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The Unruh effect predicts an astonishing phenomenon that an accelerated detector would detect counts despite being in a quantum field vacuum in the rest frame. Since the required detector acceleration for its direct observation is…

Quantum Physics · Physics 2025-10-29 Xu Cheng , Yue Li , Zehua Tian , Xingyu Zhao , Xi Qin , Yiheng Lin

We review some quantum electrodynamical effects related to the uniform acceleration of atoms in vacuum. After discussing the energy level shifts of a uniformly accelerated atom in vacuum, we investigate the atom-wall Casimir-Polder force…

Quantum Physics · Physics 2014-04-10 Jamir Marino , Antonio Noto , Roberto Passante , Lucia Rizzuto , Salvatore Spagnolo

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 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, in the framework of open quantum systems, the entanglement dynamics for a quantum system composed of two uniformly accelerated Unruh-Dewitt detectors interacting with a bath of massive scalar fields in the Minkowski vacuum. We…

General Relativity and Quantum Cosmology · Physics 2021-09-20 Yuebing Zhou , Jiawei Hu , Hongwei Yu

Fulling-Davies-Unruh effect contains great amount of theoretical importance in various branches of physics. Requirement of very high acceleration hinders its experimental evidence. We put forward an idea to experimentally probe this effect…

Quantum Physics · Physics 2025-04-03 Dipankar Barman , Debasish Ghosh , Bibhas Ranjan Majhi

In this work, we propose to investigate the information behavior of quantum systems through accelerated detectors quadratically coupled with a massless scalar field. In addition, we made detailed comparisons with the case of linear…

High Energy Physics - Theory · Physics 2025-08-26 P. H. M. Barros , P. R. S. Carvalho , H. A. S. Costa

We study the influence of the environment-induced interatomic interaction, which is usually neglected, on the entanglement dynamics of two uniformly accelerated atoms coupled with fluctuating massless scalar fields in the Minkowski vacuum.…

Quantum Physics · Physics 2022-02-22 Ying Chen , Jiawei Hu , Hongwei Yu

The master equation describing the completely positive time evolution of a uniformly accelerated two-level system in weak interaction with a scalar field in the Minkowski vacuum is derived and explicitly solved. It encodes the well known…

Quantum Physics · Physics 2007-05-23 F. Benatti , R. Floreanini

We present a method for relating the transition rate of an accelerated Unruh-deWitt detector to the rate of the same detector when stationary in Minkowski space. Furthermore, we show that when using the detector as a model for decay, its…

General Relativity and Quantum Cosmology · Physics 2025-12-02 Wim Beenakker , David Venhoek

We revisit the Unruh effect to investigate how finite acceleration would affect a scalar condensate. We discuss a negative thermal-like correction associated with acceleration. From the correspondence between thermo-field dynamics and…

High Energy Physics - Theory · Physics 2015-12-22 Sanjin Benic , Kenji Fukushima

Detecting thermal Unruh radiation from accelerated electrons has presented a formidable challenge due not only to technical difficulties but also for lack of conceptual clarity about what is actually seen by a laboratory observer. We give a…

General Relativity and Quantum Cosmology · Physics 2024-05-09 Gianluca Gregori , Giacomo Marocco , Subir Sarkar , Robert Bingham , Charles Wang

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

We consider the response of an Unruh detector to scalar fields in an expanding space-time. When combining transition elements of the scalar field Hamiltonian with the interaction operator of detector and field, one finds at second order in…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Bjorn Garbrecht , Tomislav Prokopec

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

We investigated the influence of the massive scalar field on the information degradation concerning the Unruh-DeWitt (UDW) detectors. In this conjecture, we adopted a system with a finite and large interaction time. To accomplish our…

High Energy Physics - Theory · Physics 2025-05-21 P. H. M. Barros , F. C. E. Lima , C. A. S. Almeida , H. A. S. Costa

A new theoretical framework to describe the experimental advances in electro-optic detection of broadband quantum states, specifically the quantum vacuum, is devised. By making use of fundamental concepts from quantum field theory on…

We study a two-level atom in interaction with a real massless scalar quantum field in a spacetime with a reflecting boundary. The presence of the boundary modifies the quantum fluctuations of the scalar field, which in turn modifies the…

General Relativity and Quantum Cosmology · Physics 2014-11-17 Hongwei Yu , Shizhuan Lu

In this work, we investigate the interaction between a uniformly accelerated single qubit and a fermionic spinor field. Here we consider both the massless and the massive fermionic spinor fields. The qubit-field interaction occurs over a…

Quantum Physics · Physics 2025-12-11 Arnab Mukherjee , Sunandan Gangopadhyay , P. H. M. Barros , H. A. S. Costa

Unruh-deWitt detectors have been utilised widely as probes for quantum particles, entanglement and spacetime curvature. Here, we extend the standard treatment of an Unruh-deWitt detector interacting with a massless, scalar field to include…

Quantum Physics · Physics 2023-03-13 Joshua Foo , Sho Onoe , Magdalena Zych