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arXiv · 2111.08977

Realization of a quantum perceptron gate with trapped ions

P. Huber·J. Haber·P. Barthel·J. J. García-Ripoll·E. Torrontegui·C. Wunderlich
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Abstract

We report the implementation of a perceptron quantum gate in an ion-trap quantum computer. In this scheme, a perceptron's target qubit changes its state depending on the interactions with several qubits. The target qubit displays a tunable sigmoid switching behaviour becoming a universal approximator when nested with other percetrons. The procedure consists on the adiabatic ramp-down of a dressing-field applied to the target qubit. We also use two successive perceptron quantum gates to implement a XNOR-gate, where the perceptron qubit changes its state only when the parity of two input qubits is even. The applicability can be generalized to higher-dimensional gates as well as the reconstruction of arbitrary bounded continuous functions of the perceptron observables.

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P. Huber, J. Haber, P. Barthel, J. J. García-Ripoll, E. Torrontegui, C. Wunderlich. 2021-11-17. Realization of a quantum perceptron gate with trapped ions. https://arxiv.org/abs/2111.08977

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