Quantum fidelity and relative entropy between unitary orbits
classification
🪐 quant-ph
math-phmath.MP
keywords
quantumentropyfidelityrelativeorbitsunitaryinformationapplications
read the original abstract
Fidelity and relative entropy are two significant quantities in quantum information theory. We study the quantum fidelity and relative entropy under unitary orbits. The maximal and minimal quantum fidelity and relative entropy between two unitary orbits are explicitly derived. The potential applications in quantum computation and information processing are discussed.
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