Results 51 to 60 of about 189,255 (150)

In-medium bottomonium properties from lattice NRQCD calculations with extended meson operators

open access: yesJournal of High Energy Physics
We calculate the temperature dependence of bottomonium correlators in (2+1)-flavor lattice QCD with the aim to constrain in-medium properties of bottomonia at high temperature.
Heng-Tong Ding   +6 more
doaj   +1 more source

Relativistic BCS-BEC Crossover at Quark Level

open access: yesEPJ Web of Conferences, 2010
The non-relativistic G0G formalism of BCS-BEC crossover at finite temperature is extended to relativistic fermion systems. The theory recovers the BCS mean field approximation at zero temperature and the non-relativistic results in a proper limit.
Zhuang P., Mao S., He L.
doaj   +1 more source

Quadratic density response function of a two dimensional electron gas

open access: yesResults in Physics, 2015
A retarded quadratic density response function of a two dimensional non-relativistic homogeneous electron gas at zero temperature is obtained in a closed-form written in terms of a non-analytic complex function.
Chang-Jin Lee
doaj   +1 more source

Lattice study on finite density QC2D towards zero temperature

open access: yesJournal of High Energy Physics
We investigate the phase structure and the equation of state (EoS) for dense two-color QCD (QC2D) at low temperature (T = 40 MeV, 324 lattice) for the purpose of extending our previous works [1, 2] at T = 80 MeV (164 lattice).
Kei Iida   +3 more
doaj   +1 more source

“1k F ” singularities and finite density ABJM theory at strong coupling

open access: yesJournal of High Energy Physics, 2017
We study non-analytic behavior in the static charge susceptibility in finite density states of the ABJM theory using its holographic dual. Emphasis is placed on a particular state characterized by vanishing entropy density at zero temperature, and Fermi ...
Oscar Henriksson, Christopher Rosen
doaj   +1 more source

Sarma phase in relativistic and non-relativistic systems

open access: yesPhysics Letters B, 2015
We investigate the stability of the Sarma phase in two-component fermion systems in three spatial dimensions. For this purpose we compare strongly-correlated systems with either relativistic or non-relativistic dispersion relation: relativistic quarks ...
I. Boettcher   +5 more
doaj   +1 more source

Evidence of a CP broken deconfined phase in 4D SU(2) Yang-Mills theory at θ = π from imaginary θ simulations

open access: yesJournal of High Energy Physics
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 simulations to study
Mitsuaki Hirasawa   +4 more
doaj   +1 more source

Grassmann tensor renormalization group approach to (1+1)-dimensional two-color lattice QCD at finite density

open access: yesJournal of High Energy Physics
We construct a Grassmann tensor network representing the partition function of (1+1)-dimensional two-color QCD with staggered fermions. The Grassmann path integral is rewritten as the trace of a Grassmann tensor network by introducing two-component ...
Kwok Ho Pai   +2 more
doaj   +1 more source

Tensor network representation of non-abelian gauge theory coupled to reduced staggered fermions

open access: yesJournal of High Energy Physics
We show how to construct a tensor network representation of the path integral for reduced staggered fermions coupled to a non-abelian gauge field in two dimensions.
Muhammad Asaduzzaman   +4 more
doaj   +1 more source

A Framework for Studying a Quantum Critical Metal in the Limit $N_f\rightarrow0$

open access: yesSciPost Physics, 2018
We study a model in 1+2 dimensions composed of a spherical Fermi surface of $N_f$ flavors of fermions coupled to a massless scalar. We present a framework to non-perturbatively calculate general fermion $n$-point functions of this theory in the limit $
Petter Säterskog
doaj   +1 more source

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