7 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…
New Gauge Forces, Neutron Stars and Schwinger Neutrino Production
Yuxin Liu, Zhen Liu, Andrey Shkerin +2
We investigate neutrino effects of new long-range forces arising from gauging , or symmetries of the Standard Model. The leptonic potential generat…
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…
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…
False vacuum decay catalyzed by black hole in a heat bath
Bowen Hu, Kohei Kamada, Andrey Shkerin
We study false vacuum decay catalyzed by black holes. We consider a scalar field model with unstable potential in the background of a dilaton black hole in two dimensions. The mode…
Nontopological Electromagnetic Hedgehogs
Yulia Galushkina, Emin Nugaev, Andrey Shkerin
We study classical localised configurations - solitons - in a theory of self-interacting complex Proca field with the global symmetry. We focus on spherically-symmetric soli…