Quantum memristors in frequency-entangled optical fields
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2020
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Resumo
A quantum memristor is a passive resistive circuit element with memory, engineered in
a given quantum platform. It can be represented by a quantum system coupled to a dissipative
environment, in which a system–bath coupling is mediated through a weak measurement scheme
and classical feedback on the system. In quantum photonics, such a device can be designed from
a beam splitter with tunable reflectivity, which is modified depending on the results of measurements
in one of the outgoing beams. Here, we show that a similar implementation can be achieved with
frequency-entangled optical fields and a frequency mixer that, working similarly to a beam splitter,
produces state superpositions. We show that the characteristic hysteretic behavior of memristors can
be reproduced when analyzing the response of the system with respect to the control, for different
experimentally attainable states. Since memory effects in memristors can be exploited for classical
and neuromorphic computation, the results presented in this work could be a building block for
constructing quantum neural networks in quantum photonics, when scaling up.
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Quantum memristors, Quantum neural networks, Memristive systems, Quantum photonics
Citação
GONZALEZ-RAYA, Tasio; LUKENS, Joseph M.; CÉLERI, Lucas C.; SANZ, Mikel. Quantum memristors in frequency-entangled optical fields. Materials, Basel, v. 13, n. 4, e864, 2020. DOI: 10.3390/ma13040864. Disponível em: https://www.mdpi.com/1996-1944/13/4/864. Acesso em: 2 maio 2023.