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A uniformly accelerated detector (Unruh detector) in the Minkowski vacuum is excited as if it is exposed to the thermal bath with temperature proportional to its acceleration. In the inertial frame, since both of an excitation and a…

High Energy Physics - Theory · Physics 2016-06-21 S. Iso , K. Yamamoto , S. Zhang

We estimate the transition rates of a uniformly accelerated Unruh-DeWitt detector coupled to a quantum field with reflecting conditions on a boundary plane (a "mirror"). We find that these are essentially indistinguishable from the usual…

General Relativity and Quantum Cosmology · Physics 2012-08-27 Carlo Rovelli , Matteo Smerlak

The Unruh effect predicts that an accelerated observer perceives the Minkowski vacuum as a thermal bath, but its direct observation requires extreme accelerations beyond current experimental reach. Foundational theory [Olson & Ralph, Phys.…

Quantum Physics · Physics 2025-10-29 Zhenghao Luo , Yi Li , Xingyu Zhao , Zihan Xie , Zehua Tian , Yiheng Lin

A new picture of pulsar high-energy emission is proposed that is different from both the traditional polar cap and outer gap models, but combines elements of each. The slot gap model is based on electron acceleration along the edge of the…

Astrophysics · Physics 2009-11-10 Alice Harding , Alexander Muslimov

The principal paradigm for gamma-ray bursts suggest that the prompt transient gamma-ray signal arises from multiple shocks internal to the relativistic expansion. This paper illustrates some properties of diffusive acceleration at…

Astrophysics · Physics 2009-11-10 Matthew G. Baring

The particle detector model consisting of a harmonic oscillator coupled to a scalar field in $1+1$ dimensions is investigated in the inertial case. The same approach is then used in the accelerating case. The absence of radiation from a…

High Energy Physics - Theory · Physics 2009-10-22 S. Massar , R. Parentani , R. Brout

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

Time-resolved photoinduced reflectivity is measured in the spin-density-wave (SDW) phase using itinerant antiferromagnets UMGa$_{5}$ (M=Ni, Pt). For UNiGa$_{5}$ [$T_{N}$=85 K, $Q$=($\pi$,$\pi$,$\pi$)], the relaxation time $\tau$ shows a…

Strongly Correlated Electrons · Physics 2007-05-23 Elbert E. M. Chia , Jian-Xin Zhu , H. J. Lee , Namjung Hur , N. O. Moreno , R. D. Averitt , J. L. Sarrao , A. J. Taylor

The electromagnetic radiation emitted by an accelerated charged particle can be described theoretically as the interaction of the charge with the so-called Fulling-Davies-Unruh thermal bath in the coordinate frame co-accelerated with the…

General Relativity and Quantum Cosmology · Physics 2024-04-02 João P. B. Brito , Luís C. B. Crispino , Atsushi Higuchi

In this paper it is explicitly demonstrated that the energy conservation law is kept when a detector uniformly accelerated in the Minkowski vacuum is excited and emits a particle. This fact had been hidden in conventional approaches in…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Riuji Mochizuki , Takayuki Suga

The emission of radiation by a uniformly accelerated charge is analyzed. According to the standard approach, a radiation is observed whenever there is a relative acceleraion between the charge and the observer. Analyzing difficulties that…

General Relativity and Quantum Cosmology · Physics 2015-06-25 Amso Harpaz , Noam Soker

We demonstrate that the Unruh-DeWitt harmonic-oscillator detectors in (1+1) dimensions derivative-coupled with a massless scalar field can mimic the atom mirrors in free space. Without introducing the Dirichlet boundary condition to the…

High Energy Physics - Theory · Physics 2018-11-30 Shih-Yuin Lin

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

Despite numerous proposals investigating various properties of accelerated detectors in different settings, detecting the Unruh effect remains challenging due to the typically weak signal at achievable accelerations. For an atom with…

Quantum Physics · Physics 2024-10-07 Navdeep Arya , D. Jaffino Stargen , Kinjalk Lochan , Sandeep K. Goyal

A possible solution to the unexplained high intensity hard x-ray (HXR) emission observable during solar flares was investigated via 3D fully relativistic, electromagnetic particle-in-cell (PIC) simulations with realistic ion to electron…

Solar and Stellar Astrophysics · Physics 2014-04-09 R. Pechhacker , D. Tsiklauri

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

We construct the detection rate for particle detectors moving along non-inertial trajectories and interacting with quantum fields. The detectors described here are characterized by the presence of records of observation throughout their…

Quantum Physics · Physics 2015-06-19 Charis Anastopoulos , Ntina Savvidou

The results of modification of the CASCIE code aimed at implementing open boundary conditions are presented. The accelerator section developed at CERN was chosen as a prototype for the structured waveguide under testing. Results of testing…

Accelerator Physics · Physics 2025-05-20 M. I. Ayzatsky

The Tajmar effect is an unexplained acceleration observed by accelerometers and laser gyroscopes close to rotating supercooled rings. The observed ratio between the gyroscope and ring accelerations was 3+/-1.2x10^-8. Here, a new model for…

Cosmology and Nongalactic Astrophysics · Physics 2011-09-21 M. E. McCulloch

Emission of electromagnetic radiation by accelerated particles with electric, toroidal and anapole dipole moments is analyzed. It is shown that ellipticity of the emitted light can be used to differentiate between electric and toroidal…

Classical Physics · Physics 2018-06-20 V. Savinov