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pro vyhledávání: '"Kolb, Edward"'
Cosmological gravitational particle production (GPP) is a generic mechanism by which particles are produced during the inflationary epoch. In this work we consider the GPP of massive scalars in an effort to fully understand the spectrum of the produc
Externí odkaz:
http://arxiv.org/abs/2410.03938
Publikováno v:
JHEP 2024, 71 (2024)
Dark photons are a theorized massive spin-1 particle which can be produced via various mechanisms, including cosmological gravitational particle production (GPP) in the early universe. In this work, we extend previous results for GPP of dark photons
Externí odkaz:
http://arxiv.org/abs/2405.19390
Publikováno v:
Phys.Rev.Lett. 133 (2024) 6, 061602
We demonstrate that gravitational particle production (GPP) of a massive, Abelian, vector (Proca) field during inflation in the presence of nonminimal coupling to gravity may suffer from an instability which leads to runaway production of high-moment
Externí odkaz:
http://arxiv.org/abs/2403.15536
Autor:
Kolb, Edward W., Long, Andrew J.
Cosmological gravitational particle production (CGPP) is the creation of particles in an expanding universe due solely to their gravitational interaction. These particles can play an important role in the cosmic history through their connection to va
Externí odkaz:
http://arxiv.org/abs/2312.09042
The Kalb-Ramond field is an antisymmetric, rank-two tensor field which most notably appears in the context of string theory, but has largely been unexplored in the context of cosmology. In this work, motivated by the Kalb-Ramond field in string theor
Externí odkaz:
http://arxiv.org/abs/2309.02485
The phenomenon of cosmological gravitational particle production (CGPP) is expected to occur during the period of inflation and the transition into a hot big bang cosmology. Particles may be produced even if they only couple directly to gravity, and
Externí odkaz:
http://arxiv.org/abs/2302.04390
We study cosmological gravitational particle production as applied to "rapid-turn" models of inflation involving two scalar fields. We are interested in the production of massive spin-0 particles that only interact gravitationally and provide a candi
Externí odkaz:
http://arxiv.org/abs/2211.14323
Previous numerical investigations of gravitational particle production during the coherent oscillation period of inflation displayed unexplained fluctuations in the spectral density of the produced particles. We argue that these features are due to t
Externí odkaz:
http://arxiv.org/abs/2209.01713