Eliminating leading corrections to scaling in the three-dimensional O(N) symmetric phi**4 model: N=3 and N=4
Oct, 200020 pages
Published in:
- J.Phys.A 34 (2001) 8221-8236
e-Print:
- cond-mat/0010463 [cond-mat]
Report number:
- HUB-EP-00-39
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Abstract: (arXiv)
We study corrections to scaling in the O(3)- and O(4)-symmetric phi^4 model on the three-dimensional simple cubic lattice with nearest neighbour interactions. For this purpose, we use Monte Carlo simulations in connection with a finite size scaling method. We find that there exists a finite value of the coupling lambda^*, for both values of N, where leading corrections to scaling vanish. As a first application, we compute the critical exponents nu=0.710(2) and eta=0.0380(10) for N=3 and nu=0.749(2) and eta=0.0365(10) for N=4.Note:
- 21 pages, 2 figures Report-no: HUB-EP-00/39
- phi**n model: 4
- symmetry: O(3)
- symmetry: O(4)
- dimension: 3
- lattice field theory
- scaling: finite size
- numerical calculations: Monte Carlo
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