Cosmological quantum entanglement : A possible testbed for the existence of Kalb-Ramond field

Abstract

In the present paper, we explore the possible effects of a second rank antisymmetric tensor field, known as Kalb-Ramond (KR) field, on cosmological particle production as well as on quantum entanglement for a massive scalar field propagating in a four dimensional FRW spacetime evolves through a symmetric bounce. For this purpose, the scalar field is considered to be coupled with the KR field and also with the Ricci scalar via the term $\sim \xi R{\Phi }^2$ (with $\xi$ be the coupling). The presence of KR field spoils the conformal symmetry of a massless scalar field even for $\xi =1/6$ in four dimensional context, which has interesting consequences on particle production and consequently on quantum entanglement as we will discuss. In particular, the presence of KR field in a FRW bouncing universe allows a greater particle production and consequently the upper bound of the entanglement entropy becomes larger in comparison to the case when the KR field is absent. This may provide an interesting testbed for the existence of Kalb-Ramond field in our universe.

arXiv commentCQG accepted

References in corpus (36)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Particle Physics Models of Inflation and the Cosmological Density Perturbation
• Inflationary Cosmology
• Phenomenology of a Stabilized Modulus
• Bouncing Cosmologies: Progress and Problems
• Entangling Power of an Expanding Universe
• Search for Supersymmetry in pp Collisions at 7 TeV in Events with Jets and Missing Transverse Energy
• Exploring Bouncing Cosmologies with Cosmological Surveys
• Twistor spaces for HKT manifolds
• Search for supersymmetry using final states with one lepton, jets, and missing transverse momentum with the ATLAS detector in sqrt{s} = 7 TeV pp
• Entanglement in an expanding spacetime
• Spacetime structure and vacuum entanglement
• Bouncing cosmology with future singularity from modified gravity
• Entanglement of Dirac fields in an expanding spacetime
• Search for Microscopic Black Hole Signatures at the Large Hadron Collider
• Parity Violating Gravitational Coupling Of Electromagnetic Fields
• Entanglement in curved spacetimes and cosmology
• An Extended Matter Bounce Scenario: current status and challenges
• Extended matter bounce scenario in ghost free $f(R,\mathcal{G})$ gravity compatible with GW170817
• The inflationary universe in F(R) gravity with antisymmetric tensor fields and their suppression during the universe evolution
• Does a Kalb-Ramond field make spacetime optically active
• Cosmic optical activity from an inhomogeneous Kalb-Ramond field
• Quantum Equivalence of Massive Antisymmetric Tensor Field Models in Curved Space
• $\Lambda$CDM Bounce Cosmology without $\Lambda$CDM: the case of modified gravity
• Bouncing cosmology from warped extra dimensional scenario
• Spin-Particles Entanglement in Robertson-Walker Spacetime
• Bouncing cosmology from Kalb-Ramond Braneworld
• Preserving Information from the Beginning to the End of time in a Robertson-Walker Spacetime
• Invariant Connections with Torsion on Group Manifolds and Their Application in Kaluza-Klein Theories
• Anisotropic power-law inflation for a conformal-violating Maxwell model
• The role of spin in entanglement generated by expanding spacetime
• Spacetime anisotropy affects cosmological entanglement
• Dynamical suppression of spacetime torsion
• Cosmology and entanglement
• Five-Dimensional Black Hole String Backgrounds and Brane Universe Acceleration

Cited by in corpus (3)

• Torsion in string-inspired cosmologies and the universe dark sector
• Torsion at different scales: from materials to the Universe
• Anisotropic power-law inflation for models of non-canonical scalar fields non-minimally coupled to a two-form field