Resonance offset tailored composite pulses.
J Magn Reson 148:2 (2001) 338-342
Abstract:
We describe novel composite pulse sequences which act as general rotors and thus are particularly suitable for nuclear magnetic resonance quantum computation. The resonance offset tailoring to enhance nutations approach permits perfect compensation of off-resonance errors at two selected frequencies placed symmetrically around the frequency of the radiofrequency source.NMR quantum computation
PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 38:4 (2001) 325-360
Quantum computing and nuclear magnetic resonance
PHYSCHEMCOMM (2001) ARTN 11
Geometric quantum computation
J MOD OPTIC 47:14-15 (2000) 2501-2513
Abstract:
We describe in detail a general strategy for implementing a conditional geometric phase between two spins. Combined with single-spin operations, this simple operation is a universal gate for quantum computation, in that any unitary transformation can be implemented with arbitrary precision using only single-spin operations and conditional phase shifts. Thus quantum geometrical phases can form the basis of any quantum computation. Moreover, as the induced conditional phase depends only on the geometry of the paths executed by the spins it is resilient to certain types of errors and offers the potential of a naturally fault-tolerant way of performing quantum computation.NMR: The Toolkit
OUP, 2000