5 papers
Dynamics of nucleation in thermal phase transitions
Oliver Gould, Joonas Hirvonen, Andrey Shkerin +1
We study dynamical effects during nucleation in thermal first-order phase transitions in field theory. Focusing on the classical regime of the decay of a metastable state, we prese…
Simple third order operator-splitting schemes for stochastic mechanics and field theory
Andrey Shkerin, Sergey Sibiryakov
We present a method for constructing numerical schemes with up to 3rd strong convergence order for solution of a class of stochastic differential equations, including equations of…
Renormalization group flow of projectable Hořava gravity in (3+1) dimensions
Andrei O. Barvinsky, Alexander V. Kurov, Sergey M. Sibiryakov
We report a comprehensive numerical study of the renormalization group flow of marginal couplings in -dimensional projectable Hořava gravity. First, we classify all fixed po…
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…