Even-Odd Effects of Heisenberg Chains on Long-range Interaction and Entanglement

Details Even-Odd Effects of Heisenberg Chains on Long-range Interaction and Entanglement Even-Odd Effects of Heisenberg Chains on Long-range Interaction and Entanglement

2010-07-23

arxiv.org/abs/1007.4136v1

Phys. Rev. B 82, 140403(R) (2010)

Physics

Quantum Physics

4 pages, 6 figures

Scientific paper

10.1103/PhysRevB.82.140403

A strongly coupled Heisenberg chain provides an important channel for quantum communication through its many-body ground state. Yet, the nature of the effective interactions and the ability to mediate long-range entanglement differs significantly for chains of opposite parity. Here, we contrast the characters of even and odd-size chains when they are coupled to external qubits. Additional parity effects emerge in both cases, depending on the positions of the attached qubits. Some striking results include (i) the emergence of maximal entanglement and (ii) Ruderman-Kittel-Kasuya-Yosida (RKKY) interactions for qubits attached to an even chain, and (iii) the ability of chains of either parity to mediate qubit entanglement that is undiminished by distance.

Affiliated with

Also associated with

No associations

Rating

Even-Odd Effects of Heisenberg Chains on Long-range Interaction and Entanglement 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 Even-Odd Effects of Heisenberg Chains on Long-range Interaction and Entanglement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Even-Odd Effects of Heisenberg Chains on Long-range Interaction and Entanglement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-139051