0203059v2

related topics
{spin, pulse, spins}
{qubit, qubits, gate}
{level, atom, field}
{algorithm, log, probability}
{particle, mechanics, theory}
{energy, state, states}
{state, states, entangled}
{cos, sin, state}
{time, decoherence, evolution}
{state, algorithm, problem}

Qubitless Quantum Logic

Richard B. Kassman, Gennady P. Berman, Vladimir I. Tsifrinovich, Gustavo V. Lopez

abstract: We discuss the implementation of quantum logic in a system of strongly interacting particles. The implementation is qubitless since ``logical qubits'' don't correspond to any physical two-state subsystems. As an illustration, we present the results of simulations of the quantum controlled-NOT gate and Shor's algorithm for a chain of spin-1/2 particles with Heisenberg coupling. Our proposal extends the current theory of quantum information processing to include systems with permanent strong coupling between the two-state subsystems.

oai_identifier:
oai:arXiv.org:quant-ph/0203059
categories:
quant-ph
comments:
2 figures. Corrected title
arxiv_id:
quant-ph/0203059
created:
2002-03-13
updated:
2002-03-15

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