CPC G06N 10/40 (2022.01) [G06N 10/70 (2022.01)] | 7 Claims |
1. A control system for a state of a quantum harmonic oscillator, comprising:
the quantum harmonic oscillator configured to carry encoded information in a Schrödinger's cat type state of the quantum harmonic oscillator,
a stabilization device for a predetermined parity of a number of bosons of the Schrödinger's cat type state, which device is configured to use a first frequency comb and a second frequency comb, the first frequency comb and the second frequency comb each including at least as many rays as a mean number of bosons in the Schrödinger's cat type state of the quantum harmonic oscillator, and
a multi-photon dissipation device arranged to remove at least one pair of bosons simultaneously from the quantum harmonic oscillator,
the multi-photon dissipation device being arranged such that it is activated only over activation periods between two successive time peaks of the first frequency comb and the second frequency comb,
the activation periods each having a duration which is greater than an inverse of a product of a mean number of bosons in the Schrödinger's cat type state of the quantum harmonic oscillator and an inverse of a characteristic time separating a removal of at least one pair of bosons simultaneously from the quantum harmonic oscillator by multi-photon dissipation, and
a duration separating two successive activation periods being less than a characteristic loss time of a boson in the quantum harmonic oscillator.
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