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Related papers: Unruh Effect in the General Light-Front Frame

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We discuss different physical effects related to the uniform acceleration of atoms in vacuum, in the framework of quantum electrodynamics. We first investigate the van der Waals/Casimir-Polder dispersion and resonance interactions between…

Quantum Physics · Physics 2017-08-24 M. Lattuca , J. Marino , A. Noto , R. Passante , L. Rizzuto , S. Spagnolo , W. Zhou

We investigate the behaviour of quantum fields in null-shifted Rindler wedges and analyse the particle spectra perceived by accelerated observers associated with these null deformations. Unlike the standard Unruh effect, our analysis…

High Energy Physics - Theory · Physics 2026-04-17 Rakesh K Jha

In the Unruh effect an observer with constant acceleration perceives the quantum vacuum as thermal radiation. The Unruh effect has been believed to be a pure quantum phenomenon, but here we show theoretically how the effect arises from the…

General Relativity and Quantum Cosmology · Physics 2018-08-22 Ulf Leonhardt , Itay Griniasty , Sander Wildeman , Emmanuel Fort , Mathias Fink

The study of the Unruh effect naturally raises the interest for a deeper understanding of the analogy between temperature and acceleration. A recurring question is whether an accelerated frame can be distinguished from an inertial thermal…

High Energy Physics - Theory · Physics 2020-07-01 A. P. C. M. Lima , G. Alencar , R. R. Landim

In this work, the notion of spacetime of maximal proper acceleration is motivated as a weak form to implement general covariance and a generalized form of Einstein's equivalence principle from a physical point of view and the fundamental…

General Relativity and Quantum Cosmology · Physics 2025-08-29 Ricardo Gallego Torromé

An equivalence is demonstrated, by an explicit first order quantum calculation, between the Minkowski photon emission rate in the inertial frame for an accelerating charge moving on a Rindler trajectory with additional transverse drift…

General Relativity and Quantum Cosmology · Physics 2020-03-25 Kajol Paithankar , Sanved Kolekar

A uniformly accelerated atom in an inertial vacuum generally thermalizes and reaches a Gibbs state. This phenomenon is commonly known as the Unruh effect. Here, we show that the situation is entirely different for the many-atoms problem. In…

Quantum Physics · Physics 2025-09-09 Saptarshi Saha , Chiranjeeb Singha , Pragna Das , Arpan Chatterjee

We study memory effects as information backflow for an accelerating two-level detector weakly interacting with a scalar field in the Minkowski vacuum. This is the framework of the well-known Unruh effect: the detector behaves as if it were…

Quantum Physics · Physics 2020-02-05 Boris Sokolov , Jorma Louko , Sabrina Maniscalco , Iiro Vilja

The existence of Davies-Unruh temperature in a uniformly accelerated frame shows that quantum fluctuations of the inertial vacuum state appears as thermal fluctuations in the accelerated frame. Hence thermodynamic experiments cannot…

General Relativity and Quantum Cosmology · Physics 2018-06-20 Sanved Kolekar , T. Padmanabhan

We aim to study the thermodynamic properties of the spherically symmetric reference frames with uniform acceleration, including the spherically symmetric generalization of Rindler reference frame and the new kind of uniformly accelerated…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Chao-Guang Huang , Jia-Rui Sun

It is well known that Minkowski vacuum appears as a thermal bath in the Rindler spacetime when the modes on the left wedge are traced out. We introduce the concept of a Rindler-Rindler spacetime, obtained by a further coordinate…

General Relativity and Quantum Cosmology · Physics 2018-06-20 Sanved Kolekar , T. Padmanabhan

We discuss the emission of pairs of photons by charges with generic worldlines in the Minkowski vacuum from the viewpoint of inertial observers and interpret them from the perspective of Rindler observers. We show that the emission of pairs…

General Relativity and Quantum Cosmology · Physics 2026-01-27 Juan V. O. Pêgas , Robert Bingham , Gianluca Gregori , George E. A. Matsas

The Unruh effect refers to the thermal fluctuations a detector experiences while undergoing linear motion with uniform acceleration in a Minkowski vacuum. This thermality can be demonstrated by tracing the vacuum state of the field over the…

General Relativity and Quantum Cosmology · Physics 2013-12-10 Jason Doukas , Shih-Yuin Lin , B. L. Hu , Robert B. Mann

We argue that a uniform acceleration of matter produces an effect similar to cooling, thus leading, in particular, to the enhancement effect of spontaneous symmetry breaking. This conclusion is supported by the observation by Unruh and…

High Energy Physics - Theory · Physics 2025-01-28 Maxim N. Chernodub

We generalize the vacuum-Unruh effect to arbitrary excited states in the Fock space and find that the Unruh mode at the horizon induces coherent excitation on the canonical background ensemble measured by an accelerated observer. When there…

General Relativity and Quantum Cosmology · Physics 2023-03-29 Angela Chen

The interplay between acceleration and radiation harbors remarkable and surprising consequences. One of the most striking is that the Larmor radiation emitted by a charge can be seen as a consequence of the Unruh thermal bath. Indeed, this…

General Relativity and Quantum Cosmology · Physics 2019-08-28 Andre G. S. Landulfo , Stephen A. Fulling , George E. A. Matsas

The thermal radiance felt by a uniformly accelerated detector/oscillator/atom--the Unruh effect-- is often mistaken to be some emitted radiation detectable by an observer/probe/sensor. Here we show by an explicit calculation of the energy…

Quantum Physics · Physics 2007-05-23 B. L. Hu , Alpan Raval

It is common to use Galilean rotational transformation to investigate the Unruh effect for uniformly rotating observers. However, the rotating observer in this subject is an eccentric observer while Galilean rotational transformation is…

General Relativity and Quantum Cosmology · Physics 2017-11-28 H. Ramezani-Aval

It has been known for some time that the classical concept of radiation is not covariant: for uniformly accelerated particles, it depends on the state of motion of the observer relative to the particle emitting it. Moreover, recent…

General Relativity and Quantum Cosmology · Physics 2024-06-27 Felipe Ignacio Portales Oliva

In this paper we analyze the interaction of a uniformly accelerated detector with a quantum field in (3+1)D spacetime, aiming at the issue of how kinematics can render vacuum fluctuations the appearance of thermal radiance in the detector…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Shih-Yuin Lin , B. L. Hu
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