Purification via entanglement swapping and conserved entanglement
Abstract
We investigate the purification of entangled states by local actions using a variant of entanglement swapping. We show that there exists a measure of entanglement which is conserved in this type of purification procedure.
- Publication:
-
Physical Review A
- Pub Date:
- July 1999
- DOI:
- 10.1103/PhysRevA.60.194
- arXiv:
- arXiv:quant-ph/9812013
- Bibcode:
- 1999PhRvA..60..194B
- Keywords:
-
- 03.67.-a;
- Quantum information;
- Quantum Physics
- E-Print:
- 4 pages, 2 figures, minor changes, to appear in Phys. Rev. A (tent: July 99)