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Decoherence and dissipation in quantum systems has been studied extensively in the context of Quantum Brownian Motion. Effective decoherence in coarse grained quantum systems has been a central issue in recent efforts by Zurek and by Hartle…

High Energy Physics - Theory · Physics 2007-05-23 Michael R. Gallis

We revisit the topic of invisible neutrino decay in the precision cosmological context, via a first-principles approach to understanding the cosmic microwave background and large-scale structure phenomenology of such a non-standard physics…

Cosmology and Nongalactic Astrophysics · Physics 2021-04-14 Gabriela Barenboim , Joe Zhiyu Chen , Steen Hannestad , Isabel M. Oldengott , Thomas Tram , Yvonne Y. Y. Wong

We assess the potential of neutrino telescopes to discover quantum-gravity-induced decoherence effects modeled in the open-quantum system framework and with arbitrary numbers of active and dark fermion generations, such as particle dark…

High Energy Physics - Phenomenology · Physics 2025-01-23 Alba Domi , Thomas Eberl , Dominik Hellmann , Sara Krieg , Heinrich Päs

The neutrino oscillation patterns can be modified by neutrino interactions with external environments including electromagnetic fields that can influence on neutrinos in the case neutrinos have nonzero electromagnetic properties [1]. The…

High Energy Physics - Phenomenology · Physics 2020-01-01 Konstantin Stankevich , Alexander Studenikin

In this work we analyze quantum decoherence in neutrino oscillations considering the Open Quantum System framework and oscillations through matter for three neutrino families. Taking DUNE as a case study we performed sensitivity analyses…

High Energy Physics - Phenomenology · Physics 2019-09-25 G. Balieiro Gomes , D. V. Forero , M. M. Guzzo , P. C. de Holanda , R. L. N. Oliveira

In a previous paper, we gave a new theoretical framework in which three neutrino mixing in matter are discussed. Rigorous analytical solutions are obtained. In present paper an approximate method is developed for studying three flavor…

High Energy Physics - Phenomenology · Physics 2007-05-23 G. Cheng

In this paper, we show that a Gaussian averaged neutrino oscillation model is equivalent to a neutrino decoherence model. Without loss of generality, the analysis is performed with two neutrino flavors. We also estimate the damping (or…

High Energy Physics - Phenomenology · Physics 2009-10-31 Tommy Ohlsson

We investigate the meaning of gravity-induced decoherence in quantum theory, known as `intrinsic' or `fundamental' decoherence in the literature. We explore a range of issues relevant to this problem, including the meaning of modified…

General Relativity and Quantum Cosmology · Physics 2008-11-26 C. Anastopoulos , B. L. Hu

One of the biggest problems faced by those attempting to combine quantum theory and general relativity is the experimental inaccessibility of the unification scale. In this paper we show how incoherent conformal waves in the gravitational…

Quantum Physics · Physics 2015-06-26 W. L. Power , I. C. Percival

It has been claimed that wave packets must be covariant and also that decohered neutrino oscillations are always revived during measurement. These conjectures are supported by general arguments which are not specific to the electroweak…

High Energy Physics - Phenomenology · Physics 2019-02-13 Emilio Ciuffoli , Jarah Evslin , Hosam Mohammed , Yao Zhou

It has been speculated that quantum gravity might induce a "foamy" space-time structure at small scales, randomly perturbing the propagation phases of free-streaming particles (such as kaons, neutrons, or neutrinos). Particle interferometry…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. L. Fogli , E. Lisi , A. Marrone , D. Montanino , A. Palazzo

We propose an explanation for the LSND anomaly based on quantum decoherence, postulating an exponential behavior for the decoherence parameters as a function of the neutrino energy. Within this ansatz decoherence effects are suppressed for…

High Energy Physics - Phenomenology · Physics 2015-08-27 Pouya Bakhti , Yasaman Farzan , Thomas Schwetz

Neutrinos undergoing stochastic perturbations as they propagate experience decoherence, damping neutrino oscillations over distance. Such perturbations may result from fluctuations in space-time itself if gravity is a quantum force,…

High Energy Physics - Phenomenology · Physics 2022-01-19 Thomas Stuttard , Mikkel Jensen

We investigate the cosmological implications of modified gravities induced by the quantum fluctuations of the gravitational metric. If the metric can be decomposed as the sum of the classical and of a fluctuating part, of quantum origin,…

General Relativity and Quantum Cosmology · Physics 2016-08-02 Xing Liu , Tiberiu Harko , Shi-Dong Liang

The question of whether unobserved short-wavelength modes of the gravitational field can induce decoherence in the long-wavelength modes (``the decoherence of spacetime'') is addressed using a simplified model of perturbative general…

General Relativity and Quantum Cosmology · Physics 2009-10-28 John T. Whelan

We explore the impact of strong gravitational fields on neutrino decoherence. To this aim, we employ the density matrix formalism to describe the propagation of neutrino wave packets in curved spacetime. By considering Gaussian wave…

High Energy Physics - Phenomenology · Physics 2019-12-18 Amélie Chatelain , Maria Cristina Volpe

Any quantum system interacting with a complex environment undergoes decoherence. Empty space is filled with vacuum energy due to matter fields in their ground state and represents an underlying environment that any quantum particle has to…

General Relativity and Quantum Cosmology · Physics 2009-08-26 Paolo M. Bonifacio

One of the biggest unsolved problems in physics is the unification of quantum mechanics and general relativity. The lack of experimental guidance has made the issue extremely evasive, though various attempts have been made to relate the…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Charles H. -T. Wang , Robert Bingham , J. Tito Mendonca

Or: ``How to generate an ensemble in a single event?'' Following recent work on entropy in strong interactions, I explain the concept of environment-induced quantum decoherence in elementary quantum mechanics. The classically chaotic…

High Energy Physics - Phenomenology · Physics 2011-08-04 Hans-Thomas Elze

In this paper, we have studied the impact of two different formalisms of quantum decoherence in determining the sensitivities of the two future long-baseline experiments DUNE and P2SO. In Formalism-A, we will assume that the decoherence…

High Energy Physics - Phenomenology · Physics 2026-04-27 Rudra Majhi , Koushik Pal , Monojit Ghosh , Rukmani Mohanta