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We study the dynamics of quantum coherence under Unruh thermal noise and seek under which condition the coherence can be frozen in a relativistic setting. We find that the frozen condition is either (i) the initial state is prepared as a…

Quantum Physics · Physics 2016-06-08 Jieci Wang , Zehua Tian , Jiliang Jing , Heng Fan

Rings have been found around Chariklo, Haumea and Quaoar, three small objects of the Solar System. All these rings are observed near the second-order spin-orbit resonances (SORs) 1/3 or 5/7 with the central body, suggesting an active…

Earth and Planetary Astrophysics · Physics 2026-04-01 Heikki Salo , Bruno Sicardy

We identify low-acceleration conditions under which the Unruh effect manifests as an early superradiant burst in a collection of excited atoms. The resulting amplified Unruh signal is resolved from the inertial signal both in time and…

Quantum Physics · Physics 2025-10-30 Akhil Deswal , Navdeep Arya , Kinjalk Lochan , Sandeep K. Goyal

Variational quantum computing offers a powerful framework with applications across diverse fields such as quantum chemistry, machine learning, and optimization. However, its scalability is hindered by the exponential concentration of the…

Quantum Physics · Physics 2025-05-05 Giulio Crognaletti , Michele Grossi , Angelo Bassi

Through the AdS/CFT correspondence, we study a uniformly accelerated quark in the vacuum of strongly-coupled conformal field theories in various dimensions, and determine the resulting stochastic fluctuations of the quark trajectory. From…

High Energy Physics - Theory · Physics 2012-09-24 Elena Caceres , Mariano Chernicoff , Alberto Guijosa , Juan F. Pedraza

In a relativistic theory of quantum information, the possible presence of horizons is a complicating feature placing restrictions on the transmission and retrieval of information. We consider two inertial participants communicating via a…

Quantum Physics · Physics 2009-09-28 Kamil Bradler , Patrick Hayden , Prakash Panangaden

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

The Duke storage ring is a dedicated driver for the storage ring based oscillator free-electron lasers (FELs), and the High Intensity Gamma-ray Source (HIGS). It is operated with a beam current ranging from about 1 mA to 100 mA per bunch…

Accelerator Physics · Physics 2013-11-20 Xu Wei , Li Jing-Yi , Huang Sen-Lin , W. Z. Wu , H. Hao , P. Wang , Y. K. Wu

Storage rings have been employed over three decades in various kinds of nuclear and atomic physics experiments with highly charged ions. Storage ring operation and precision physics experiments benefit from the availability of beam cooling…

Nuclear Experiment · Physics 2020-10-28 Markus Steck , Yuri A. Litvinov

Highly magnetized neutron stars exhibit the vacuum non-linear electrodynamics effects, which can be well described using the one-loop effective action for quantum electrodynamics. In this context, we study the propagation and polarization…

General Relativity and Quantum Cosmology · Physics 2024-06-13 Dong-Hoon Kim , Chul Min Kim , Sang Pyo Kim

We derive relations between standard order parameter correlations and the noise correlations in time of flight images, which are valid for systems with long range order as well as low dimensional systems with algebraic decay of…

Other Condensed Matter · Physics 2011-05-31 L. Mathey , A. Vishwanath , E. Altman

The method proposed by us in [1], which eliminates obstacles in the application of electrical methods for studying the spin-Hall effect (SHE) by creating a spin unbalance, which generates a charge unbalance, using the form effect without…

Mesoscale and Nanoscale Physics · Physics 2020-02-11 Yu. N. Chiang , M. O. Dzyuba

In this Letter, we report on the concept and analysis of a low-emittance electron storage ring, in which the electron beams undergo an early-stage self-amplified spontaneous emission lasing process on a turn-by-turn basis. The lasing…

Accelerator Physics · Physics 2023-09-06 Kaishang Zhou , Renkai Li , Zhenghe Bai

We present a new design of highly specialized small storage rings for low energy polarized electron beams. The new design is based on the transparent spin methodology that cancels the spin precession due to the magnetic dipole moment at any…

Accelerator Physics · Physics 2023-08-09 R. Suleiman , V. S. Morozov , Ya. S. Derbenev

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

Over the last few decades, there has been a considerable interest on the infrared behavior of various field theories. In particular, the connections between memory effects, asymptotic symmetries, and soft theorems (the ``infrared…

High Energy Physics - Theory · Physics 2025-12-19 Níckolas de Aguiar Alves , André G. S. Landulfo

We have recently completed the one loop calculation of meson-meson scattering within Chiral Perturbation Theory. Once unitarized, these amplitudes provide simultaneously a remarkable description of the resonance region up to 1.2 GeV as well…

High Energy Physics - Phenomenology · Physics 2009-11-10 J. R. Pelaez

A detector undergoing a huge acceleration measures a thermal distribution with the Unruh temperature out of the Minkowski vacuum. Though such huge accelerations occur naturally in astrophysics and gravity, one may design untraintense laser…

High Energy Physics - Phenomenology · Physics 2017-12-08 Chul Min Kim , Sang Pyo Kim

The gravitational wave strain emitted by a perturbed black hole (BH) ringing down is typically modeled analytically using first-order BH perturbation theory. In this Letter we show that second-order effects are necessary for modeling…

Although the Unruh and Hawking phenomena are commonly linked to field quantization in "accelerated" coordinates or in curved spacetimes, we argue that they are deeply rooted at the classical level. We maintain in particular that these…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Massimo Pauri , Michele Vallisneri