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One of the simplest ways to account for the observed W-boson mass shift is to introduce the $SU(2)_L$ triplet Higgs boson with zero hypercharge, whose vacuum expectation value is about 3 GeV. If the triplet is heavy enough at…

High Energy Physics - Phenomenology · Physics 2023-01-19 Weikang Lin , Tsutomu T. Yanagida , Norimi Yokozaki

The high-temperature limit of Standard Model generated by the contractions of gauge groups is discussed. Contraction parameters of gauge group $SU(2)$ of Electroweak Model and gauge group $SU(3)$ of Quantum Chromodynamics are taken…

General Physics · Physics 2016-04-13 Nikolai A. Gromov

The infrared behaviour of the standard model at finite temperature is determined by the confining phase of the SU(2)-Higgs model in three dimensions. Due to the Landau singularity of the three-dimensional gauge theory the perturbative…

High Energy Physics - Phenomenology · Physics 2009-10-28 W. Buchmuller , Z. Fodor

We investigate the transition rates of uniformly accelerated two-level single and entangled atomic systems in empty space as well as inside a cavity. We take into account the interaction between the systems and a massless scalar field from…

Quantum Physics · Physics 2023-10-26 Arnab Mukherjee , Sunandan Gangopadhyay , A. S. Majumdar

Motivated by the pressing problem of the ``little hierarchies'', the possibility of realizing a consistent model of Electroweak Symmetry Breaking via the so-called ``Gauge-Higgs Unification Mechanism'' is discussed. We identify a class of 6…

High Energy Physics - Theory · Physics 2007-05-23 Andrea Wulzer

In an FEL the electrons traveling through the undulator are surrounded in their own reference frame by Unruh radiation at a temperature of order 8,000 Kelvin. When these virtual photons scatter from the beam electrons they become real and…

General Physics · Physics 2018-06-05 Adrian Melissinos

An electroweak model of SU(3) $\times$ U(1) gauge group is studied. {}From the group theoretical constraint, the symmetry breaking of this model to the standard model occurs at 1.7~TeV or lower. Hence the mass of the new neutral gauge boson…

High Energy Physics - Phenomenology · Physics 2011-07-19 Daniel Ng

This article investigates the Schwinger effect for fermions with background electric and magnetic fields of constant strengths from the point of view of a uniformly accelerated or the Rindler observer. The Dirac equation is solved in a…

High Energy Physics - Theory · Physics 2022-12-16 Shagun Kaushal

We present a theoretical study of how a spatially-varying quasiparticle velocity in honeycomb lattices, achievable using strained graphene or in engineered cold-atom optical lattices that have a spatial dependence to the local tunneling…

Mesoscale and Nanoscale Physics · Physics 2023-07-05 Anshuman Bhardwaj , Daniel E. Sheehy

The Unruh effect is essential to keep the consistency of quantum field theory in inertial and uniformly accelerated frames. Thus, the Unruh effect must be considered as well tested as quantum field theory itself. In spite of it, it would be…

General Relativity and Quantum Cosmology · Physics 2018-08-29 Gabriel Cozzella , Andre G. S. Landulfo , George E. A. Matsas , Daniel A. T. Vanzella

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

We propose a supersymmetric hypercolor SU(3)_H gauge theory interacting strongly at the grand unification scale, in which the hyperquark condensation breaks SU(5)_GUT down to SU(3)_C x SU(2)_L without unbroken U(1)_Y at the classical level.…

High Energy Physics - Phenomenology · Physics 2009-02-19 T. Hotta , K. -I. Izawa , T. Yanagida

We report on the progress in the study of a five-dimensional SU(2) Gauge-Higgs Unification model. In this non-perturbative study, the Higgs mechanism is triggered by the spontaneous breaking of a global symmetry. In the same region of the…

High Energy Physics - Lattice · Physics 2016-09-27 Maurizio Alberti , Nikos Irges , Francesco Knechtli , Graham Moir

The Unruh effect remains a central topic in quantum field theory, although its direct experimental verification continues to be challenging. Recent efforts have therefore focused on indirect detection strategies in which the Unruh effect…

General Relativity and Quantum Cosmology · Physics 2026-01-01 Manuel de Atocha Rodríguez Fernández , Alexander I. Nesterov , Gennady P. Berman , C. Moreno-González

This paper proposes a novel quantum effect wherein particle spectra show extra broadening due to local short-time acceleration (as well as in a deSitter spacetime background). This effect provides a simple interpretation for the…

General Relativity and Quantum Cosmology · Physics 2026-02-17 M. J. Luo

We show that uniformly accelerated detectors can display genuinely thermal features even if the Kubo-Martin-Schwinger (KMS) condition fails to hold. These features include satisfying thermal detailed balance and having a Planckian response…

Quantum Physics · Physics 2019-07-31 Raul Carballo-Rubio , Luis J. Garay , Eduardo Martin-Martinez , Jose de Ramon

We propose a new type of the Unruh-DeWitt detector which measures the decoherence of the reduced density matrix of the detector interacting with the massless quantum scalar field. We find that the decoherence decay rates are different in…

General Relativity and Quantum Cosmology · Physics 2020-11-18 Alexander I Nesterov , Gennady P Berman , Manuel A Rodríguez Fernández , Xidi Wang

In this article we have investigated the possibility of Bose-Einstein Condensation (BEC) in a frame undergoing uniform acceleration or in other wards, in Rindler space associated with the uniformly accelerated frame. We have followed a very…

General Relativity and Quantum Cosmology · Physics 2017-11-13 Sanchita Das , Somenath Chakraborty

An accelerated particle sees the Minkowski vacuum as thermally excited, which is called the Unruh effect. Due to an interaction with the thermal bath, the particle moves stochastically like the Brownian motion in a heat bath. It has been…

High Energy Physics - Phenomenology · Physics 2011-02-24 Satoshi Iso , Yasuhiro Yamamoto , Sen Zhang

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
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