An Analysis of Mutual Communication between Qubits by Capacitive Coupling

Details An Analysis of Mutual Communication between Qubits by Capacitive Coupling An Analysis of Mutual Communication between Qubits by Capacitive Coupling

2002-10-04

arxiv.org/abs/quant-ph/0210028v5

Physics

Quantum Physics

8 pages, 2 figures Revised and Replaced on Apr. 8 2003

Scientific paper

10.1103/PhysRevA.67.050301

A behavior of a two qubit system coupled by the electric capacitance has been studied quantum mechanically. We found that the interaction is essentially the same as the one for the dipole-dipole interaction; i.e., qubit-qubit coupling of the NMR quantum gate. Therefore a quantum gate could be constructed by the same operation sequence for the NMR device if the coupling is small enough. The result gives an information to the effort of development of the devices assuming capacitive coupling between qubits.

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