scholarly journals Phase diagram of weakly coupled Heisenberg spin chains subject to a uniform Dzyaloshinskii-Moriya interaction

2017 ◽  
Vol 95 (21) ◽  
Author(s):  
Wen Jin ◽  
Oleg A. Starykh
Keyword(s):  
Phase Diagram ◽  
Spin Chains ◽  
Heisenberg Spin ◽  
Weakly Coupled ◽  
Heisenberg Spin Chains ◽  
Moriya Interaction

Quantum teleportation in a three-qubit Heisenberg chain with Dzyaloshinsky–Moriya interaction

2015 ◽  
Vol 29 (20) ◽  
pp. 1550107 ◽  
Author(s):  
Yu-Xing Xi ◽  
Yan-Xia Huang
Keyword(s):  
Magnetic Field ◽  
Quantum Teleportation ◽  
Homogeneous Magnetic Field ◽  
Spin Chains ◽  
Coupling Coefficients ◽  
Heisenberg Chain ◽  
Average Fidelity ◽  
Heisenberg Spin ◽  
Heisenberg Spin Chains ◽  
Moriya Interaction

The quantum teleportation via thermally entangled states of three-qubit Heisenberg spin chains with Dzyaloshinsky–Moriya (DM) interactions under a homogeneous magnetic field has been investigated. It is found that average fidelity and critical temperature depend on not only temperature, magnetic field, but also coupling coefficients, and DM interactions. What is more, we also find that average fidelity has little to do with entanglement.

scholarly journals The spin-partitioned total position-spread tensor: An application to Heisenberg spin chains

2015 ◽  
Vol 143 (24) ◽  
pp. 244308 ◽  
Author(s):  
Edoardo Fertitta ◽  
Muammar El Khatib ◽  
Gian Luigi Bendazzoli ◽  
Beate Paulus ◽  
Stefano Evangelisti ◽  
...  
Keyword(s):  
Spin Chains ◽  
Heisenberg Spin ◽  
Heisenberg Spin Chains ◽  
Total Position
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