Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Isichei, Raymond"'
Autor:
Isichei, Raymond, Magueijo, Joao
We explore the well know mass deficit/surplus phenomenon in General Relativity to suggest that it could play a part in the dark matter conundrum. Specifically in collapses and condensations of matter associated with negative intrinsic curvature of th
Externí odkaz:
http://arxiv.org/abs/2406.18979
Autor:
Isichei, Raymond, Magueijo, João
We study the Hamiltonian structure of unimodular-like theories, where the cosmological constant (or other supposed constants of nature) are demoted from fixed parameters to classical constants of motion. No new local degrees of freedom are present as
Externí odkaz:
http://arxiv.org/abs/2305.09380
Publikováno v:
Phys.Rev.D 108 (2023) 2, 023526
It is remarkably difficult to reconcile unitary and Vilenkin's wave function. For example, the natural conserved inner product found in quantum unimodular gravity applies to the Hartle-Hawking wave function, but fails for its Vilenkin counterpart. We
Externí odkaz:
http://arxiv.org/abs/2304.00666
Autor:
Isichei, Raymond, Magueijo, João
We derive the fixed-$\Lambda$ and unimodular propagators using the path integral formalism as applied to the Einstein-Cartan action. The simplicity of the action (which is linear in the lapse function) allows for an exact integration starting from th
Externí odkaz:
http://arxiv.org/abs/2210.05583
Autor:
Isichei, Raymond
A review of the path integral approach to quantum cosmology and its relation to canonical quantisation. The initial derivation of the Hartle-Hawking and Vilenkin wavefunctions from the Euclidean Einstein-Hilbert action, and later, from the Lorentzian
Externí odkaz:
http://arxiv.org/abs/2210.06981
Autor:
Isichei, Raymond1 (AUTHOR), Magueijo, João1 (AUTHOR) ri221@imperial.ac.uk
Publikováno v:
European Physical Journal C -- Particles & Fields. Apr2024, Vol. 84 Issue 4, p1-9. 9p.
Akademický článek
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It is remarkably difficult to reconcile unitary and Vilenkin's wave function. For example, the natural conserved inner product found in quantum unimodular gravity applies to the Hartle-Hawking wave function, but fails for its Vilenkin counterpart. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::736d203e2cd0e5973819a0043e20bc80
http://arxiv.org/abs/2304.00666
http://arxiv.org/abs/2304.00666
Akademický článek
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