Noiseless Quantum Circuits for the Peres Separability Criterion

Details Noiseless Quantum Circuits for the Peres Separability Criterion Noiseless Quantum Circuits for the Peres Separability Criterion

2003-09-29

arxiv.org/abs/quant-ph/0309216v5

Phys. Rev. Lett., vol. 94(4), 040502 (2005)

Physics

Quantum Physics

4 pages RevTeX, 7 figures encapsulated postscript. v5: title changed slightly, more-or-less equivalent to the published versio

Scientific paper

10.1103/PhysRevLett.94.040502

In this Letter we give a method for constructing sets of simple circuits that
can determine the spectrum of a partially transposed density matrix, without
requiring either a tomographically complete POVM or the addition of noise to
make the spectrum non-negative. These circuits depend only on the dimension of
the Hilbert space and are otherwise independent of the state.

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