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相关论文: A heat equation on a quaternionic contact manifold

200 篇论文

Studying the diffusion and kinetic equilibration of heavy quarks within a hot QCD medium profits from the knowledge of a coloured Lorentz force that acts on them. Starting from the spatial components of the vector current, and carrying out…

高能物理 - 唯象学 · 物理学 2021-06-25 M. Laine

We review recent progress in studies of bulk thermodynamics of strongly interacting matter, present results on the QCD equation of state and discuss the status of studies of the phase diagram at non-vanishing quark chemical potential.

高能物理 - 格点 · 物理学 2009-11-11 Frithjof Karsch

We study QCD at finite temperature in the presence of imaginary electric fields. In particular, we determine the electric susceptibility, the leading coefficient in the expansion of the QCD pressure in the imaginary field. Unlike for…

高能物理 - 格点 · 物理学 2021-10-26 Gergely Endrodi , Gergely Marko

Ohmic contacts are crucial elements of electron optics that have not received a clear theoretical description yet. We propose a model of an Ohmic contact as a piece of metal of the finite capacitance $C$ attached to a quantum Hall edge. It…

介观与纳米尺度物理 · 物理学 2015-06-15 Artur O. Slobodeniuk , Ivan P. Levkivskyi , Eugene V. Sukhorukov

This paper constructs a family of coordinate systems about a point on a quaternionic contact manifold, called quaternionic contact pseudohermitian normal coordinates. Once defined, conformal variations of the quaternionic contact structure…

微分几何 · 数学 2008-07-04 Christopher S. Kunkel

We describe two-flavor QCD lattice data for the pressure at finite temperature and zero chemical potential within a quasiparticle model. Relying only on thermodynamic selfconsistency, the model is extended to nonzero chemical potential. The…

高能物理 - 唯象学 · 物理学 2008-11-26 A. Peshier , B. Kampfer , G. Soff

We summarize and extend some of the results obtained recently for the microscopic and macroscopic behavior of a pinned harmonic chain, with random velocity flips at Poissonian times, acted on by a periodic force {at one end} and in contact…

统计力学 · 物理学 2023-05-17 Tomasz Komorowski , Joel Lebowitz , Stefano Olla , Marielle Simon

The quantum null energy condition (QNEC) is a lower bound on the energy-momentum tensor in terms of the variation of the entanglement entropy of a sub-region along a null direction. To gain insights into quantum thermodynamics of many-body…

高能物理 - 理论 · 物理学 2022-05-11 Tanay Kibe , Ayan Mukhopadhyay , Pratik Roy

We introduce the notion of paraquaternionic contact structures (pqc structures), which turns out to be a generalization of the para 3-Sasakian geometry. We derive a distinguished linear connection preserving the pqc structure. Its torsion…

微分几何 · 数学 2024-05-03 Marina Tchomakova , Stefan Ivanov , Simeon Zamkovoy

In this paper we introduce conformal heat flow of (extrinsic) biharmonic maps on $4$-manifold, simply called bi-conformal heat flow (bi-CHF), and study its properties. Similar to other CHF of harmonic maps and regularized $n$-harmonic maps,…

微分几何 · 数学 2026-03-05 Woongbae Park

The description of excitations in hot and dense (hadronic) matter is discussed with emphasis on the use of correlation functions as a common framework for comparing different model (and QCD lattice) calculations with each other. Typical…

核理论 · 物理学 2009-11-07 R. Rapp

A solution to the heat equation between Riemannian manifolds, where the domain is compact and possibly has boundary, will not leave a compact and locally convex set before the image of the boundary does.

微分几何 · 数学 2025-04-04 James Dibble

We explore the consequences of curvature and torsion on the topology of quaternionic contact manifolds with integrable vertical distribution. We prove a general Myers theorem and establish a Cartan-Hadamard result for almost qc-Einstein…

微分几何 · 数学 2014-02-11 Robert K. Hladky

We study the thermodynamic geometry arising from the free energy for the 2- and 3-flavor finite temperature hot QCD near the critical temperature. We develop a geometric notion for QCD thermodynamics, relating it with the existing…

高能物理 - 理论 · 物理学 2012-03-22 Stefano Bellucci , Vinod Chandra , Bhupendra Nath Tiwari

We approach the convergence of the Magnus, Wilcox, and symmetric Wilcox expansions by a non-commutative heat equation derived from the Maurer-Cartan equation.

泛函分析 · 数学 2024-10-02 Gyula Lakos

We propose a novel quasiparticle interpretation of the equation of state of deconfined QCD at finite temperature. Using appropriate thermal masses, we introduce a phenomenological parametrisation of the onset of confinement in the vicinity…

高能物理 - 唯象学 · 物理学 2009-11-07 R. A. Schneider , T. Renk , M. Thaler , A. Polleri , W. Weise

Quantum Chromodynamics (QCD) is the fundamental theory describing quark interactions, and various quark models based on QCD have been widely used to study the properties of hadrons, including their structures and mass spectra. However,…

高能物理 - 唯象学 · 物理学 2026-01-13 ZhiGuang Tan , YouNeng Guo , ShengJie Wang , Hua Zheng

I review recent progress in lattice QCD at non-zero temperature whith emphasis on the calculations of equation and the deconfinement as well as the chiral aspects of the QCD transition at non-zero temperature. I also briefly discuss meson…

核理论 · 物理学 2010-12-21 P. Petreczky

The low-energy theorems for QCD are generalized to finite temperature. and chemical potential, including non-zero quark masses.

核理论 · 物理学 2009-10-31 I. A. Shushpanov , J. I Kapusta , P. J. Ellis

We study here hot nuclear matter in the quark meson coupling (QMC) model which incorporates explicitly quark degrees of freedom, with quarks coupled to scalar and vector mesons. The equation of state of nuclear matter including the…

核理论 · 物理学 2008-11-26 P. K. Panda , A. Mishra , J. M. Eisenberg , W. Greiner