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Related papers: Note on the Unruh Effect

200 papers

Whenever an experiment can be described classically, quantum physics must predict the same outcome. Intuitively, there is nothing quantum about an accelerating observer travelling through a vacuum. It is therefore not surprising that many…

Quantum Physics · Physics 2026-03-24 Sara Kanzi , Daniel Hodgson , Almut Beige

We study Unruh phenomena for a qudit detector coupled to a quantized scalar field, comparing its response to that of a standard qubit-based Unruh-DeWitt detector. We show that there are limitations to the utility of the detailed balance…

Quantum Physics · Physics 2024-02-14 Caroline Lima , Everett Patterson , Erickson Tjoa , Robert B. Mann

We give a simple argument to derive the transformation of quantum stochastic calculus formalism between inertial observers, and derive the quantum open system dynamics for a system moving in a vacuum (more generally coherent) quantum field…

Quantum Physics · Physics 2025-10-07 J. E. Gough

We analyse the quantization procedure of the spinor field in the Rindler spacetime, showing the boundary conditions that should be imposed to the field, in order to have a well posed theory. Because of these boundary conditions we argue…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Daniele Oriti

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

Unruh's detector calculation is used to study the effect of the defect angle $\beta$ in a space-time with a cosmic string for both the excitation and deexcitation cases. It is found that a rotating detector results in a non-zero effect for…

General Relativity and Quantum Cosmology · Physics 2015-06-25 A. Bilge , M. Hortacsu , N. Ozdemir

We study, in the framework of open quantum systems, the geometric phase acquired by a uniformly accelerated two-level atom undergoing nonunitary evolution due to its coupling to a bath of fluctuating vacuum electromagnetic fields in the…

Quantum Physics · Physics 2012-03-28 Jiawei Hu , Hongwei Yu

The paradigmatic Unruh radiation is an ideal and simple case of stationary vacuum radiation patterns related to worldlines defined as Frenet-Serret curves. We review the corresponding body of literature as well as the experimental proposals…

High Energy Physics - Theory · Physics 2010-11-15 H. C. Rosu

We study the locality of the acceleration temperature in the Unruh effect. To this end, we develop a new formalism for the modeling of macroscopic irreversible detectors. In particular, the formalism allows for the derivation of the…

Quantum Physics · Physics 2015-05-30 Charis Anastopoulos , Ntina Savvidou

Using the influence functional formalism, the problem of an accelerating detector in the presence of a scalar field in its ground state is considered in Minkowski space. As is known since the work of Unruh, to a quantum mechanical detector…

General Relativity and Quantum Cosmology · Physics 2011-08-04 J. -G. Demers

While the robustness of Hawking radiation in the presence of UV Lorentz breaking is well-established, the Unruh effect has posed a challenge, with a large literature concluding that even the low-energy restoration of Lorentz invariance may…

General Relativity and Quantum Cosmology · Physics 2025-04-23 F. Del Porro , M. Herrero-Valea , S. Liberati , M. Schneider

We study the quantum metrology for a pair of entangled Unruh-Dewitt detectors when one of them is accelerated and coupled to a massless scalar field. Comparing with previous schemes, our model requires only local interaction and avoids the…

Quantum Physics · Physics 2016-06-10 Jieci Wang , Zehua Tian , Jiliang Jing , Heng Fan

The Unruh effect establishes a fundamental equivalence between acceleration and thermality by demonstrating that a uniformly accelerated ground-state detector undergoes excitation as if immersed in a thermal bath. In this paper, we…

General Relativity and Quantum Cosmology · Physics 2025-08-14 Shijing Cheng , Wenting Zhou , Hongwei Yu

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 explore the entanglement dynamics of two detectors undergoing uniform acceleration and circular motion within a massive scalar field, while also investigating the influence of the anti-Unruh effect on entanglement harvesting. Contrary to…

High Energy Physics - Theory · Physics 2024-11-06 Yongjie Pan , Jiatong Yan , Sansheng Yang , Baocheng Zhang

We propose a scalar background in Minkowski spacetime imparting constant proper acceleration to a classical particle. In contrast to the case of a constant electric field the proposed scalar potential does not create particle-antiparticle…

High Energy Physics - Theory · Physics 2009-11-07 A. M. Fedotov , N. B. Narozhny , V. D. Mur , V. A. Belinski

We study the detailed balance temperatures recorded along all classes of stationary, uniformly accelerated worldlines in four-dimensional Minkowski spacetime, namely along (i) linear uniform acceleration, (ii) cusped, (iii) circular, (iv)…

General Relativity and Quantum Cosmology · Physics 2020-06-17 Michael Good , Benito A. Juárez-Aubry , Dimitris Moustos , Maksat Temirkhan

The Unruh effect predicts a thermal response for an accelerated detector moving through the vacuum. Here we propose an interferometric scheme to observe an analogue of the circular Unruh effect using a localized laser coupled to a…

General Relativity and Quantum Cosmology · Physics 2020-12-22 Cisco Gooding , Steffen Biermann , Sebastian Erne , Jorma Louko , William G. Unruh , Joerg Schmiedmayer , Silke Weinfurtner

In analyzing the nature of thermal radiance experienced by an accelerated observer (Unruh effect), an eternal black hole (Hawking effect) and in certain types of cosmological expansion, one of us proposed a unifying viewpoint that these can…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Alpan Raval , B. L. Hu , Don Koks

We compute the entropy of a Rindler particle-detector (observer) in the presence of a quantum field in the Minkowski vacuum state; due to the Unruh effect, the observer is immersed in a thermal bath at a temperature proportional to its…

General Relativity and Quantum Cosmology · Physics 2015-06-16 O. Brauer , E. Kirchuk , L. Raviola , M. Socolovsky