Influence of gravity on the quantum speed limit in neutrino oscillations

Abstract

The quantum speed limits (QSLs) determine the minimal amount of time required for a quantum system to evolve from an initial to a final state. We investigate QSLs for the unitary evolution of the neutrino-antineutrino system in the presence of a gravitational field. It is known that the transition probabilities between neutrino and antineutrino in the framework of one and two flavors depend on the strength of the gravitational field. The behavior of the QSL time in the two-flavor system indicates fast flavor transitions as the gravitational field strength increases. Subsequently, we observe quick suppression of entanglement by exploring the speed limit for entanglement entropy of two-flavor oscillations in the neutrino-antineutrino system in the proximity of a spinning primordial black hole.

12 pages, 5 figures, To be published in Astrophysics and Space Science Proceedings, titled "The Relativistic Universe: From Classical to Quantum, Proceedings of the International Symposium on Recent Developments in Relativistic Astrophysics", Gangtok, December 11-13, 2023: to felicitate Prof. Banibrata Mukhopadhyay on his 50th Birth Anniversary", Editors: S Ghosh & A R Rao, Springer Nature

References in corpus (8)

• Neutrino-Cooled Accretion Disks around Spinning Black Hole
• Entanglement in neutrino oscillations
• Gravity induced neutrino-antineutrino oscillation: CPT and lepton number non-conservation under gravity
• Speed limits on correlations in bipartite quantum systems
• Capacity of Entanglement for Non-local Hamiltonian
• CPT and lepton number violation in neutrino sector: Modified mass matrix and oscillation due to gravity
• Generalised quantum speed limit for arbitrary time-continuous evolution
• Neutrinos as qubits and qutrits