Thermodynamic Casimir effect: Universality and Corrections to Scaling
Thermodynamic Casimir effect: Universality and Corrections to Scaling
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热力学卡西米尔效应:普遍性和尺度修正
DOI:
10.1103/physrevb.85.174421
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发表时间:
2012
影响因子:
3.7
通讯作者:
M. Hasenbusch
中科院分区:
文献类型:
--
作者:
M. Hasenbusch
We study the thermodynamic Casimir force for films in the three-dimensional Ising universality class with symmetry breaking boundary conditions. We focus on the effect of corrections to scaling and probe numerically the universality of our results. In particular, we check the hypothesis that corrections are well described by an effective thickness, whereandare system specific parameters andis the exponent of the leading bulk correction. We simulate the improved Blume-Capel model and the spin-1/2 Ising model on the simple cubic lattice. First, we analyze the behavior of various quantities at the critical point. Taking into account correctionsin the case of the Ising model, we find good consistency of results obtained from these two different models. In particular, we get from the analysis of our data for the Ising model for the difference of Casimir amplitudes, which nicely compares withobtained by studying the improved Blume-Capel model. Next, we study the behavior of the thermodynamic Casimir force for large values of the scaling variable. It can be obtained up to an overall amplitude by expressing the partition function of the film in terms of eigenvalues and eigenstates of the transfer matrix and boundary states. Here, we demonstrate how this amplitude can be computed with high accuracy. Finally, we discuss our results for the scaling functionsandof the thermodynamic Casimir force for the whole range of the scaling variable. We conclude that our numerical results are in accordance with universality. Corrections to scaling are well approximated by an effective thickness.
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DOI:
10.1103/physreve.76.011121
发表时间:
2007
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
D. Dantchev;F. Schlesener;S. Dietrich
通讯作者:
S. Dietrich
影响因子:
3.7
作者:
P. Butera;M. Pernici
通讯作者:
M. Pernici
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
M. Hasenbusch
通讯作者:
M. Hasenbusch
影响因子:
4.4
作者:
C. Vohwinkel
通讯作者:
C. Vohwinkel
DOI:
10.1103/physreve.81.031103
发表时间:
2009
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
Xiaomei Feng;H. Blöte
通讯作者:
H. Blöte