Remote generalized measurements (POVMs) require non-maximal entanglement

Details Remote generalized measurements (POVMs) require non-maximal entanglement Remote generalized measurements (POVMs) require non-maximal entanglement

2002-03-13

arxiv.org/abs/quant-ph/0203055v1

Physics

Quantum Physics

4 pages, one figure

Scientific paper

We show that non-maximal entangled states can be used for implementing, with unit probability, remote generalized measurements (POVMs). We show how any n-qubit POVM can be applied remotely and derive its entanglement cost. The later turns out to be equal to the entanglement capability for a class of POVMs. This suggests a one-to-one relation between sub-sets of POVM operations and entanglement.

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