zhangaiping
|
- Associate Professor
- Name (Pinyin):zhangaiping
- School/Department:理学院
- Professional Title:Associate Professor
- Status:Employed
Other Contact Information
No content
- Paper Publications
Geometric Phase for a Qutrit-Qubit Mixed-Spin System
Release time:2024-08-09 Hits:
- Affiliation of Author(s):理学院
- Journal:中国物理快报
- Key Words:中文关键字：几何相位;混合自旋链;热态，英文关键字：Geometric phase;Mixed-spin system;thermal state
- Abstract:We study the geometric phase of a qutrit-qubit mixed-spin system in an external homogeneous magnetic field.Both the spin-spin interaction strength and the external magnetic field can affect the geometric phase of the system. In addition, we consider the negativity of the composite system. The relationship between the negativity and the geometric phase is obtained. Finally, we calculate the geometric phase for a thermal mixed state and show how the geometric phase depends on the rescaled coupling parameter and temperature. In the limit,we can recover the result of the ground state. This analysis has some implications in realistic implementations of geometric quantum computation.
- Note:张爱萍
- First Author:杨永明,xinhong,凌亚文,强稳朝,zhangaiping
- Indexed by:Journal paper
- Volume:卷：28
- Issue:期：8
- Page Number:页：080301-1—080301-4
- Translation or Not:no
- Date of Publication:2011-08-01