No-Signaling Principle Can Determine Optimal Quantum State Discrimination
No-Signaling Principle Can Determine Optimal Quantum State Discrimination
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 programming for the discrimination, the …