Phys. Rev. Lett. 77, 3641–3644 (1996)Order-Parameter Distribution Function of Finite O(n) Symmetric SystemsReceived 2 April 1996; published in the issue dated 21 October 1996 We present analytic and numerical studies of the order-parameter distribution function near the critical point of O(n) symmetric three-dimensional (3D) systems in a finite geometry. The distribution function is calculated within the ϕ4 field theory for a 3D cube with periodic boundary conditions by means of a new approach that appropriately deals with the Goldstone modes below Tc. Good agreement is found with new Monte Carlo data for the distribution function of the magnetization of the 3D XY (n = 2) and Heisenberg (n = 3) models. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.77.3641
DOI:
10.1103/PhysRevLett.77.3641
PACS:
75.40.Mg, 05.70.Jk, 64.60.Ak
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