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Quantum Reservoir Computing Using Bose-Einstein Condensate with Damping

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arxiv 2408.09577 v2 pith:2BFYBAQ3 submitted 2024-08-18 cond-mat.quant-gas

classification cond-mat.quant-gas
keywords reservoircondensatedampingperformancequantumbose-einsteincomputingcondensed
verification ladder T0 review T1 audit T2 compute T3 formal
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Quantum reservoir computing is a type of machine learning in which the high-dimensional Hilbert space of quantum systems contributes to performance. In this study, we employ the Bose-Einstein condensate of dilute atomic gas as a reservoir to examine the effect of reduction in the number of condensed particles, damping, and the nonlinearity of the dynamics. It is observed that for the condensate to function as a reservoir, the physical system requires damping. The nonlinearity of the dynamics improves the performance of the reservoir, while the reduction in the number of condensed particles degrades the performance.

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  1. Connection between memory performance and optical absorption in quantum reservoir computing

    quant-ph 2025-01 conditional novelty 6.0 of 10

    In a dissipative qubit network used as a quantum reservoir, the dissipation strength that maximizes short-term memory also maximizes resonant optical absorption.

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