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We consider inertial and accelerated Unruh-DeWitt detectors moving in a background thermal bath and calculate their excitation rates. It is shown that for fast moving detectors such a thermal bath does not affect substantially the…

General Relativity and Quantum Cosmology · Physics 2009-10-22 Sandro S. Costa , George E. A. Matsas

Costa and Matsas (gr-qc/9412030) claimed in their recent paper that a thermal bath does not affect substantially the transition probability for fast moving inertial Unruh detector. It is shown that their claim holds only for small $\beta…

High Energy Physics - Theory · Physics 2016-09-06 D. K. Park , H. W. Lee , Y. S. Myung , Jin Young Kim

We discuss the influence of the background thermal bath on the depolarization of electrons in high-energy storage rings, and on the photon emission associated with the spin flip. We focus, in particular, on electrons at LEP. We show that in…

High Energy Physics - Phenomenology · Physics 2009-10-30 Antonio C. C. Guimaraes , George E. A. Matsas , Daniel A. T. Vanzella

We explore the effects of different boundary conditions and coupling schemes on the response of a particle detector undergoing uniform acceleration in optical cavities. We analyze the thermalization properties of the accelerated detector…

Quantum Physics · Physics 2013-09-23 Wilson G. Brenna , Eric G. Brown , Robert B. Mann , Eduardo Martin-Martinez

We quantify the quantum correlations between two accelerated detectors coupled to a scalar field in a cavity. It has been realized that an accelerated detector will experience a thermal bath, which is termed the Unruh effect. We examine the…

Quantum Physics · Physics 2021-12-22 He Wang , Jin Wang

We study the Anti-Unruh effect in general stationary scenarios. We find that, for accelerated trajectories, a particle detector coupled to a KMS state of a quantum field can cool down (click less often) as the KMS temperature increases.…

Quantum Physics · Physics 2017-01-03 Luis J. Garay , Eduardo Martin-Martinez , Jose de Ramon

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 recent work by M.H.Lynch, E.Cohen, Y.Hadad and I.Kaminer (LCHK), a modified model of the Unruh-DeWitt quantum detector, coupled to a 4-vector current, has been proposed to examine the radiation emitted by high energy positrons channeled…

General Relativity and Quantum Cosmology · Physics 2024-09-20 Yefim S. Levin

The Unruh effect -- according to which linearly accelerated observers with proper acceleration a= constant in the (no-particle) vacuum state of inertial observers experience a thermal bath of particles with temperature $T_U = a \hbar / (2…

General Relativity and Quantum Cosmology · Physics 2017-04-26 Gabriel Cozzella , Andre G. S. Landulfo , George E. A. Matsas , Daniel A. T. Vanzella

It is shown that the Unruh effect, i.e. the increase in temperature indicated by a uniformly accelerated thermometer in an inertial vacuum state of a quantum field, cannot be interpreted as the result of an exchange of heat with a…

General Relativity and Quantum Cosmology · Physics 2016-03-08 Detlev Buchholz , Rainer Verch

We study the influence of the thermal background on the existence of the anti-Unruh effect. For the massless scalar field, we present that the anti-Unruh effect can appear when the detector is accelerated in the thermal field, which is…

High Energy Physics - Theory · Physics 2022-05-30 Yongjie Pan , Baocheng Zhang

Recently, the inverse $\beta$-decay rate calculated with respect to uniformly accelerated observers (experiencing the Unruh thermal bath) was revisited. Concerns have been raised regarding the compatibility of inertial and accelerated…

General Relativity and Quantum Cosmology · Physics 2018-06-06 Gabriel Cozzella , Stephen A. Fulling , Andre G. S. Landulfo , George E. A. Matsas , Daniel A. T. Vanzella

The Unruh effect, thereby an ideally accelerated quantum detector is predicted to absorb thermalized virtual photons and re-emit real photons, is significantly extended for laboratory accessible configurations. Using modern influence…

General Relativity and Quantum Cosmology · Physics 2022-12-27 Charles H. -T. Wang , Gianluca Gregori , Robert Bingham , Yakubu Adamu , Bethel N. Eneh , Maé C. Rodriguez , Sarah-Jane Twigg

We make a detailed comparison between entanglement harvesting for uniformly accelerated detectors in vacuum and static ones in a thermal bath at the Unruh temperature and find that, for a small energy gap relative to the Heisenberg energy…

Quantum Physics · Physics 2023-02-27 Zhihong Liu , Jialin Zhang , Hongwei Yu

Derived from semi-classical quantum field theory in curved spacetime, Unruh effect was known as a quantum effect. We find that there does exist a classical correspondence of this effect in electrodynamics. The thermal nature of the vacuum…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Shih-Yuin Lin

In contrast to recent criticism we undertake to show that the notion of Unruh temperature describes a real thermal property of the vacuum if viewed from an accelerated reference frame. We embed our investigation in a more general analysis…

General Relativity and Quantum Cosmology · Physics 2013-11-08 Manfred Requardt

We treat an Unruh-DeWitt detector as an open quantum system and evaluate the response of a uniformly accelerated detector: (i) interacting locally with the derivatives of a massless scalar field and (ii) linearly coupled to an…

General Relativity and Quantum Cosmology · Physics 2018-09-17 Dimitris Moustos

In this note, the non-relativistic Doppler spectrum of the Unruh radiation from an accelerating mass is determined. Additionally, the scattering of thermal bath photons off an accelerating electron in an electromagnetic field, as seen by a…

General Physics · Physics 2017-11-29 Jeff S. Lee , Gerald B. Cleaver , Felix Yu

The Unruh effect is the phenomenon that accelerated observers detect particles even when inertial observers experience the vacuum state. In particular, uniformly accelerated observers are predicted to measure thermal radiation that is…

Quantum Physics · Physics 2020-08-06 Luis C. Barbado , Esteban Castro-Ruiz , Luca Apadula , Časlav Brukner

We show under what conditions an accelerated detector (e.g., an atom/ion/molecule) thermalizes while interacting with the vacuum state of a quantum field in a setup where the detector's acceleration alternates sign across multiple optical…

Quantum Physics · Physics 2021-11-09 Silas Vriend , Daniel Grimmer , Eduardo Martín-Martínez
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