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Computable entanglement conversion witness that is better than the negativity
Mark W. Girard, Gilad Gour
The primary goal of entanglement theory is to determine convertibility conditions for two quantum states. Up until now, this has always been done with the use of entanglement monot…
Low-temperature thermodynamics with quantum coherence
Varun Narasimhachar, Gilad Gour
Thermal operations are an operational model of non-equilibrium quantum thermodynamics. In the absence of coherence between energy levels, exact state transition conditions under th…
On convex optimization problems in quantum information theory
Mark W. Girard, Gilad Gour, Shmuel Friedland
Convex optimization problems arise naturally in quantum information theory, often in terms of minimizing a convex function over a convex subset of the space of hermitian matrices.…
Mutually unbiased measurements in finite dimensions
Amir Kalev, Gilad Gour
We generalize the concept of mutually unbiased bases (MUB) to measurements which are not necessarily described by rank one projectors. As such, these measurements can be a useful t…