Complete Separability and Fourier representations of n-qubit states

Details Complete Separability and Fourier representations of n-qubit states Complete Separability and Fourier representations of n-qubit states

1999-12-28

arxiv.org/abs/quant-ph/9912116v1

Phys. Rev. A62, 042306 (2000).

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevA.62.042306

Necessary conditions for separability are most easily expressed in the computational basis, while sufficient conditions are most conveniently expressed in the spin basis. We use the Hadamard matrix to define the relationship between these two bases and to emphasize its interpretation as a Fourier transform. We then prove a general sufficient condition for complete separability in terms of the spin coefficients and give necessary and sufficient conditions for the complete separability of a class of generalized Werner densities. As a further application of the theory, we give necessary and sufficient conditions for full separability for a particular set of $n$-qubit states whose densities all satisfy the Peres condition.

Affiliated with

Also associated with

No associations

Rating

Complete Separability and Fourier representations of n-qubit states does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Complete Separability and Fourier representations of n-qubit states, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Complete Separability and Fourier representations of n-qubit states will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-295670