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We consider hadron production in high energy collisions as an Unruh radiation phenomenon. This mechanism describes the production pattern of newly formed hadrons and is directly applicable at vanishing baryochemical potential, mu = 0. It…

High Energy Physics - Phenomenology · Physics 2014-09-11 Paolo Castorina , Alfredo Iorio , Helmut Satz

We propose and study methods for detecting the Unruh effect in a Bose-Einstein condensate. The Bogoliubov vacuum of a Bose-Einstein condensate is used here to simulate a scalar field-theory, and accelerated atom dots or optical lattices as…

Quantum Physics · Physics 2009-11-13 A. Retzker , J. I. Cirac , M. B. Plenio , B. Reznik

In this report, the impact of the Casimir effect in the near-nuclear environment on electrons, in particular of the K-shell, is investigated. It has long been known that the experimentally measured binding energies of the inner electrons,…

Atomic Physics · Physics 2024-02-06 Frank Kowol

We investigate the transition probability rate of a Unruh-DeWitt (UD) detector interacting with massless scalar field for a finite duration of proper time, $T$, of the detector. For a UD detector moving at a uniform acceleration, $a$, we…

General Relativity and Quantum Cosmology · Physics 2026-04-09 D. Jaffino Stargen

This article is motivated by the observation, that calculations of the Unruh effect based on idealized particle detectors are usually made in a way that involves integrations along the {\em entire} detector trajectory up to the infinitely…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Sebastian Schlicht

Motivated by the challenge of identifying intruder ions in a cold ion crystal, we investigate calorimetry from emitted fluorescence light. Under continuous Doppler cooling, the ion crystal reaches a temperature equilibrium with a fixed…

The virialization shock around an X-ray cluster primarily heats the ions, since they carry most of the kinetic energy of the infalling gas. Subsequently, the ions share their thermal energy with the electrons through Coulomb collisions. We…

Astrophysics · Physics 2009-10-30 David Fox , Abraham Loeb

Molecular organic materials offer the promise of novel electronic devices but also present challenges for understanding charge transport in narrow band systems. Low temperature studies elucidate fundamental transport processes. We report…

Materials Science · Physics 2009-11-10 V. Y. Butko , J. C. Lashley , A. P. Ramirez

The Hawking effect and the Unruh effect are two of the most important predictions in the theoretical physics of the last quarter of the 20th century. In parallel to the theoretical investigations there is great interest in the possibility…

General Relativity and Quantum Cosmology · Physics 2008-02-03 H. C. Rosu

The Unruh effect is a surprising prediction of quantum field theory that asserts accelerating observers perceive a thermal spectrum of particles with a temperature proportional to their acceleration. However, it has recently been shown that…

General Relativity and Quantum Cosmology · Physics 2020-09-02 Laura J. Henderson , Robie A. Hennigar , Robert B. Mann , Alexander R. H. Smith , Jialin Zhang

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

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

D. J. Antonio et al. report an x-ray diffraction experiment on uranium dioxide at high-magnetic field and low temperature. The authors have apparently not realized that the diffraction data actually shows unambiguously the presence of a…

Materials Science · Physics 2021-04-14 G. H. Lander , R. Caciuffo

We consider ionized hydrogen-like atoms accelerated by an external electric field to detect Unruh radiation. By applying quantum field theory in the Rindler spacetime, we show that the first-quantized description for hydrogen-like atoms…

High Energy Physics - Theory · Physics 2023-08-24 Riccardo Falcone , Claudio Conti

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 the resonance interaction between two uniformly accelerated identical atoms, one excited and the other in the ground state, prepared in a correlated (symmetric or antisymmetric) state and interacting with the scalar field or the…

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

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 study, we revisit the Fulling-Davies-Unruh effect in the context of two-level single and entangled atomic systems that are static in a thermal bath. We consider the interaction between the systems and a massless scalar field,…

Quantum Physics · Physics 2025-01-10 Arnab Mukherjee , Sunandan Gangopadhyay , Archan S. Majumdar

In elemental Bismuth, 10$^5$ atoms share a single itinerant electron. Therefore, a moderate magnetic field can confine electrons to the lowest Landau level. We report on the first study of metallic thermoelectricity in this regime. The main…

Strongly Correlated Electrons · Physics 2009-11-11 Kamran Behnia , Marie-Aude Measson , Yakov Kopelevich