Back to Search
Start Over
No-Signaling Principle Can Determine Optimal Quantum State Discrimination.
No-Signaling Principle Can Determine Optimal Quantum State Discrimination.
- Source :
-
Physical Review Letters . 10/21/2011, Vol. 107 Issue 17, p170403-1-170403-4. 4p. - Publication Year :
- 2011
-
Abstract
- We provide a general framework of utilizing the no-signaling principle in derivation of the guessing probability in the minimum-error quantum state discrimination. We show that, remarkably, the guessing probability can be determined by the no-signaling principle. This is shown by proving that, in the semidefinite programing for the discrimination, the optimality condition corresponds to the constraint that quantum theory cannot be used for a superluminal communication. Finally, a general bound to the guessing probability is presented in a closed form. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 107
- Issue :
- 17
- Database :
- Academic Search Index
- Journal :
- Physical Review Letters
- Publication Type :
- Academic Journal
- Accession number :
- 70308006
- Full Text :
- https://doi.org/10.1103/physrevlett.107.170403