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Y. Hamdouni and F. Petruccione, “Time Evolution and Decoherence of a Spin- 1/2 Particle Coupled to a Spin Bath in Thermal Equilibrium,” Physical Review B, Vol. 76, No. 17, 2007, p. 174306. doi:10.1103/PhysRevB.76.174306

has been cited by the following article:

• TITLE: Study of Decoherence of Elementary Gates Implemented in a Chain of Few Nuclear Spins Quantum Computer Model

  AUTHORS: G. V. López, P. López

  KEYWORDS: Decoherence; Not Gate; Controlled-Not Gates; Controlled-Controlled-Not Gate; Nuclear Spin Chain; Quantum Computer

  JOURNAL NAME: Journal of Modern Physics, Vol.3 No.1, January 18, 2012

  ABSTRACT: We study the phenomenon of decoherence during the operation of one qubit transformation, controlled-not (CNOT) and controlled-controlled-not (C2NOT) quantum gates in a quantum computer model formed by a linear chain of three nuclear spins system. We make this study with different type of environments, and we determine the associated decoherence time as a function of the dissipative parameter. We found that the dissipation parameter to get a well defined quantum gates (without significant decoherence) must be within the range of . We also study the behavior of the purity parameter for these gates and different environments and found linear or quadratic decays of this parameter depending on the type of environments.