Volume 69, Number 5, March 2005
|Page(s)||699 - 705|
|Published online||26 January 2005|
Single-spin detection by qubit SWAP to a molecular nanomagnet
Department of Mathematical Physics, National University of Ireland Maynooth, Co. Kildare, Ireland
2 Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences Wuhan, 430071, PRC
Accepted: 22 December 2004
Spin state detection is a key but very challenging step for any spin-based solid-state quantum computing technology. In fullerene-based quantum computer technologies, we here propose to detect the single spin inside a fullerene by transferring the quantum information from the endohedral spin to the ground states of a molecular nanomagnet , with large spin . We show how to perform the required SWAP operation and how to read out the information through state-of-the-art techniques such as micro-SQUID.
PACS: 03.67.Lx – Quantum computation / 73.21.-b – Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems
© EDP Sciences, 2005
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