Quantum coherence in neutrino spin-flavor oscillations

• URL: http://arxiv.org/abs/2407.16742v1
• Date: Tue, 23 Jul 2024 17:53:33 GMT
• Title: Quantum coherence in neutrino spin-flavor oscillations
• Authors: Ashutosh Kumar Alok, Trambak Jyoti Chall, Neetu Raj Singh Chundawat, Shireen Gangal, Gaetano Lambiase,
• Abstract summary: Coherence is a fundamental concept in quantum mechanics and can be precisely defined within quantum resource theory. Previous studies on quantum coherence have focused on neutrino flavor oscillations (FO) In this work, we investigate quantum coherence in neutrino SFO with three flavor mixing within the interstellar as well as intergalactic magnetic fields.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Coherence, which represents the superposition of orthogonal states, is a fundamental concept in quantum mechanics and can also be precisely defined within quantum resource theory. Thus exploring quantum coherence in neutrino oscillations can not only help in examining the intrinsic quantum nature but can also explore their potential applications in quantum information technologies. Previous studies on quantum coherence have focused on neutrino flavor oscillations (FO). However, FO imply that neutrinos have mass and this can lead to the generation of a tiny but finite magnetic dipole moment of neutrinos through quantum loop diagrams at higher orders of perturbative expansion of the interaction. This electromagnetic property of neutrinos can induce spin flavor oscillations (SFO) in the presence of an external magnetic field and hence is expected to enrich the study of coherence. In this work, we investigate quantum coherence in neutrino SFO with three flavor mixing within the interstellar as well as intergalactic magnetic fields, quantified by the $l_1$ norm and the relative entropy of coherence, and express these measures in terms of neutrino SFO probabilities. For FO, coherence measures can sustain higher values (say, within 50% of the maximum) over distances of several kilometers, which are relevant for terrestrial experiments like reactor and accelerator neutrinos. However, for SFO, we find that the coherence scale can extend to astrophysical distances, spanning from kiloparsecs to gigaparsecs.

Related papers

• Fluctuation-induced Forces on Nanospheres in External Fields [0.0]
  We analyze the radiative forces between two nanospheres mediated via the quantum and thermal fluctuations of the electromagnetic field in the presence of an external drive. We demonstrate that an external squeezed vacuum state creates similar potentials to a laser, despite its zero average intensity. Considering the nanospheres trapped by optical tweezers, we examine the total interparticle potential as a function of various experimentally relevant parameters.
  arXiv  Detail & Related papers  (2023-11-17T12:51:19Z)
• Bound state of distant photons in waveguide quantum electrodynamics [137.6408511310322]
  Quantum correlations between distant particles remain enigmatic since the birth of quantum mechanics. We predict a novel kind of bound quantum state in the simplest one-dimensional setup of two interacting particles in a box. Such states could be realized in the waveguide quantum electrodynamics platform.
  arXiv  Detail & Related papers  (2023-03-17T09:27:02Z)
• All-Optical Nuclear Quantum Sensing using Nitrogen-Vacancy Centers in Diamond [52.77024349608834]
  Microwave or radio-frequency driving poses a significant limitation for miniaturization, energy-efficiency and non-invasiveness of quantum sensors. We overcome this limitation by demonstrating a purely optical approach to coherent quantum sensing. Our results pave the way for highly compact quantum sensors to be employed for magnetometry or gyroscopy applications.
  arXiv  Detail & Related papers  (2022-12-14T08:34:11Z)
• Trapped-Ion Quantum Simulation of Collective Neutrino Oscillations [55.41644538483948]
  We study strategies to simulate the coherent collective oscillations of a system of N neutrinos in the two-flavor approximation using quantum computation. We find that the gate complexity using second order Trotter- Suzuki formulae scales better with system size than with other decomposition methods such as Quantum Signal Processing.
  arXiv  Detail & Related papers  (2022-07-07T09:39:40Z)
• Role of non-gaussian quantum fluctuations in neutrino entanglement [0.0]
  neutrino-neutrino coherent scattering can give rise to nontrivial quantum entanglement among neutrinos. We observe that the entanglement induced by the coupling leads to strong delocalization in phase-space with largely non-Gaussian quantum fluctuations. The link between the neutrino entanglement and quantum fluctuations is illustrated using the one- and two-neutrino entropy.
  arXiv  Detail & Related papers  (2022-05-19T08:30:58Z)
• Quantum coherence in neutrino oscillation in matter [0.0]
  neutrino oscillation occurs because the quantum states of the produced and detected neutrinos are a coherent superposition of the mass eigenstates. We consider the decoherence due to the neutrino interaction in the material medium with constant density in addition to the decoherence coming from the localization properties.
  arXiv  Detail & Related papers  (2022-04-26T14:19:39Z)
• Relativistic Particle Motion and Quantum Optics in a Weak Gravitational Field [0.0]
  Long-baseline quantum experiments in space make it necessary to better understand the time evolution of relativistic quantum particles in a weakly varying gravitational field. We explain why conventional treatments by traditional quantum optics and atomic physics may become inadequate when faced with issues related to locality, simultaneity, signaling, causality, etc. Adding the effects of gravitation, we are led to Quantum Field Theory in Curved Spacetime (QFTCST) This well-established theory should serve as the canonical reference theory to a large class of proposed space experiments testing the foundations of gravitation and quantum theory.
  arXiv  Detail & Related papers  (2021-06-23T16:32:45Z)
• Simulation of Collective Neutrino Oscillations on a Quantum Computer [117.44028458220427]
  We present the first simulation of a small system of interacting neutrinos using current generation quantum devices. We introduce a strategy to overcome limitations in the natural connectivity of the qubits and use it to track the evolution of entanglement in real-time.
  arXiv  Detail & Related papers  (2021-02-24T20:51:25Z)
• Intrinsic quantum coherence in particle oscillations [0.0]
  In this talk, several inconsistencies of the standard approach to particle oscillations will be explained. The massive neutrino states are interpreted as quasiparticles on a vacuum condensate of "Cooper pairs" of massless neutrinos. The newly defined oscillating particle states are for neutrino oscillations what the Klauder--Sudarshan--Glauber coherent states are for quantum optics.
  arXiv  Detail & Related papers  (2020-12-29T17:35:51Z)
• Spin Entanglement and Magnetic Competition via Long-range Interactions in Spinor Quantum Optical Lattices [62.997667081978825]
  We study the effects of cavity mediated long range magnetic interactions and optical lattices in ultracold matter. We find that global interactions modify the underlying magnetic character of the system while introducing competition scenarios. These allow new alternatives toward the design of robust mechanisms for quantum information purposes.
  arXiv  Detail & Related papers  (2020-11-16T08:03:44Z)
• The Neutrino Casimir Force [77.34726150561087]
  We calculate the neutrino Casimir force between plates, allowing for two different mass eigenstates within the loop. We discuss the possibility of distinguishing whether neutrinos are Majorana or Dirac fermions using these quantum forces.
  arXiv  Detail & Related papers  (2020-03-24T18:00:02Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.