Abstract
The quantum correlations of qubit-qudit states that satisfy the constraint of having coherences only between elements of the computational basis with the same number excitations and that occur naturally in the Jaynes-Cummings model are studied. It is numerically shown that for states with positive partial transpose it is always possible to construct a convex hull of separable states and it is also analytically shown that they posses discord if and only if the have at least one non-zero coherence.
© 2013 Optical Society of America
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