A pseudo-spin model for the wall of cytoskeletal microtubule

• 来源期刊: 中国物理（英文版）
• 关键词: cell microtubule double-well potential pseudo-spin hamiltonian mean-field approximation
• 年，卷（期）: 2005,（2）
• 页码范围: 427-432
• 页数: 6页
• 语种: 英文

摘要

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.