Reexamination of determinant-based separability test for two qubits

Details Reexamination of determinant-based separability test for two qubits Reexamination of determinant-based separability test for two qubits

2010-10-03

arxiv.org/abs/1010.0395v3

Phys. Rev. A 83, 034301 (2011)

Physics

Quantum Physics

improved v3, journal ref. added

Scientific paper

It was shown in [Augusiak et al.,\;Phys. Rev. A \textbf{77}, 030301(R) (2008)] that discrimination between entanglement and separability in a two qubit state can be achieved by a measurement of a single observable on four copies of it. Moreover, a pseudo entanglement monotone $\pi$ was proposed to quantify entanglement in such states. The main goal of the present paper is to show that close relationship between $\pi$ and concurrence reported there is a result of sharing the same underlying construction of a spin flipped matrix. We also show that monogamy of entanglement can be rephrased in terms of $\pi$ and prove the factorization law for $\pi$.

Affiliated with

Also associated with

No associations

Rating

Reexamination of determinant-based separability test for two qubits 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 Reexamination of determinant-based separability test for two qubits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reexamination of determinant-based separability test for two qubits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-512316