dorsal/arxiv
View SchemaContinuous-time noise mitigation in analogue quantum simulation
| Authors | Gabriele Bressanini, Yue Ma, Hyukjoon Kwon, M. S. Kim |
|---|---|
| Categories | |
| ArXiv ID | 2601.05952vv1 |
| URL | https://arxiv.org/abs/2601.05952 |
| License | http://creativecommons.org/licenses/by/4.0/ |
Abstract
Analogue quantum simulators offer a promising route to explore quantum many-body dynamics beyond classical reach in the near term. However, their vulnerability to noise limits the accuracy of simulations. Here, we establish a new framework for mitigating noise in analogue quantum simulation, operating in a time-continuous manner. To our knowledge, this is the first protocol that is fully analogue and that achieves exact noise cancellation. Our method requires a small number of ancillary qubits, whose interaction with the system$-$combined with classical post-processing of joint measurement data$-$is tailored to cancel the effect of noise. Furthermore, the protocol is Hamiltonian-independent, robust to realistic ancilla noise, and avoids any discretization, preserving the continuous-time nature of the system's dynamics. This work opens a new direction for achieving high-fidelity analogue quantum simulation in the presence of noise.
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"abstract": "Analogue quantum simulators offer a promising route to explore quantum many-body dynamics beyond classical reach in the near term. However, their vulnerability to noise limits the accuracy of simulations. Here, we establish a new framework for mitigating noise in analogue quantum simulation, operating in a time-continuous manner. To our knowledge, this is the first protocol that is fully analogue and that achieves exact noise cancellation. Our method requires a small number of ancillary qubits, whose interaction with the system$-$combined with classical post-processing of joint measurement data$-$is tailored to cancel the effect of noise. Furthermore, the protocol is Hamiltonian-independent, robust to realistic ancilla noise, and avoids any discretization, preserving the continuous-time nature of the system\u0027s dynamics. This work opens a new direction for achieving high-fidelity analogue quantum simulation in the presence of noise.",
"arxiv_id": "2601.05952",
"authors": [
"Gabriele Bressanini",
"Yue Ma",
"Hyukjoon Kwon",
"M. S. Kim"
],
"categories": [
"quant-ph"
],
"license": "http://creativecommons.org/licenses/by/4.0/",
"title": "Continuous-time noise mitigation in analogue quantum simulation",
"url": "https://arxiv.org/abs/2601.05952",
"version": "v1"
},
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"execution_id": "8c45e882-2993-410a-81bc-5ca6246dd2dc",
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