Quantum reservoir computing in atomic lattices

Quantum reservoir computing (QRC) exploits the dynamical properties of quantum systems to perform machine learning tasks. We demonstrate that optimal performance in QRC can be achieved without relying on disordered systems. Systems with all-to-all topologies and random couplings are generally consid...

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Detalles Bibliográficos
Autores: Llodrà, Guillem, Mujal, Pere, Zambrini, Roberta, Giorgi, Gian Luca
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/401568
Acceso en línea:http://hdl.handle.net/10261/401568
https://api.elsevier.com/content/abstract/scopus_id/105000539231
Access Level:acceso abierto
Palabra clave:Bose–Hubbard model
Disorder in quantum systems
Quantum machine learning
Quantum reservoir computing
Descripción
Sumario:Quantum reservoir computing (QRC) exploits the dynamical properties of quantum systems to perform machine learning tasks. We demonstrate that optimal performance in QRC can be achieved without relying on disordered systems. Systems with all-to-all topologies and random couplings are generally considered to minimize redundancies and enhance performance. In contrast, our work investigates the one-dimensional Bose–Hubbard model with homogeneous couplings, where a chaotic phase arises from the interplay between coupling and interaction terms. Interestingly, we find that performance in different tasks can be enhanced either in the chaotic regime or in the weak interaction limit. Our findings challenge conventional design principles and indicate the potential for simpler and more efficient QRC implementations tailored to specific tasks in Bose–Hubbard lattices.