Phys. Rev. A 70, 062307 (2004) [4 pages]Quantum entanglement of anisotropic magnetic nanodotsReceived 20 February 2004; published 8 December 2004 Anisotropic magnetic nanodots are promising physical realizations of qubits for quantum computing at finite temperature owing to their well-separated low-lying energy levels and scalability. The entanglement of two interacting magnetic nanodots is investigated and shown both analytically and numerically to be resonantly dependent on their interaction strength and on differences in their properties. These results provide criteria for fabricating and coupling magnetic nanodots so that their low-lying eigenstates can be significantly entangled. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.70.062307
DOI:
10.1103/PhysRevA.70.062307
PACS:
03.67.Mn, 75.10.Jm, 85.35.Be
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