Binder cumulant: Difference between revisions
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Carl McBride (talk | contribs) (New page: {{Stub-general}} The '''Binder cumulant''' for an Ising model with zero field, is given by :<math>U_4 = 1- \frac{\langle m^4 \rangle }{3\langle m^2 \rangle^2 }</math> . ...) |
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The '''Binder cumulant''' for an [[Ising Models |Ising model]] with zero field, is given by | The '''Binder cumulant''' for an [[Ising Models |Ising model]] with zero field, is given by | ||
:<math>U_4 = 1- \frac{\langle m^4 \rangle }{3\langle m^2 \rangle^2 }</math> | :<math>U_4 = 1- \frac{\langle m^4 \rangle }{3\langle m^2 \rangle^2 }</math> | ||
where ''m'' is the [[Order parameters |order parameter]]. | |||
In the [[thermodynamic limit]], where the system size <math>L \rightarrow \infty</math>, <math>U_4 \rightarrow 0</math> for <math>T > T_c</math>, and <math>U_4 \rightarrow 2/3</math> for <math>T < T_c</math>. | In the [[thermodynamic limit]], where the system size <math>L \rightarrow \infty</math>, <math>U_4 \rightarrow 0</math> for <math>T > T_c</math>, and <math>U_4 \rightarrow 2/3</math> for <math>T < T_c</math>. | ||
==References== | ==References== | ||
#[http://dx.doi.org/10.1007/BF01293604 K. Binder "Finite size scaling analysis of ising model block distribution functions", Zeitschrift für Physik B Condensed Matter '''43''' pp. 119-140 (1981)] | #[http://dx.doi.org/10.1007/BF01293604 K. Binder "Finite size scaling analysis of ising model block distribution functions", Zeitschrift für Physik B Condensed Matter '''43''' pp. 119-140 (1981)] |
Revision as of 18:42, 8 November 2007
The Binder cumulant for an Ising model with zero field, is given by
where m is the order parameter. In the thermodynamic limit, where the system size , for , and for .