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

Barbara De Palma; Marco Guagnelli

arxiv: 1803.10585 · v1 · pith:DU4NOJSYnew · submitted 2018-03-28 · ✦ hep-lat

MC simulations of O(2)φ⁴ theory in three dimensions with worm algorithm

Barbara De Palma , Marco Guagnelli This is my paper

classification ✦ hep-lat

keywords criticalsimulationstheoryalgorithmbosecarlocorrectiondelta

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

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MC simulations of O(2)φ⁴ theory in three dimensions with worm algorithm

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