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论文类型： 期刊论文

发表时间： 2008-07-01

发表刊物： JOURNAL OF MODERN OPTICS

收录刊物： SCIE、EI

卷号： 55

期号： 12

页面范围： 1937-1945

ISSN号： 0950-0340

关键字： berry phase

摘要： In this paper, we study the effect of quantum subsystem-subsystem coupling on the magnetic-like field that the classical subsystem feels in a quantum-classical hybrid system. The hybrid system is composed of a classical magnetic particle and two coupled spins. We show that (i) when the spin-spin interaction is equal to the magnetic-spin interaction, the magnetic-like field changes sharply. This observation becomes more clear when the distance between the two subsystems is much longer than the magnetic particle's rotating radius. (ii) When the spin-spin interaction is larger than the coupling between the quantum classical systems, the effect that the quantum subsystem acts on in the classical part approaches zero. Some useful applications are also discussed.