Enforcing Coherent Evolution in Dissipative Quantum Dynamics

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Science  30 Aug 1996:
Vol. 273, Issue 5279, pp. 1207-1210
DOI: 10.1126/science.273.5279.1207


The major obstacle to the preparation and manipulation of many-particle entangled states is decoherence due to the coupling of the system to the environment. A scheme to correct for the effects of decoherence and enforce coherent evolution in the system dynamics is described and illustrated for the particular case of the ion-trap quantum computer.