Experimental photonic quantum memristor

Autor(en)

Michele Spagnolo, Joshua Morris, Simone Piacentini, Michael Antesberger, Francesco Massa, Andrea Crespi, Francesco Ceccarelli, Roberto Osellame, Philip Walther

Abstrakt

Memristive devices are a class of physical systems with history-dependent dynamics characterized by signature hysteresis loops in their input-output relations. In the past few decades, memristive devices have attracted enormous interest in electronics. This is because memristive dynamics is very pervasive in nanoscale devices, and has potentially groundbreaking applications ranging from energy-efficient memories to physical neural networks and neuromorphic computing platforms. Recently, the concept of a quantum memristor was introduced by a few proposals, all of which face limited technological practicality. Here we propose and experimentally demonstrate a novel quantum-optical memristor (based on integrated photonics) that acts on single-photon states. We fully characterize the memristive dynamics of our device and tomographically reconstruct its quantum output state. Finally, we propose a possible application of our device in the framework of quantum machine learning through a scheme of quantum reservoir computing, which we apply to classical and quantum learning tasks. Our simulations show promising results, and may break new ground towards the use of quantum memristors in quantum neuromorphic architectures.A quantum-optical memristor is realized by means of a laser-written integrated photonic circuit. The memristive dynamics of the device is fully characterized. A memristor-based quantum reservoir computer is proposed as a possible application.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation, Forschungsverbund Quantum Aspects of Space Time

Externe Organisation(en)

Vienna Center for Quantum Science and Technology (VCQ), Consiglio Nazionale delle Ricerche, Politecnico di Milano

Journal

Nature Photonics

Band

16

Seiten

318-323

Anzahl der Seiten

6

ISSN

1749-4885

DOI

https://doi.org/10.1038/s41566-022-00973-5

Publikationsdatum

03-2022

Peer-reviewed

Ja

ÖFOS 2012

103021 Optik

Schlagwörter

ASJC Scopus Sachgebiete

Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/94f9db81-0f35-4902-8ff0-48a5961d00f1