Chiral-mediated entanglement in an Aharonov-Bohm ring

Article

关键词: HANBURY-BROWN;    QUANTUM DOTS;    ELECTRONS;    INTERFERENCE;    QUBITS;   

DOI  :  10.1103/PhysRevB.85.045442

来源: SCIE

【 摘 要 】

We study the orbital entanglement in a biased Aharonov-Bohm ring connected in a four-terminal setup. We find that the concurrence achieves a maximum when the magnetic flux Phi(B) coincides with an integer number of a half flux quantum Phi(0)/2. We show that this behavior is a consequence of the existence of degenerate states of the ring having opposite chirality. We also analyze the behavior of the noise as a function of Phi and discuss the reliability of this quantity as evidence of entanglement.

【 授权许可】

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