Geometric phase in open two-level system

被引：42
|
作者：
Wang, Z. S.
Kwek, L. C.
Lai, C. H.
Oh, C. H.
机构：
[1] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore
[2] Nanyang Technol Univ, Natl Inst Educ, Singapore 637616, Singapore
来源：
EUROPHYSICS LETTERS | 2006年 / 74卷 / 06期
关键词：
D O I：
10.1209/epl/i2006-10057-1
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A mapping is established in connecting density matrices, associated with an evolution of a quantum open system, with vector ray in a complex projective Hilbert space. By using the corresponding vector ray to represent the open two-level system, we may observe the geometric phase for the open two-level system. The geometric phase of the open two-level system depends only on the smooth ( open or closed) curve in the complex projective Hilbert space of ray, which is formulated entirely in terms of geometric structures on this space.
引用
收藏
页码：958 / 964
页数：7
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