We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
ON THE EXISTENCE OF PHYSICAL TRANSFORMATIONS BETWEEN SETS OF QUANTUM STATES.
- Authors
CHEFLES, ANTHONY; JOZSA, RICHARD; WINTER, ANDREAS
- Abstract
Let A={ρ1,...,ρn} be a given set of quantum states. We consider the problem of finding necessary and sufficient conditions on another set B={σ1,...,σn} that guarantee the existence of a physical transformation taking ρi to σi for all i. Uhlmann has given an elegant such condition when both sets comprise pure states. We give a simple proof of this condition and develop some consequences. Then we consider multi-probabilistic transformations between sets of pure states which leads to conditions for the problem of transformability between A and B when one set is pure and the other is arbitrary.
- Publication
International Journal of Quantum Information, 2004, Vol 2, Issue 1, p11
- ISSN
0219-7499
- Publication type
Article