Probing quantum anomalous heat flow using mid-circuit measurements
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866910678385688576 |
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| author | Mallik, Aabhaas Vineet Cangemi, Loris Maria Levy, Amikam Torre, Emanuele G. Dalla |
| author_facet | Mallik, Aabhaas Vineet Cangemi, Loris Maria Levy, Amikam Torre, Emanuele G. Dalla |
| contents | Gate-based quantum computers are an innovative tool for experimentally studying the core principles of quantum mechanics. This work presents the first observation of quantum anomalous heat flow between two qubits and investigates the role of mid-circuit measurements in this context. Using mid-circuit measurements, we designed quantum circuits that violate the semi-classical heat flow bound, witnessing negativities in the underlying Kirkwood-Dirac quasiprobability distribution, which indicates the presence of quantum correlations between the subsystems. Mid-circuit measurements, crucial for probing qubits during the experiment, enabled these observations but also introduced disturbances, such as energy leakage, leading to deviations from theoretical predictions. We modeled these noise effects, providing insight into the limitations of current mid-circuit measurement techniques. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_22900 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Probing quantum anomalous heat flow using mid-circuit measurements Mallik, Aabhaas Vineet Cangemi, Loris Maria Levy, Amikam Torre, Emanuele G. Dalla Quantum Physics Gate-based quantum computers are an innovative tool for experimentally studying the core principles of quantum mechanics. This work presents the first observation of quantum anomalous heat flow between two qubits and investigates the role of mid-circuit measurements in this context. Using mid-circuit measurements, we designed quantum circuits that violate the semi-classical heat flow bound, witnessing negativities in the underlying Kirkwood-Dirac quasiprobability distribution, which indicates the presence of quantum correlations between the subsystems. Mid-circuit measurements, crucial for probing qubits during the experiment, enabled these observations but also introduced disturbances, such as energy leakage, leading to deviations from theoretical predictions. We modeled these noise effects, providing insight into the limitations of current mid-circuit measurement techniques. |
| title | Probing quantum anomalous heat flow using mid-circuit measurements |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2410.22900 |