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相关论文: Enhanced thermal photon and dilepton production in…

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I use the holographic gauge/gravity duality to systematically calculate the jet quenching parameters in strongly coupled anisotropic plasmas in the presence of external magnetic fields. The magnetic field breaks down spatial rotation…

高能物理 - 唯象学 · 物理学 2020-08-11 Romulo Rougemont

Event horizon-scale observations of low-luminosity black hole accretion flows favor magnetically arrested disks, characterized by dynamically important magnetic fields ($\beta\lesssim1$, where $\beta$ is the ratio of plasma thermal pressure…

高能天体物理现象 · 物理学 2026-03-10 Vedant Dhruv , Lorenzo Sironi , Jordy Davelaar , Aaron Tran

Using a current-current correlation function (CF), the photon polarization tensor is calculated for a rotating hot and dense QCD medium. The spectral function (SF) and the dilepton rate (DR) are estimated therefrom. Numerical results show…

高能物理 - 唯象学 · 物理学 2022-03-16 Minghua Wei , Chowdhury Aminul Islam , Mei Huang

We study $\mathcal{N} = 4$ super Yang-Mills theory on the Coulomb branch (cSYM) by using its Type IIB supergravity dual. We compute the transport coefficients, and hard probe parameters of $\mathcal{N} = 4$ cSYM at finite temperature $T$.…

高能物理 - 理论 · 物理学 2019-09-18 Kiminad A. Mamo

We extract the electrical conductivity $\sigma_0$ of the quark gluon plasma(QGP) and study the effects of magnetic field and chiral anomaly on soft photon azimuthal anisotropy, $v_2$, based on the thermal photon spectrum at…

核理论 · 物理学 2014-10-15 Yi Yin

The intracluster medium (ICM) is the low-density diffuse magnetized plasma in galaxy clusters, which reaches virial temperatures of up to 10^8 K. Under these conditions, the plasma is weakly collisional and therefore has an anisotropic…

宇宙学与河外天体物理 · 物理学 2024-03-11 Y. Rappaz , J. Schober

We calculate the thermal spectral function of SYM plasma with finite density using holographic technique. We take the RN-AdS black hole as the dual gravity theory. In the presence of charge, vector modes of gravitational and electromagnetic…

高能物理 - 理论 · 物理学 2015-03-17 Kwanghyun Jo , Sang-Jin Sin

When a cylindrically-symmetric magnetized plasma compresses or expands, velocity-space anisotropy is naturally generated as a result of the different adiabatic conservation laws parallel and perpendicular to the magnetic field. When the…

等离子体物理 · 物理学 2023-05-18 Ian E. Ochs , Nathaniel J. Fisch

We study $\mathcal{N} = 4$ super Yang-Mills theory on the Coulomb branch (cSYM) in the strong coupling limit by using the AdS/CFT correspondence. The dual geometry is the rotating black 3-brane Type IIB supergravity solution with a single…

高能物理 - 理论 · 物理学 2019-09-18 Kiminad A. Mamo

We compute the elliptic flow $v_2$ of thermal photons in a strongly coupled plasma with constant magnetic field via gauge/gravity duality. The D3/D7 embedding is applied to generate the contributions from massive quarks. By considering the…

高能物理 - 理论 · 物理学 2014-02-04 Berndt Muller , Shang-Yu Wu , Di-Lun Yang

While plasma often behaves diamagnetically, we demonstrate that the laser irradiation of a thin opaque target with an embedded target-transverse seed magnetic field $B_\mathrm{seed}$ can trigger the generation of an order-of-magnitude…

等离子体物理 · 物理学 2020-12-02 Kathleen Weichman , Alexander P. L. Robinson , Masakatsu Murakami , Alexey V. Arefiev

Particle-in-cell simulations are used to investigate the formation of magnetic fields, B, in plasmas with perpendicular electron density and temperature gradients. For system sizes, L, comparable to the ion skin depth, d_i, it is shown that…

等离子体物理 · 物理学 2015-06-16 K. M. Schoeffler , N. F. Loureiro , R. A. Fonseca , L. O. Silva

We calculate leading-order medium photon and dilepton yields from a quark-gluon plasma using (3+1)-dimensional anisotropic hydrodynamics. In the case of dileptons, at leading-order it is sufficient to take into account non-equilibrium…

高能物理 - 唯象学 · 物理学 2015-09-15 Lusaka Bhattacharya , Radoslaw Ryblewski , Michael Strickland

Magnetic field (B) distribution of the magnetron was measured and discussed its effect on plasma parameters and deposition rate. Plasma parameters such as electron temperature (Te), electron number density (ne) were estimated using electron…

等离子体物理 · 物理学 2017-04-24 S. Gopikishan , I. Banerjee , S. K. Mahapatra

We have explored how the electrical ($\sigma_{\rm el}$) and thermal ($\kappa$) conductivities in a thermal QCD medium get affected in weak-momentum anisotropies arising either due to a strong magnetic field or due to asymptotic expansion.…

高能物理 - 唯象学 · 物理学 2019-07-24 Shubhalaxmi Rath , Binoy Krishna Patra

We investigate thermal photon production in the quark-gluon plasma (QGP) under strong magnetic fields using a magnetohydrodynamic (MHD) framework. Adopting the Bjorken flow model with power-law decaying magnetic fields $\mathbf{B}(\tau) =…

高能物理 - 唯象学 · 物理学 2026-01-30 Jie Xiong , Xiang Fan , Jing Jing , Weishan Yang , Duan She , Ze-Fang Jiang

We investigate whether the soft mode that becomes massless at the QCD critical point (CP) causes an enhancement of the dilepton production rate (DPR) and the electric conductivity around the CP through the modification of the photon…

高能物理 - 唯象学 · 物理学 2023-02-08 Toru Nishimura , Masakiyo Kitazawa , Teiji Kunihiro

Magnetic reconnection in laser-produced magnetized plasma is investigated by using optical diagnostics. The magnetic field is generated via Biermann battery effect, and the inversely directed magnetic field lines interact with each other.…

We compute dilepton production from the deconfined phase of the quark-gluon plasma using leading-order (3+1)-dimensional anisotropic hydrodynamics. The anisotropic hydrodynamics equa- tions employed describe the full spatiotemporal…

核理论 · 物理学 2015-07-23 Radoslaw Ryblewski , Michael Strickland

We investigate the combined effects of anisotropy and a magnetic field in strongly interacting gauge theories by the gauge/gravity correspondence. Our main motivation is the quark-gluon plasma produced in off-central heavy-ion collisions…

高能物理 - 理论 · 物理学 2021-03-25 Umut Gürsoy , Matti Järvinen , Govert Nijs , Juan F. Pedraza