Maximally entangled mixed states of two qubits

Details Maximally entangled mixed states of two qubits Maximally entangled mixed states of two qubits

2000-11-28

arxiv.org/abs/quant-ph/0011110v3

Phys. Rev. A (\bf 64), 012316 (2001)

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevA.64.012316

We consider mixed states of two qubits and show under which global unitary operations their entanglement is maximized. This leads to a class of states that is a generalization of the Bell states. Three measures of entanglement are considered: entanglement of formation, negativity and relative entropy of entanglement. Surprisingly all states that maximize one measure also maximize the others. We will give a complete characterization of these generalized Bell states and prove that these states for fixed eigenvalues are all equivalent under local unitary transformations. We will furthermore characterize all nearly entangled states closest to the maximally mixed state and derive a new lower bound on the volume of separable mixed states.

Affiliated with

Also associated with

No associations

Rating

Maximally entangled mixed states of 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 Maximally entangled mixed states of two qubits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Maximally entangled mixed states of two qubits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-115250