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An anisotropic thermal plasma phase of a strongly coupled gauge theory can be holographically modelled by an anisotropic AdS black hole. The temperature and anisotropy parameter of the AdS black hole background of interest [1] is specified…

高能物理 - 理论 · 物理学 2015-11-12 Mohammad Ali-Akbari , Seyed Farid Taghavi

This paper reports the synthesis and superconducting behaviors of the tetragonal iron-chalcogenide superconductor FeSe. The electrical resistivity and magnetic moment measurements confirmed its superconductivity with a $T_c^{zero}$ and…

The pressure dependence of superconducting transition temperature $T_{\rm c}$ has been investigated through the DC magnetic measurements for FeSe$_{0.8}$ and FeSe$_{1.0}$. For both samples, with increasing pressure $P$, the $T_{\rm…

超导电性 · 物理学 2015-05-13 K. Miyoshi , Y. Takaichi , E. Mutou , K. Fujiwara , J. Takeuchi

The effect of the temperature evolution of QGP on its thermal conductivity and elliptic flow is investigated here in the presence of a time-varying magnetic field. Thermal conductivity plays a vital role in the cooling rate of the medium or…

高能物理 - 唯象学 · 物理学 2024-01-19 Kamaljeet Singh , Jayanta Dey , Raghunath Sahoo

I give a physical explanation of what shear viscosity is, and what physics determines its value. Then I explain why determining the shear viscosity of the Quark-Gluon Plasma is interesting. I outline the leading-order calculation of the QGP…

高能物理 - 唯象学 · 物理学 2017-08-23 Guy D. Moore

We discuss the general features of the electromagnetic radiation from a thermal hadronic gas as constrained by chiral symmetry. The medium effects on the electromagnetic spectral functions and the partial restoration of chiral symmetry are…

高能物理 - 唯象学 · 物理学 2014-08-20 Chang-Hwan Lee , Ismail Zahed

The specific shear viscosity (eta/s)_QGP of quark-gluon plasma (QGP) can be extracted from elliptic flow data in heavy-ion collisions by comparing them with the dynamical model VISHNU which couples a viscous fluid dynamic description of the…

核理论 · 物理学 2012-04-26 Ulrich W. Heinz , Chun Shen , Huichao Song

We perform the first simultaneous Bayesian inference of the temperature-dependent heavy-quark spatial diffusion coefficient $2\pi T\mathcal{D}_s$ and the scaled jet transport coefficient $\hat{q}/T^3$ in the quark-gluon plasma, utilizing…

核理论 · 物理学 2026-04-17 Xu-Fei Xue , Zi-Xuan Xu , Wei Dai , Jiaxing Zhao , Ben-Wei Zhang

An ensemble of massless fermions can be characterized by its total helicity charge given by the sum of axial charges of particles minus the sum of axial charges of antiparticles. We show that charged massless fermions develop a…

高能物理 - 理论 · 物理学 2024-04-30 Victor E. Ambruş , Maxim N. Chernodub

Using an effective Hamiltonian derived from the QCD multipole expansion, we calculate the cross sections of gluo-dissociation of heavy quarkonia in the quark-gluon plasma, by including both the chromo-electric dipole ($E_1$) as well as the…

核理论 · 物理学 2017-09-13 Shile Chen , Min He

At leading order in QCD coupling constant, we compute the energy loss per traveling distance of a heavy quark $dE/dz$ from elastic scattering off thermal quarks and gluons at a temperature $T$, including the thermal perturbative description…

高能物理 - 唯象学 · 物理学 2024-05-24 Jiazhen Peng , Kewei Yu , Shuang Li , Wei Xiong , Fei Sun , Wei Xie

We present results for the thermal photon emissivity of the quark-gluon plasma derived from spatially transverse vector correlators computed in lattice QCD at a temperature of 250 MeV. The analysis of the spectral functions, performed at…

高能物理 - 格点 · 物理学 2022-09-21 Marco Cè , Tim Harris , Ardit Krasniqi , Harvey B. Meyer , Csaba Török

Hot QCD medium effects have been studied in the effective quasi-particle description of quark-gluon plasma. This model encodes the collective excitation of gluons and quarks/anti-quarks in the thermal medium in terms of effective quarks and…

核理论 · 物理学 2018-01-03 Manu Kurian , Vinod Chandra

A phenomenological analysis of the experimental measurements of transverse momentum spectra of identified charged hadrons and strange hyperons in Pb-Pb and Xe-Xe collisions at the LHC is presented. The analysis is based on the relativistic…

高能物理 - 唯象学 · 物理学 2023-12-21 L. Vermunt , Y. Seemann , A. Dubla , S. Floerchinger , E. Grossi , A. Kirchner , S. Masciocchi , I. Selyuzhenkov

The Chiral Magnetic Effect (CME) is the phenomenon of electric charge separation along the external magnetic field that is induced by the chirality imbalance. The CME is a macroscopic quantum effect - it is a manifestation of the chiral…

高能物理 - 唯象学 · 物理学 2014-03-05 Dmitri E. Kharzeev

Chiral Separation Effect (CSE) for systems that feature spin 3/2 fermions was considered. For the self-consistent Adler's model with relativistic massless Rarita-Schwinger fermions (RSA model), we found that the CSE conductivity is five…

高能物理 - 唯象学 · 物理学 2021-08-18 Z. V. Khaidukov , R. A. Abramchuk

Based on a holographic far-from-equilibrium calculation of the chiral magnetic effect~(CME) in an expanding quark gluon plasma, we study collisions at various energies. We compute the time evolution of the CME current in the presence of a…

高能物理 - 唯象学 · 物理学 2022-03-23 Casey Cartwright , Matthias Kaminski , Bjoern Schenke

We calculate the viscous pressure tensor of the quark-gluon plasma in strong magnetic field. It is azimuthally anisotropic and is characterized by five shear viscosity coefficients, four of which vanish when the field strength eB is much…

核理论 · 物理学 2015-05-30 Kirill Tuchin

Strongly correlated electron liquids which occur in quantizing magnetic fields reveal a cornucopia of fascinating quantum phenomena such as fractionally charged quasiparticles, anyonic statistics, topological order, and many others. Probing…

介观与纳米尺度物理 · 物理学 2010-03-09 D. A. Abanin , I. Skachko , X. Du , E. Y. Andrei , L. S. Levitov

We present numerical results of electric conductivity $\sigma_{el}$ of a fluid obtained solving the Relativistic Transport Boltzmann equation in a box with periodic boundary conditions. We compute $\sigma_{el}$ using two methods: the…

高能物理 - 唯象学 · 物理学 2014-12-10 A. Puglisi , S. Plumari , V. Greco
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