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The Unruh effect states that a uniformly linearly accelerated observer with proper acceleration $a$ experiences the Minkowski vacuum as a thermal state at temperature $T_U=a/(2\pi)$. An observer in uniform circular motion experiences a…

General Relativity and Quantum Cosmology · Physics 2023-06-29 Cameron R. D. Bunney , Jorma Louko

A way to encode acceleration directly into fields has recently being proposed, thus establishing a new kind of fields, the accelerated fields. The definition of accelerated fields points to the quantization of space and time, analogously to…

General Relativity and Quantum Cosmology · Physics 2018-06-15 Lucas Chibebe Céleri , Vasileios Kiosses

We study the phenomenon of Unruh effect in a massless scalar field theory quantized on the light-front in the general light-front frame. We determine the uniformly accelerating coordinates in such a frame and through a direct transformation…

High Energy Physics - Theory · Physics 2008-11-26 Ashok Das , J. Frenkel , Silvana Perez

We calculate the radiation resulting from the Unruh effect for strongly accelerated electrons and show that the photons are created in pairs whose polarizations are maximally entangled. Apart from the photon statistics, this quantum…

Quantum Physics · Physics 2009-11-13 Ralf Schützhold , Gernot Schaller , Dietrich Habs

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 Unruh effect states that a uniformly linearly accelerated observer with proper acceleration $a$ experiences Minkowski vacuum as a thermal state in the temperature $T_{\text{lin}} = a/(2\pi)$, operationally measurable via the detailed…

General Relativity and Quantum Cosmology · Physics 2023-03-28 Steffen Biermann , Sebastian Erne , Cisco Gooding , Jorma Louko , Jörg Schmiedmayer , William G. Unruh , Silke Weinfurtner

We consider a gedanken experiment with a beam of atoms in their ground state that are accelerated through a single-mode microwave cavity. We show that taking into account of the ''counter-rotating'' terms in the interaction Hamiltonian…

A detector undergoing a huge acceleration measures a thermal distribution with the Unruh temperature out of the Minkowski vacuum. Though such huge accelerations occur naturally in astrophysics and gravity, one may design untraintense laser…

High Energy Physics - Phenomenology · Physics 2017-12-08 Chul Min Kim , Sang Pyo Kim

An object moving with the acceleration will change the temperature of environment around it, because of the presence of the Unruh thermal effect. In this work, we investigate the impact of Unruh thermal noise on the quantum-memory-assisted…

General Relativity and Quantum Cosmology · Physics 2024-11-26 Yu-Kun Zhang , Li-Juan Li , Xue-Ke Song , Liu Ye , Dong Wang

The Unruh effect is a well-understood phenomenon, where one considers a vacuum state of a quantum field in Minkowski spacetime, which appears to be thermally populated for a uniformly accelerating Rindler observer. In this article, we…

High Energy Physics - Theory · Physics 2026-04-17 Akhil U Nair , Rakesh K. Jha , Prasant Samantray , Sashideep Gutti

We investigate Brownian motions of a particle coupled to vacuum fluctuations of a quantum field. The Unruh effect predicts that an observer in an accelerated motion sees the Minkowski vacuum as thermally excited. This addresses the problem…

General Relativity and Quantum Cosmology · Physics 2014-07-02 Naritaka Oshita , Kazuhiro Yamamoto , Sen Zhang

We give an interpretation of the temperature in de Sitter universe in terms of a dynamical Unruh effect associated with the Hubble sphere. As with the quantum noise perceived by a uniformly accelerated observer in static space-times,…

General Relativity and Quantum Cosmology · Physics 2011-09-23 R. Casadio , S. Chiodini , A. Orlandi , G. Acquaviva , R. Di Criscienzo , L. Vanzo

Acceleration radiation - or Unruh radiation - the thermal radiation observed by an ever accelerating observer or detector, although having similarities to Hawking radiation, so far has proved extremely challenging to observe experimentally.…

Quantum Physics · Physics 2020-03-05 Brian P. Dolan , Aonghus Hunter-McCabe , Jason Twamley

We make use of the tools of quantum information theory to shed light on the Unruh effect. A modal qubit appears as if subjected to quantum noise that degrades quantum information, as observed in the accelerated reference frame. The Unruh…

Quantum Physics · Physics 2016-07-12 S. Omkar , Subhashish Banerjee , R. Srikanth , Ashutosh Kumar Alok

A great deal of evidence has been mounting over the years showing a deep connection between acceleration, radiation, and the Unruh effect. Indeed, the fact that the Unruh effect can be codified in the Larmor radiation emitted by the charge…

General Relativity and Quantum Cosmology · Physics 2022-09-07 Felipe Portales-Oliva , André G. S. Landulfo

The influence of Unruh effect on the quantum and classical correlation of a quantum entangled state is investigated, when one or two of the observers are accelerated. It is found that the quantum and classical correlation would approach to…

General Relativity and Quantum Cosmology · Physics 2021-12-06 Yue Li , Yongjie Pan , Baocheng Zhang

We study, in the framework of open systems, the entanglement generation of two independent uniformly accelerated atoms in interaction with the vacuum fluctuations of massless scalar fields subjected to a reflecting plane boundary. We…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Jialin Zhang , Hongwei Yu

The Unruh effect is one of the first calculations of what one would see when transiting between an inertial reference frame with its quantum field vacuum state and a non-inertial (specifically, uniformly accelerating) reference frame. The…

General Relativity and Quantum Cosmology · Physics 2023-12-18 Satish Ramakrishna

Macroscopic concepts pertaining to the Unruh effect are elaborated and used to clarify its physical manifestations. Based on a description of the motion of accelerated, spatially extended laboratories in Minkowski space in terms of…

General Relativity and Quantum Cosmology · Physics 2015-12-16 Detlev Buchholz , Rainer Verch

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