Results 41 to 50 of about 189,255 (150)

Is the Euclidean path integral always equal to the thermal partition function?

Journal of High Energy Physics
The Euclidean path integral is compared to the thermal (canonical) partition function in curved static space-times. It is shown that if spatial sections are non-compact and there is no Killing horizon, the logarithms of these two quantities differ only ...
D. V. Diakonov
doaj   +1 more source

Holographic correlation functions at finite density and/or finite temperature

Journal of High Energy Physics, 2022
We calculate holographically one and two-point functions of scalar operators at finite density and/or finite temperature. In the case of finite density and zero temperature we argue that only scalar operators can have non-zero VEVs.
George Georgiou, Dimitrios Zoakos
doaj   +1 more source

The hyperfine splitting in QCD mesonic screening masses at asymptotically large temperatures

Journal of High Energy Physics
We determine the hyperfine splitting in the QCD flavour non-singlet mesonic screening masses at asymptotically large temperatures. The analytic calculation is carried out in the dimensionally-reduced effective theory where the first non-zero contribution
Marco Cè, Leonardo Giusti, Davide Laudicina, Michele Pepe, Pietro Rescigno   +4 more
doaj   +1 more source

Topological observables and θ dependence in high temperature QCD from lattice simulations

Journal of High Energy Physics
We study topology in Quantum Chromodynamics at high temperatures by means of lattice calculations. Simulations are performed with N f = 2 + 1 + 1 Wilson twisted mass fermions at maximal twist with physical quark masses, and temperatures T ≳ 180 MeV.
A. Yu. Kotov, M. P. Lombardo, A. Trunin
doaj   +1 more source

Topological transport from a black hole

Physics Letters B, 2018
In this paper the low temperature zero-frequency transport in a 2+1-dimensional theory dual to a dyonic black hole is discussed. It is shown that transport exhibits topological features: the transverse electric and heat conductivities satisfy the ...
Dmitry Melnikov
doaj   +1 more source

Topological or rotational non-Abelian gauge fields from Einstein-Skyrme holography

Journal of High Energy Physics, 2021
We report analytically known states at non-zero temperature which may serve as a powerful tool to reveal common topological and thermodynamic properties of systems ranging from the QCD phase diagram to topological phase transitions in condensed matter ...
Casey Cartwright, Benjamin Harms, Matthias Kaminski   +2 more
doaj   +1 more source

Chemical potential (in)dependence of hadron scatterings in the hadronic phase of QCD-like theories and its applications

Journal of High Energy Physics
We formulate a method for calculating the hadron-hadron scattering amplitudes at nonzero chemical potential (μ) in the hadronic phase at zero temperature, where the baryon number symmetry remains to be violated.
Kotaro Murakami, Etsuko Itou, Kei Iida
doaj   +1 more source

Shape of the hot topological charge density spectral function

Journal of High Energy Physics, 2022
After motivating an interest in the shape of the topological charge density spectral function in hot Yang-Mills theories, we estimate it with the help of thermally averaged classical real-time simulations, for N c = 2, 3. After subtracting a perturbative
M. Laine, L. Niemi, S. Procacci, K. Rummukainen   +3 more
doaj   +1 more source

On the absence of the chiral magnetic effect in equilibrium QCD

Journal of High Energy Physics
In this paper we investigate the chiral magnetic effect (CME): the generation of an electric current due to a homogeneous background magnetic field and a homogeneous chiral imbalance in QCD.
B. B. Brandt, G. Endrődi, E. Garnacho-Velasco, G. Markó   +3 more
doaj   +1 more source

One-dimensional QCD at finite density and its ’t Hooft-Veneziano limit

Journal of High Energy Physics
An exact solution of one-dimensional lattice gauge theory at finite temperature and non-zero chemical potential is reviewed for the gauge groups G = Z(N), U(N), SU(N) for all values of N and the number of fermion flavors N f .
O. Borisenko, V. Chelnokov, S. Voloshyn, P. Yefanov   +3 more
doaj   +1 more source