| Issue |
Europhys. Lett.
Volume 69, Number 5, March 2005
|
|
|---|---|---|
| Page(s) | 699 - 705 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i2004-10406-0 | |
| Published online | 26 January 2005 | |
Single-spin detection by qubit SWAP to a molecular nanomagnet
1
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
Corresponding authors: mfeng@thphys.may.ie Jason.Twamley@may.ie
Received:
26
May
2004
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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