The quantum computational speed of a single Cooper Pair box

Details The quantum computational speed of a single Cooper Pair box The quantum computational speed of a single Cooper Pair box

2011-07-09

arxiv.org/abs/1107.1781v1

Physics

Quantum Physics

Accepted, Physica E:doi:10.1016/j.physe.2011.06.013

Scientific paper

The speed of computations is investigated by means of the orthogonality speed for a charged qubit interacting with a single cavity field prepared initially in a Fock state or Binomial state. We observe that the rate of the computational speed is related to the number of photons inside the cavity. Moreover, we show that the qubit-field coupling plays an opposite role, where the speed of computations is decreased as the coupling is increased. We suggest using the number of photons in the field as a control parameter to improve the speed of computations.

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