Single spin detection by qubit SWAP to a molecular nanomagnet

Details Single spin detection by qubit SWAP to a molecular nanomagnet Single spin detection by qubit SWAP to a molecular nanomagnet

2004-12-10

arxiv.org/abs/quant-ph/0412081v2

Physics

Quantum Physics

Europhysics Letters 69,699 (2005)

Scientific paper

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 Fe$_{8}$, with large spin S=10. 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.

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