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相关论文: Warped branches of flux compactifications

200 篇论文

We revisit Jacobson's thermodynamic derivation of gravitational dynamics in the presence of generalized, non-extensive horizon entropies. Working within a local Rindler-wedge framework, we formulate the Clausius relation as the stationarity…

广义相对论与量子宇宙学 · 物理学 2026-03-06 Marco Figliolia , Petr Jizba , Gaetano Lambiase

In this paper we study the relationship between the Einstein field equations for the (2+1)-dimensional evolving wormhole and the first law of thermodynamics. It has been shown that the Einstein field equations can be rewritten as a similar…

广义相对论与量子宇宙学 · 物理学 2010-11-29 M. Umar Farooq , M. Akbar , Mubasher Jamil

The aim of this paper is to make progress in the understanding of the Scherk-Schwarz dimensional reduction in terms of a compactification in the presence of background fluxes and torsion. From the eleven dimensional supergravity point of…

高能物理 - 理论 · 物理学 2010-02-03 L. Andrianopoli , M. A. Lledo' , M. Trigiante

Relativistic mean field theory is formulated with the Green's function method in coordinate space to investigate the single-particle bound states and resonant states on the same footing. Taking the density of states for free particle as a…

核理论 · 物理学 2015-06-23 T. T. Sun , S. Q. Zhang , Y. Zhang , J. N. Hu , J. Meng

Particle physics has evolved in the past decade through evaluating the consequences of experimental measurements as well as exploiting theoretical tools that permit exploration of new model building and cosmological possibilities.…

高能物理 - 理论 · 物理学 2022-03-16 Prateek Agrawal , Cari Cesarotti , Andreas Karch , Rashmish K. Mishra , Lisa Randall , Raman Sundrum

We analyze the generic structure of Einstein tensor projected onto a 2-D spacelike surface S defined by unit timelike and spacelike vectors u_i and n_i respectively, which describe an accelerated observer (see text). Assuming that flow…

广义相对论与量子宇宙学 · 物理学 2011-02-01 Dawood Kothawala

We present a quantum-field-theoretical framework based on path integrals and Feynman diagrams for the investigation of the quantum-optical properties of one-dimensional waveguiding structures with embedded quantum impurities. In particular,…

I review type IIB string compactifications in which the three-form field strengths satisfy a self-duality condition on the internal manifold. I begin with an overview of the models, giving preliminary formulae and several points of view…

高能物理 - 理论 · 物理学 2007-05-23 Andrew R. Frey

We determine generally the spinor Green's function and the twisted spinor Green's function in an Euclidean space with a conical-type line singularity. In particular, in the neighbourhood of the point source, we expree them as a sum of the…

广义相对论与量子宇宙学 · 物理学 2009-10-22 B. Linet

Developing the comprehensive theory of the X-ray diffraction by distorted crystals remains to be topical of the mathematical physics. Up to now, the X-ray diffraction theory grounded on the Takagi-Taupin equations with the first-order…

偏微分方程分析 · 数学 2022-12-20 Murat O. Mamchuev , Felix N. Chukhovskii

In the present paper construction of the modified function of Green equation for internal gravity waves in the stratum of the stratified medium at presence of constant average flows is considered, properties of the corresponding spectral…

流体动力学 · 物理学 2007-05-23 Vitaly V. Bulatov , Yuriy V. Vladimirov

We develop a variational calculus for a certain free energy functional on the space of all probability measures on a Kahler manifold X. This functional can be seen as a generalization of Mabuchi's K-energy functional and its twisted…

微分几何 · 数学 2012-11-14 Robert J. Berman

We derive the anomaly 8-form of 6-dimensional gauge theories arising in F theory compactifications on elliptic Calabi-Yau threefolds. The result allows to determine the matter content of certain such theories in terms of intersection…

高能物理 - 理论 · 物理学 2009-10-30 Vladimir Sadov

Determination of energy transport is crucial for understanding the energy budget and fluid circulation in density varying fluids such as the ocean and the atmosphere. However, it is rarely possible to determine the energy flux field…

流体动力学 · 物理学 2016-05-11 Michael R. Allshouse , Frank M. Lee , Philip J. Morrison , Harry L. Swinney

We consider the Freund-Rubin-Englert mechanism of compactification of N=1 supergravity in 11 dimensions. We systematically investigate both well-known and some new solutions of the classical equations of motion in 11 dimensions. In…

高能物理 - 理论 · 物理学 2010-03-16 E. K. Loginov

We investigate the derivation of Friedmann equations in Rainbow gravity following Jacobson thermodynamic approach. We do not restrict the rainbow functions to be constant as is customarily used, and show that the first law of thermodynamics…

广义相对论与量子宇宙学 · 物理学 2020-05-28 A. Ashour , M. Alcheikh , N. Chamoun

The main emphasis of this paper is to find the viable solutions of Einstein Maxwell fields equations of compact star in context of modified $f(R)$ theory of gravity. Two different models of modified $f(R)$ gravity are considered. In…

广义相对论与量子宇宙学 · 物理学 2023-05-16 M. Farasat Shamir , Aisha Rashid

The inhomogenous time-fractional telegraph equation with Caputo derevatives with constant coefficients is considered. For considered equation the general representation of regular solution in rectangular domain is obtained, and the…

偏微分方程分析 · 数学 2019-06-04 Murat O. Mamchuev

We construct Green's functions for divergence form, second order parabolic systems in non-smooth time-varying domains whose boundaries are locally represented as graph of functions that are Lipschitz continuous in the spatial variables and…

偏微分方程分析 · 数学 2014-09-25 Hongjie Dong , Seick Kim

We investigate the spectral distribution of the damped wave equation on a compact Riemannian manifold, especially in the case of a metric of negative curvature, for which the geodesic flow is Anosov. The main application is to obtain…

数学物理 · 物理学 2011-09-07 Stéphane Nonnenmacher