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DC Field | Value | Language |
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dc.contributor.author | Agullo I. | |
dc.contributor.author | Olmedo J. | |
dc.contributor.author | Sreenath V. | |
dc.date.accessioned | 2021-05-05T10:30:07Z | - |
dc.date.available | 2021-05-05T10:30:07Z | - |
dc.date.issued | 2020 | |
dc.identifier.citation | Physical Review D Vol. 101 , 12 , p. - | en_US |
dc.identifier.uri | https://doi.org/10.1103/PhysRevD.101.123531 | |
dc.identifier.uri | http://idr.nitk.ac.in/jspui/handle/123456789/16293 | - |
dc.description.abstract | We derive a Hamiltonian formulation of the theory of gauge invariant, linear perturbations in anisotropic Bianchi I spacetimes, and describe how to quantize this system. The matter content is assumed to be a minimally coupled scalar field with potential V(φ). We show that a Bianchi I spacetime generically induces both anisotropies and quantum entanglement on cosmological perturbations, and provide the tools to compute the details of these features. We then apply this formalism to a scenario in which the inflationary era is preceded by an anisotropic Bianchi I phase, and discuss the potential imprints in observable quantities. The formalism developed here paves the road to a simultaneous canonical quantization of both the homogeneous degrees of freedom and the perturbations, a task that we develop in a companion paper. © 2020 American Physical Society. | en_US |
dc.title | Hamiltonian theory of classical and quantum gauge invariant perturbations in Bianchi I spacetimes | en_US |
dc.type | Article | en_US |
Appears in Collections: | 1. Journal Articles |
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