Dynamics of a Quantum Control-Not Gate for an Ensemble of Four-Spin Molecules at Room Temperature

Details Dynamics of a Quantum Control-Not Gate for an Ensemble of Four-Spin Molecules at Room Temperature Dynamics of a Quantum Control-Not Gate for an Ensemble of Four-Spin Molecules at Room Temperature

1998-02-05

arxiv.org/abs/quant-ph/9802016v1

Physics

Quantum Physics

7 pages 3 figures

Scientific paper

10.1103/PhysRevB.58.11570

We investigate numerically a single-pulse implementation of a quantum Control-Not (CN) gate for an ensemble of Ising spin systems at room temperature. For an ensemble of four-spin ``molecules'' we simulate the time-evolution of the density matrix, for both digital and superpositional initial conditions. Our numerical calculations confirm the feasibility of implementation of quantum CN gate in this system at finite temperature, using electromagnetic $\pi$-pulse.

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