Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Pîrvu, Dalila"'
We numerically study the evolution of a classical real scalar field in ${(1+1)}$ dimensions with initial conditions describing thermal fluctuations around a metastable vacuum. We track false vacuum decay in real time and compare several observables t
Externí odkaz:
http://arxiv.org/abs/2408.06411
We study the decay of a thermally excited metastable vacuum in classical field theory using real-time numerical simulations. We find a lower decay rate than predicted by standard thermal theory. The discrepancy is due to the violation of thermal equi
Externí odkaz:
http://arxiv.org/abs/2407.06263
Autor:
McCarthy, Fiona, Pirvu, Dalila, Hill, J. Colin, Huang, Junwu, Johnson, Matthew C., Rogers, Keir K.
Dark photons that kinetically mix with the Standard Model photon give rise to new spectral anisotropies (patchy dark screening) in the cosmic microwave background (CMB) due to conversion of photons to dark photons within large-scale structure. We uti
Externí odkaz:
http://arxiv.org/abs/2406.02546
Cosmic Microwave Background (CMB) photons can undergo resonant conversion into axions in the presence of magnetized plasma distributed inside non-linear large-scale structure (LSS). This process leads to axion-induced patchy screening: secondary temp
Externí odkaz:
http://arxiv.org/abs/2405.08059
Metastable `false' vacuum states are an important feature of the Standard Model of particle physics and many theories beyond it. Describing the dynamics of a phase transition out of a false vacuum via the nucleation of bubbles is essential for unders
Externí odkaz:
http://arxiv.org/abs/2312.13364
We study anisotropic (patchy) screening induced by the resonant conversion of cosmic microwave background (CMB) photons into dark-sector massive vector bosons (dark photons) as they cross non-linear large scale structure (LSS). Resonant conversion ta
Externí odkaz:
http://arxiv.org/abs/2307.15124
False vacuum decay in quantum mechanical first order phase transitions is a phenomenon with wide implications in cosmology, and presents interesting theoretical challenges. In the standard approach, it is assumed that false vacuum decay proceeds thro
Externí odkaz:
http://arxiv.org/abs/2109.04496
Autor:
Gray, Finnian, Holst, Ian, Kubiznak, David, Odak, Gloria, Pirvu, Dalila M., Perche, Tales Rick
Publikováno v:
Phys. Rev. D 101, 084031 (2020)
We demonstrate separability of conformally coupled scalar field equation in general (off-shell) Kerr-NUT-AdS spacetimes in all dimensions. The separability is intrinsically characterized by the existence of a complete set of mutually commuting confor
Externí odkaz:
http://arxiv.org/abs/2002.05221
Publikováno v:
Journal of High Energy Physics; Nov2024, Vol. 2024 Issue 11, p1-38, 38p
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