| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10727974 | Physics Letters A | 2005 | 8 Pages |
Abstract
Uhlmann's concept of quantum holonomy for paths of density operators is generalised to the off-diagonal case providing insight into the geometry of state space when the Uhlmann holonomy is undefined. Comparison with previous off-diagonal geometric phase definitions is carried out and an example comprising the transport of a Bell-state mixture is given.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Stefan Filipp, Erik Sjöqvist,