Kumari, Kamlesh ; Deepak Kumar, (1990) A new formalism for the statistical dynamics of planar spin systems Pramana - Journal of Physics, 35 (2). pp. 115-125. ISSN 0304-4289
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Official URL: http://www.ias.ac.in/j_archive/pramana/35/2/115-12...
Related URL: http://dx.doi.org/10.1007/BF02875284
Abstract
The relaxational dynamics of a classical planar Heisenberg spin system is studied using the Fokker-Planck equation. A new approach is introduced in which we attempt to directly calculate the eigenvalues of the Fokker-Planck operator. In this connection a number space representation is introduced, which enables us to visualize the eigenvalue structure of the Fokker-Planck operator. The mean field approximation is derived and a systematic method to improve the mean field approximation is presented.
Item Type: | Article |
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Source: | Copyright of this article belongs to Indian Academy of Sciences. |
Keywords: | Relaxational Dynamics; Planar Heisenberg Model; Fokker-planck Equation; Mean Field Approximation; Critical Slowing-down |
ID Code: | 9935 |
Deposited On: | 02 Nov 2010 10:23 |
Last Modified: | 16 May 2016 19:39 |
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