Quantum Abacus

Details Quantum Abacus Quantum Abacus

2004-04-07

arxiv.org/abs/quant-ph/0404039v1

Physics Letters A330 (2004) 338-342

Physics

Quantum Physics

4 Pages ReVTeX4 with 3 figures

Scientific paper

10.1016/j.physleta.2004.08.011

We show that the U(2) family of point interactions on a line can be utilized to provide the U(2) family of qubit operations for quantum information processing. Qubits are realized as localized states in either side of the point interaction which represents a controllable gate. The manipulation of qubits proceeds in a manner analogous to the operation of an abacus. Keywords: quantum computation, quantum contact interaction, quantum wire

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