A pseudo-spin model for the wall of cytoskeletal microtubule
Chen Ying (陈莹)ab, Qiu Xi-Jun (邱锡钧)a, Li Ru-Xin (李儒新)c
a Department of Physics, Shanghai University, Shanghai 200436, China; b Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; c Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Abstract A pseudo-spin model is intended to describe the physical dynamics of unbound electrons in the wall of cytoskeletal microtubule (MT). Due to the inherent symmetry of the structure and the electric properties in the MT, one may treat it as a one-dimensional ferroelectric system, and describe the nonlinear dynamics of dimer electric dipoles in one protofilament of the MT by virtue of the double-well potential. Consequently, the physical problem has been mapped onto the pseudo-spin system, and the mean-field approximation has been taken to get some physical results.
Received: 07 September 2004
Revised: 20 October 2004
Accepted manuscript online:
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