| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1865517 | Physics Letters A | 2006 | 5 Pages |
Abstract
Entanglement evolution of a degenerate system is studied. It is found that an entangled state becomes unentangled under an adiabatic variation of the system, and vice versa. The amount of entanglement varies with different adiabatic paths. It is concluded that the entanglement of complete set of eigenstates of a system at thermal equilibrium is independent on perturbations, but the entanglement of partial eigenstates may change with adiabatic perturbations. This can help us to control entanglement properties and is very useful in the quantum computations.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Junpeng Cao, Yupeng Wang, X.R. Wang,