Geometric measure of quantum discord under decoherence
نویسندگان
چکیده
منابع مشابه
Geometric measure of quantum discord under decoherence
The dynamics of a geometric measure of the quantum discord (GMQD) under decoherence is investigated. We show that the GMQD of a two-qubit state can be alternatively obtained through the singular values of a 3×4 matrix whose elements are the expectation values of Pauli matrices of the two qubits. By using Heisenberg picture, the analytic results of the GMQD is obtained for three typical kinds of...
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ژورنال
عنوان ژورنال: Quantum Information and Computation
سال: 2010
ISSN: 1533-7146,1533-7146
DOI: 10.26421/qic10.11-12-9