical field in 4+1 dimensional spacetime toward real time dynamics of quantum field

Akira Ohnishi, Hidefumi Matsuda, Teiji Kunihiro +1

Real-time evolution of replicas of classical field is proposed as an approximate simulator of real-time quantum field dynamics at finite temperatures. We consider classical fie…

hep-ph2020★ 7 cited

Shear viscosity of classical Yang-Mills field

Hidefumi Matsuda, Teiji Kunihiro, Berndt Müller +2

We investigate the shear viscosity of the classical Yang-Mills (CYM) field on a lattice by using the Green-Kubo formula, where the shear viscosity is calculated from the time-c…

hep-lat2020★ 54 cited

Charmed baryon spectrum from lattice QCD near the physical point

Huseyin Bahtiyar, Kadir Utku Can, Guray Erkol +3

We calculate the low-lying spectrum of charmed baryons in lattice QCD on the , PACS-CS gauge configurations at the almost physical pion mass of M…

gr-qc2020★ 31 cited

Effects of Gravitational Chern-Simons during Axion-SU(2) Inflation

Leila Mirzagholi, Eiichiro Komatsu, Kaloian D. Lozanov +1

In this paper, we examine the viability of inflation models with a spectator axion field coupled to both gravitational and SU(2) gauge fields via Chern-Simons couplings. Requiring…

math.GT2020

Classification of non-free Kleinian groups generated by two parabolic transformations

Hirotaka Akiyoshi, Ken'ichi Ohshika, John Parker +2

We give a full proof to Agol's announcement on the classification of non-free Kleinian groups generated by two parabolic transformations.

cond-mat.str-el2019★ 1 cited

Metallic State in Rubidium-Loaded Low-Silica X zeolite

Peter Jeglič, Takehito Nakano, Tadej Mežnaršič +2

The ground state of alkali metals when the particle size decreases from bulk to nanometric atomic clusters is inevitably accompanied by quantum effects that can suppress their pris…

hep-lat2019★ 7 cited

Lattice QCD study of static quark and antiquark correlations via entanglement entropies

Toru T. Takahashi, Yoshiko Kanada-En'yo

We study the color correlation between static quark and antiquark () in the confined phase via reduced density matrices defined in color space. We adopt the standard W…

hep-lat2018★ 41 cited

Radiative transitions of doubly charmed baryons in lattice QCD

H. Bahtiyar, K. U. Can, G. Erkol +2

We evaluate the spin- spin- electromagnetic transitions of the doubly charmed baryons on 2+1 flavor, PACS-CS lattices with a pion mass of Me…

quant-ph2018

Channel fidelities for high-fidelity approach in KLM scheme

Kazuto Oshima

We study channel fidelity for the high-fidelity approach in the Knill-Laflamme-Milburn (KLM) scheme. We examine an optimal channel fidelity and identify the corresponding…

hep-ph2018★ 12 cited

Probing the BSM physics with CMB precision cosmology: an application to supersymmetry

Ioannis Dalianis, Yuki Watanabe

The cosmic history before the BBN is highly determined by the physics that operates beyond the Standard Model (BSM) of particle physics and it is poorly constrained observationally…

math.GT2018

A note on the cross-index of a complete graph based on a linear tree

Yusuke Gokan, Hayato Katsumata, Katsuya Nakajima +2

In this paper it is shown that a complete graph with vertices has an optimal diagram, i.e., a diagram whose crossing number equals the value of Guy's formula, with a free maxim…

quant-ph2017★ 1 cited

Lower Bounds of Success Probabilities for High-Fidelity Approach in KLM Scheme

Kazuto Oshima

In the Knill-Laflamme-Milburn (KLM) scheme, the success probability of quantum teleportation is given by , wehre is the number of the ancilla qubits. For the hi…

hep-ph2017★ 11 cited

Entropy production and isotropization in Yang-Mills theory with use of quantum distribution function

Hidekazu Tsukiji, Teiji Kunihiro, Akira Ohnishi +1

We investigate thermalization process in relativistic heavy ion collisions in terms of the Husimi-Wehrl (HW) entropy defined with the Husimi function, a quantum distribution functi…

cond-mat.str-el2017★ 2 cited

Thermally Activated Motion of Sodium Cations in Insulating Parent Low-Silica X Zeolite

Mutsuo Igarashi, Peter Jeglič, Tadej Mežnaršič +4

We report a Na spin-lattice relaxation rate, , in low-silica X zeolite. follows multiple BPP-type behavior as a result of thermal motion of sodium catio…

math.GT2017

Up-down colorings of virtual-link diagrams and the necessity of Reidemeister moves of type II

Kanako Oshiro, Ayaka Shimizu, Yoshiro Yaguchi

We introduce an up-down coloring of a virtual-link diagram. The colorabilities give a lower bound of the minimum number of Reidemeister moves of type II which are needed between tw…

math.GT2017★ 5 cited

Biquandle Virtual Brackets

Sam Nelson, Kanako Oshiro, Ayaka Shimizu +1

We introduce an infinite family of quantum enhancements of the biquandle counting invariant we call biquandle virtual brackets. Defined in terms of skein invariants of biquandle co…

hep-lat2016★ 42 cited

transition in lattice QCD

H. Bahtiyar, K. U. Can, G. Erkol +2

We evaluate the electromagnetic transition on 2+1 flavor lattices corresponding to a pion mass of MeV. We extract the magnetic Sachs and Pau…