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Improved Hamiltonian Lattice Gauge Theory
J. Carlsson, J. A. L. McIntosh, B. H. J. McKellar +1
We derive an improved lattice Hamiltonian for pure gauge theory, coupling arbitrarily distant links in the kinetic term. The level of improvement achieved is examined in variationa…
A Non-Adiabatic Controlled Not Gate for the Kane Solid State Quantum Computer
C. Wellard, L. C. L. Hollenberg, H. C. Pauli
The method of iterated resolvents is used to obtain an effective Hamiltonian for neighbouring qubits in the Kane solid state quantum computer. In contrast to the adiabatic gate pro…
Stochastic Noise as a Source of Decoherence in a Solid State Quantum Computer
C. J. Wellard, L. C. L. Hollenberg
We examine a stochastic noise process that has a decohering effect on the average evolution of qubits in the quantum register of the solid state quantum computer proposed by Kane.…