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- W2037958064 abstract "The quantum Deutsch-Jozsa algorithm is implemented by using vibrational modes of a two-dimensional double well. The laser fields realizing the different gates (NOT, CNOT, and HADAMARD) on the two-qubit space are computed by the multitarget optimal control theory. The stability of the performance index is checked by coupling the system to an environment. Firstly, the two-dimensional subspace is coupled to a small number Nb of oscillators in order to simulate intramolecular vibrational energy redistribution. The complete (2+Nb)D problem is solved by the coupled harmonic adiabatic channel method which allows including coupled modes up to Nb=5. Secondly, the computational subspace is coupled to a continuous bath of oscillators in order to simulate a confined environment expected to be favorable to achieve molecular computing, for instance, molecules confined in matrices or in a fullerene. The spectral density of the bath is approximated by an Ohmic law with a cutoff for some hundreds of cm−1. The time scale of the bath dynamics (of the order of 10fs) is then smaller than the relaxation time and the controlled dynamics (2ps) so that Markovian dissipative dynamics is used." @default.
- W2037958064 created "2016-06-24" @default.
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- W2037958064 date "2007-06-26" @default.
- W2037958064 modified "2023-09-25" @default.
- W2037958064 title "Optimal control simulation of the Deutsch-Jozsa algorithm in a two-dimensional double well coupled to an environment" @default.
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- W2037958064 doi "https://doi.org/10.1063/1.2743429" @default.
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