Quantum Computation and Information

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Discrimination of quantum states (2004, unknown): “It has been shown [1,41] that when the basis states are chosen to be − 1 / 2 − 1 / 2 F ( ρ 1 , ρ 2 ) = l ρ 1 l l ρ 2 l = r l s l .”
Topological Phases of Non-Hermitian Systems (2018, methodology): “A prototypical example is the isotropic depolarization channel for a single qubit [112]:”
Characterizing Quantum Gates via Randomized Benchmarking (2011, background): “Note that because of concavity of the fidelity, the minimum channel fidelity occurs at a pure state [39].”
Quantum error correction for beginners (2009, background): “…single qubit state that has been encoded as Now assume that an error occurs on one (or multiple) qubits which is described via the operator E , where E is a combination of X and/or Z errors over the N physical qubits of the logical state (and therefore an element of the N -qubit Pauli group, P N ).”
Roadmap on optical security (2016, background): “Taking a look at the counterpart of quantum information security [ 100 ] , we get an impression of what a serious situation our community is faced with.”