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Quantum Memristors in Frequency-Entangled Optical Fields

Journal Article · · Materials
DOI:https://doi.org/10.3390/ma13040864· OSTI ID:2496850

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.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
2496850
Alternate ID(s):
OSTI ID: 1606049
Journal Information:
Materials, Journal Name: Materials Journal Issue: 4 Vol. 13; ISSN MATEG9; ISSN 1996-1944
Publisher:
MDPI AGCopyright Statement
Country of Publication:
Switzerland
Language:
English

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