Zobrazeno 1 - 10
of 611
pro vyhledávání: '"Moss, Ian"'
Autor:
Caneletti, Matteo, Moss, Ian G
We present a theory of false vacuum decay induced by spherical nucleation seeds. The type of seed considered has a boundary characterised by surface energy terms. The theory applies to false vacuum decay at zero and finite temperatures. Seeded nuclea
Externí odkaz:
http://arxiv.org/abs/2408.12229
Autor:
Moss, Ian G
A new model for dark matter is put forward which consists of uniform droplets of Bose Einstein condensate. In this model, structure forms rapidly, shortly after the hot big bang plasma de-ionises. The model also produces modifications to the expansio
Externí odkaz:
http://arxiv.org/abs/2407.13243
Autor:
Jenkins, Alexander C., Moss, Ian G., Billam, Thomas P., Hadzibabic, Zoran, Peiris, Hiranya V., Pontzen, Andrew
Cold-atom analog experiments are a promising new tool for studying relativistic vacuum decay, enabling one to empirically probe early-Universe theories in the laboratory. However, existing proposals place stringent requirements on the atomic scatteri
Externí odkaz:
http://arxiv.org/abs/2311.02156
Autor:
Zenesini, Alessandro, Berti, Anna, Cominotti, Riccardo, Rogora, Chiara, Moss, Ian G., Billam, Thomas P., Carusotto, Iacopo, Lamporesi, Giacomo, Recati, Alessio, Ferrari, Gabriele
Publikováno v:
Nat. Phys. 20, 558 (2024)
In quantum field theory, the decay of an extended metastable state into the real ground state is known as ``false vacuum decay'' and it takes place via the nucleation of spatially localized bubbles. Despite the large theoretical effort to estimate th
Externí odkaz:
http://arxiv.org/abs/2305.05225
Autor:
Moss, Ian G.
This note analyses on the long wavelength dynamics of a two horizon analogue black hole system in one spatial dimension. By introducing an effective scalar-dilaton model we show that closed form expressions can be obtained for the time-dependent Hawk
Externí odkaz:
http://arxiv.org/abs/2303.01148
Autor:
Moss, Ian G., Stasiak, Piotr Z.
Particle production from the vacuum is a remarkable aspect of particle physics. Prime examples are the Schwinger process of particle production in strong electric fields and the Hawking process of particle production from black holes. These processes
Externí odkaz:
http://arxiv.org/abs/2303.01119
Cold atomic gases offer the prospect of simulating the physics of the very early universe in the laboratory. In the condensate phase, the gas is described by a field theory with key features of high energy particle theory. This paper describes a thre
Externí odkaz:
http://arxiv.org/abs/2212.03621
We propose an ultracold atom analogue of early universe vacuum decay using all three states of a spin-1 Bose gas. We consider a one-dimensional system with both radio frequency and optical Raman coupling between internal states. An advantage of our p
Externí odkaz:
http://arxiv.org/abs/2108.05740
We perform an analysis of the supercooled state in an analogue of an early universe phase transition based on a one dimensional, two-component Bose gas with time-dependent interactions. We demonstrate that the system behaves in the same way as a ther
Externí odkaz:
http://arxiv.org/abs/2104.07428
Publikováno v:
Class. Quantum Grav. 38 185005 (2021)
We investigate the evaporation process of a Kerr-de Sitter black hole with the Unruh-Hawking-like vacuum state, which is a realistic vacuum state modelling the evaporation process of a black hole originating from gravitational collapse. We also compu
Externí odkaz:
http://arxiv.org/abs/2103.09862