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- W2130402018 abstract "We present a method for simulating relativistic and nonrelativistic scalar field theories at finite density, with matter transforming in the fundamental representation of the global symmetry group O(N). The method avoids the problem of complex probability weights which is present in conventional path integral Monte Carlo algorithms. To verify our approach, we simulate the free and interacting relativistic U(1){approx_equal}O(2) theory in 2+1 dimensions. We compute the two-point correlation function and charge density as a function of chemical potential in the free theory. At weak |{phi}|{sup 4} coupling and zero temperature we map the m{sup 2}-{mu} phase diagram and compare our numerical results with perturbative calculations. Finally, we compute properties of the T-{mu} phase diagram in the vicinity of the phase transition and at bare self-couplings large compared to the temperature and chemical potential." @default.
- W2130402018 created "2016-06-24" @default.
- W2130402018 creator A5051997161 @default.
- W2130402018 date "2007-03-16" @default.
- W2130402018 modified "2023-09-25" @default.
- W2130402018 title "Method for simulating<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>O</mml:mi><mml:mo stretchy=false>(</mml:mo><mml:mi>N</mml:mi><mml:mo stretchy=false>)</mml:mo></mml:math>lattice models at finite density" @default.
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- W2130402018 doi "https://doi.org/10.1103/physrevd.75.065012" @default.
- W2130402018 hasPublicationYear "2007" @default.
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