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The log of a quantum state and qubit local unitary invariants
log quantum state qubit local unitary invariants
2010/10/19
Local unitary invariants of multipartite states fall into families related by the tracing-out of subsystems. In the case of pure qubit systems, there is a family that accounts for about half the total...
Linear optical realization of unambiguous quantum state comparison
quantum state comparison linear optics quantum fingerprinting
2013/7/3
In this paper, we propose an experimental scheme for unambiguous quantum state comparison assisted by linear optical manipulations, twin-photons produced from parametric down-conversion, and postselec...
Quantum State Generation and Entanglement Manipulation Using Linear Optics
linear optics quantum state entanglement manipulation
2010/4/12
Quantum information processing (QIP) requires unitary operations, measurements and synthesis, manipulation and characterization of arbitrary quantum states. Linear optics provides efficient tools for ...