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Doubly special relativity (DSR), with both an invariant velocity and an invariant length scale, elegantly preserves the principle of relativity between moving observers, and appears as a promising candidate of the quantum theory of gravity.…

High Energy Physics - Theory · Physics 2011-04-04 Xinyu Zhang , Lijing Shao , Bo-Qiang Ma

We investigate the anti-de Sitter (AdS) counterpart to the well studied de Sitter (dS) model for energy-momentum space, viz "$\kappa$-momentum space" space (with a structure based on the properties of the $\kappa$-Poincar\'e Hopf algebra).…

General Relativity and Quantum Cosmology · Physics 2015-07-22 Michele Arzano , Giulia Gubitosi , Joao Magueijo , Giovanni Amelino-Camelia

We revisit the formalism of $\text{T}\overline{\text{T}}$ deformations for quantum theories that are holographically dual to two-dimensional dilaton-gravity theories with Dirichlet boundary conditions. To better understand the microscopics…

High Energy Physics - Theory · Physics 2025-01-17 Sergio E. Aguilar-Gutierrez , Andrew Svesko , Manus R. Visser

In this article, we discuss some well-known theoretical models where an observer-independent energy scale or a length scale is present. The presence of this invariant scale necessarily deforms the Lorentz symmetry. We study different…

General Relativity and Quantum Cosmology · Physics 2014-11-14 Sudipta Das , Souvik Pramanik , Subir Ghosh

We resort to the methods of statistical mechanics in order to determine the effects that a deformed dispersion relation has upon the thermodynamics of a photon gas. The ensuing modifications to the density of states, partition function,…

General Relativity and Quantum Cosmology · Physics 2008-11-26 A. Camacho , A. Macias

We consider the AdS/dS CFT correspondence and study the nature of the thermal bath of the de Sitter field theory using holography. Unlike the temperature of a thermal field theory in flat spacetime, the temperature of a superconformal field…

High Energy Physics - Theory · Physics 2017-08-09 Chong-Sun Chu , Dimitrios Giataganas

Quantum Gravity framework motivates us to find new theories in which an observer independent finite energy upper bound (preferably Planck Energy) exists. We have studied the modifications in the thermodynamical properties of a photon gas in…

High Energy Physics - Theory · Physics 2010-05-12 Sudipta Das , Dibakar Roychowdhury

We study spherically symmetric equilibrium configurations of self-gravitating massless thermal radiation in asymptotically anti-de Sitter space. In d=4, it was shown by Page and Phillips that there is a maximum red-shifted temperature,…

General Relativity and Quantum Cosmology · Physics 2007-08-02 Vladislav Vaganov

A particular framework for quantum gravity is the doubly special relativity (DSR) formalism that introduces a new observer independent scale (the Planck scale). We resort to the methods of statistical mechanics in this framework to…

High Energy Physics - Theory · Physics 2017-07-17 Mir Mehedi Faruk , Md. Muktadir Rahman

Doubly special relativity(DSR) introduce a minimal length scale i.e. the Planck length scale, which is independent length scale in addition to the speed of light in the normal special theory of relativity(STR). Doubly special relativity…

General Physics · Physics 2020-01-08 Ravikant Verma , Partha Nandi

Photon Bose-Einstein condensates are characterised by a quite weak interaction, so they behave nearly as an ideal Bose gas. Moreover, since the current experiments are conducted in a microcavity, the longitudinal motion is frozen out and…

Quantum Gases · Physics 2022-02-14 Enrico Stein , Axel Pelster

Motivated by a question of defining gauge-invariant observables in cosmology and by the close connection between perturbation theory in de Sitter (dS) and Anti-de Sitter (AdS), we study scalar electrodynamics in AdS in setups that are…

High Energy Physics - Theory · Physics 2026-01-09 Ankur , Lorenzo Di Pietro , Victor Gorbenko , Shota Komatsu , Veronica Sacchi

We consider the thermodynamic properties of $(d+1)$-dimensional spacetimes with NUT charges. Such spacetimes are asymptotically locally anti de Sitter (or flat), with non-trivial topology in their spatial sections, and can have fixed point…

High Energy Physics - Theory · Physics 2010-04-05 R. Clarkson , L. Fatibene , R. B. Mann

In this paper we investigate the equilibrium self-gravitating radiation in higher dimensional, plane symmetric anti-de Sitter space. We find that there exist essential differences from the spherically symmetric case: In each dimension…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Zhong-Hua Li , Bin Hu , Rong-Gen Cai

Starting from a formulation for the $dS$ element that includes movement, and considering the variation of the entropy Lorentz invariant, we found the relativistic transformations for thermodynamic systems that satisfy the three laws of…

Classical Physics · Physics 2008-03-20 C. A. Farías , P. S. Moya , V. A. Pinto

We discuss the thermodynamics of a gas of black holes in five-dimensional anti-de-Sitter (AdS) space, showing that they are described by a van der Waals equation of state. Motivated by the Maldacena conjecture, we relate the energy density…

High Energy Physics - Theory · Physics 2009-09-11 John Ellis , A. Ghosh , N. E. Mavromatos

We consider the geometry of anti-de-Sitter (AdS) black hole thermodynamics in four dimensions, where the equation of state in the extended phase space formalism allows explicit comparison with normal fluid systems. We show that for the…

High Energy Physics - Theory · Physics 2021-06-15 Joy Das Bairagya , Kunal Pal , Kuntal Pal , Tapobrata Sarkar

Recent investigations have revealed powerful selection rules for resonant energy transfer between modes of non-linear perturbations in global anti-de Sitter (AdS) space-time. It is likely that these selection rules are due to the highly…

High Energy Physics - Theory · Physics 2015-06-24 Oleg Evnin , Chethan Krishnan

The theories known as doubly special relativity are introduced in order to take into account an observer-independent length scale and the speed of light in the framework of special relativity. These theories can be generally formulated on…

General Relativity and Quantum Cosmology · Physics 2016-03-23 M. A. Gorji , V. Hosseinzadeh , K. Nozari , B. Vakili

We introduce a family of 2D dilaton gravity models with state-dependent constant curvature so that dS$_2$ emerges as an excitation of AdS$_2$. Curiously, the strong coupling region corresponds to the asymptotic region geometrically. Apart…

High Energy Physics - Theory · Physics 2022-12-07 Florian Ecker , Daniel Grumiller , Robert McNees
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