19 citations · 56 across the 8 of their papers we have counts for
8 papers
Thermal false vacuum decay in (1+1)-dimensions: Evidence for non-equilibrium dynamics
Dalila Pîrvu, Andrey Shkerin, Sergey Sibiryakov
We numerically study the evolution of a classical real scalar field in dimensions with initial conditions describing thermal fluctuations around a metastable vacuum. We t…
Thermal False Vacuum Decay Is More Than It Seems
Dalila Pîrvu, Andrey Shkerin, Sergey Sibiryakov
We study the decay of a thermally excited metastable vacuum in classical field theory using real-time numerical simulations. We find a significantly lower decay rate than predicted…
Dark photon limits from patchy dark screening of the cosmic microwave background
Fiona McCarthy, Dalila Pirvu, J. Colin Hill +3
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 conv…
Axion-Induced Patchy Screening of the Cosmic Microwave Background
Cristina Mondino, Dalila Pîrvu, Junwu Huang +1
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)…
Bubble velocities and oscillon precursors in first-order phase transitions
Dalila Pîrvu, Matthew C. Johnson, Sergey Sibiryakov
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 o…
Patchy Screening of the CMB from Dark Photons
Dalila Pîrvu, Junwu Huang, Matthew C. Johnson
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 the…
Bubble Clustering in Cosmological First Order Phase Transitions
Dalila Pirvu, Jonathan Braden, Matthew C. Johnson
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…
Conformally Coupled Scalar in Rotating Black Hole Spacetimes
Finnian Gray, Ian Holst, David Kubiznak +3
We demonstrate separability of conformally coupled scalar field equation in general (off-shell) Kerr-NUT-AdS spacetimes in all dimensions. The separability is intrinsically charact…