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pro vyhledávání: '"Wilkins, Ashley"'
Autor:
Wilkins, Ashley, Cable, Archie
In this work we terminate inflation during a phase of Constant Roll by means of a waterfall field coupled to the inflaton and a spectator field. The presence of a spectator field means that inflation does not end at a single point, $\phi_e$, but inst
Externí odkaz:
http://arxiv.org/abs/2306.09232
Autor:
Wilkins, Ashley
This thesis is dedicated to the study of stochastic processes; non-deterministic physical phenomena that can be well described by classical physics. The stochastic processes we are interested in are akin to Brownian Motion and can be described by an
Externí odkaz:
http://arxiv.org/abs/2306.02885
Autor:
Rigopoulos, Gerasimos, Wilkins, Ashley
We use Functional Renormalisation Group (FRG) techniques to analyse the behaviour of a spectator field, $\sigma$, during inflation that obeys an overdamped Langevin equation. We briefly review how a derivative expansion of the FRG can be used to obta
Externí odkaz:
http://arxiv.org/abs/2211.09649
Autor:
Rigopoulos, Gerasimos, Wilkins, Ashley
We use the Hamilton-Jacobi (H-J) formulation of stochastic inflation to describe the evolution of the inflaton during a period of Ultra-Slow Roll (USR), taking into account the field's velocity and its gravitational backreaction. We demonstrate how t
Externí odkaz:
http://arxiv.org/abs/2107.05317
We apply the functional Renormalisation Group (fRG) to study relaxation in a stochastic process governed by an overdamped Langevin equation with one degree of freedom, exploiting the connection with supersymmetric quantum mechanics in imaginary time.
Externí odkaz:
http://arxiv.org/abs/2102.04899
We use the functional Renormalisation Group (fRG) to describe the in and out of equilibrium dynamics of stochastic processes, governed by an overdamped Langevin equation. Exploiting the connection between Langevin dynamics and supersymmetric quantum
Externí odkaz:
http://arxiv.org/abs/2008.00472
Autor:
Torres-Escobar, Ascención, Wilkins, Ashley, Juárez-Rodríguez, María D., Circu, Magdalena, Latimer, Brian, Dragoi, Ana-Maria, Ivanov, Stanimir S.
Publikováno v:
Nature Communications; 9/8/2024, Vol. 15 Issue 1, p1-20, 20p
Autor:
Wilkins, Ashley, Sabín, Carlos
Publikováno v:
Phys. Rev. A 92, 062102 (2015)
We propose a scheme for quantum estimation by means of parametric amplification in circuit Quantum Electrodynamics. The modulation of a SQUID interrupting a superconducting waveguide transforms an initial thermal two-mode squeezed state in such a way
Externí odkaz:
http://arxiv.org/abs/1509.04142
Akademický článek
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Autor:
Cable, Archie, Wilkins, Ashley
In this work we terminate inflation during a phase of Constant Roll by means of a waterfall field coupled to the inflaton and a spectator field. The presence of a spectator field means that inflation does not end at a single point, $\phi_e$, but inst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2d3d7c6abe54a30a9052ee5900e815f