Quantum Information Processing with Nuclear Spin-Based Devices
T.F. Havel, P. Cappellaro, C. Ramanathan and D.G. Cory
Massachusetts Institute of Technology, US
spintronics, quantum computing, NMR
This talk will illustrate the benefits offered by QIP with two devices which use quantum entanglement among nuclear spins to defeat the Heisenberg limits: (1) a spin gyroscope that operates by detecting the frequency shift in the spins’ precession rate in the rotating frame, which is potentially more accurate than mechanical or optical devices; (2) a quantum amplifier which correlates the states of a macroscopic number of nuclear spins with the state of a single target spin, so that a collective measurement of the state of the amplifier’s spins reveals that of the target spin.
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Nanotech 2005 Conference Program Abstract