Simple Pulses for Universal Quantum Computation with a Heisenberg ABAB Chain

Details Simple Pulses for Universal Quantum Computation with a Heisenberg ABAB Chain Simple Pulses for Universal Quantum Computation with a Heisenberg ABAB Chain

2001-04-07

arxiv.org/abs/quant-ph/0104034v1

Physics

Quantum Physics

3 pages including 2 figs

Scientific paper

10.1103/PhysRevA.64.054303

Recently Levy has shown that quantum computation can be performed using an ABAB.. chain of spin-1/2 systems with nearest-neighbor Heisenberg interactions. Levy notes that all necessary elementary computational `gates' can be achieved by using spin-resonance techniques involving modulating the spin-spin interaction strength at high frequency. Here we note that, as an alternative to that approach, it is possible to perform the elementary gates with simple, non-oscillatory pulses.

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