Efficient bipartite quantum state purification in arbitrary dimensional Hilbert spaces

Details Efficient bipartite quantum state purification in arbitrary dimensional Hilbert spaces Efficient bipartite quantum state purification in arbitrary dimensional Hilbert spaces

2001-02-06

arxiv.org/abs/quant-ph/0102035v1

Physics

Quantum Physics

This manuscript is based on results of our previous manuscript 'Generalized quantum XOR-gate for quantum teleportation and sta

Scientific paper

10.1088/0305-4470/34/42/307

A new purification scheme is proposed which applies to arbitrary dimensional bipartite quantum systems. It is based on the repeated application of a special class of nonlinear quantum maps and a single, local unitary operation. This special class of nonlinear quantum maps is generated in a natural way by a hermitian generalized XOR-gate. The proposed purification scheme offers two major advantages, namely it does not require local depolarization operations at each step of the purification procedure and it purifies more efficiently than other know purification schemes.

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