Inflationary entanglement
arXiv:2212.06448 · doi:10.1103/PhysRevD.107.103512
Abstract
We investigate the entanglement due to geometric corrections in particle creation during inflation. To do so, we propose a single-field inflationary scenario, nonminimally coupled to the scalar curvature of spacetime. We require particle production to be purely geometric, setting to zero the Bogolubov coefficients and computing the matrix associated to spacetime perturbations, which are traced back to inflaton fluctuations. The corresponding particle density leads to a nonzero entanglement entropy whose effects are investigated at primordial time of Universe evolution. The possibility of modeling our particle candidate in terms of dark matter is discussed. The classical back-reaction of inhomogeneities on the homogeneous dynamical background degrees of freedom is also studied and quantified in the slow-roll regime.
16 pages, 5 figures
References in corpus (18)
- Dynamics of dark energy
- Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
- Extended Gravity Cosmography
- Warm Inflation and its Microphysical Basis
- Entangling Power of an Expanding Universe
- Gibbons-Hawking Effect in the Sonic de Sitter Space-Time of an Expanding Bose-Einstein-Condensed Gas
- Entanglement in an expanding spacetime
- "Cosmological" quasiparticle production in harmonically trapped superfluid gases
- Cosmological Particle Production: A Review
- Dark spinor inflation -- theory primer and dynamics
- Analogue of cosmological particle creation in an ion trap
- Healing the cosmological constant problem during inflation through a unified quasi-quintessence matter field
- Extended logotropic fluids as unified dark energy models
- Characterizing repulsive gravity with curvature eigenvalues
- Alleviating the cosmological constant problem from particle production
- Particle production and reheating in the inflationary universe
- Backreaction in Cosmology
- Cosmological dark energy effects from entanglement
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- Entanglement entropy in quantum black holes
- Comparing geometric and gravitational particle production in Jordan and Einstein frames
- Entanglement in Cosmology
- Entanglement area law violation from field-curvature coupling
- Imprints of screened dark energy on nonlocal quantum correlations
- Entanglement entropy evolution during gravitational collapse
- Tadpole Cosmology: Milne Solution as a Cosmological Constant Hideout
- How cosmological expansion affects communication between distant quantum systems
- Eisenhart-Duval lift, Nonlocal Conservation laws and Painlevé Analysis in Scalar field Cosmology