Bubble nucleation and quantum initial conditions in classical statistical simulations

Bubble nucleation and quantum initial conditions in classical statistical simulations

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Abstract Classical-statistical lattice simulations provide a useful approximation to out-of-equilibrium quantum field theory, but only KENWOOD CK407G 90 cm Gas Range Cooker - Black for systems exhibiting large occupation numbers, and only for phenomena that are not intrinsically quantum mechanical in nature.In certain special circumstances, it can be appropriate to initialize such real-time simulations with quantum-like zero-point fluctuations.We will revisit these points, and investigate reports that quantum bubble nucleation rates in 1+1 dimensions can be computed through the classical evolution of such a quantum-like initial condition [1].We find that although intriguing, the reported numerical agreement between classical-statistical simulations and Banners the quantum nucleation rate in 1+1 dimensions is a coincidence, which is not specific to this choice of initialisation, is parameter and lattice cut-off dependent and disappears as the number of space-dimensions increases from 1+1 to 2+1.