MC simulations of $O(2)ϕ^4$ theory in three dimensions with worm algorithm

Barbara De Palma; Marco Guagnelli

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arXiv · 1803.10585

MC simulations of $O(2)ϕ^4$ theory in three dimensions with worm algorithm

Barbara De Palma·Marco Guagnelli

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Abstract

We study the critical region of the $O(2)\,ϕ^4$ theory by means of Monte Carlo simulations on the lattice. In particular we determine the ratio $Δ\langleϕ^2\rangle_c/g$ in order to estimate the first correction to the critical temperature of a weak interacting Bose gas.

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Barbara De Palma, Marco Guagnelli. 2018-03-28. MC simulations of $O(2)ϕ^4$ theory in three dimensions with worm algorithm. https://arxiv.org/abs/1803.10585

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