Deterministic polarization-entanglement purification using spatial entanglement
Abstract
We present an efficient entanglement purification protocol with hyperentanglement in which additional spatial entanglement is utilized to purify the two-particle polarization-entangled state. The bit-flip error and phase-flip error can be corrected and eliminated in one step. Two remote parties can obtain maximally entangled polarization states deterministically and only passive linear optics are employed. We also discuss the protocol with practical quantum source and noisy channel.
- Publication:
-
Physical Review A
- Pub Date:
- October 2010
- DOI:
- 10.1103/PhysRevA.82.044304
- arXiv:
- arXiv:1010.5301
- Bibcode:
- 2010PhRvA..82d4304L
- Keywords:
-
- 03.67.Pp;
- 03.67.Hk;
- 03.65.Ud;
- Quantum error correction and other methods for protection against decoherence;
- Quantum communication;
- Entanglement and quantum nonlocality;
- Quantum Physics
- E-Print:
- 4pages,1 figure