Experimental measurement of quantum-first-passage-time distributions
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866913097691693056 |
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| author | Ryan, Joseph M. Gorbaty, Simon Kessler, Thomas J. Peaks, Mitchell G. Teitsworth, Stephen W. Noel, Crystal |
| author_facet | Ryan, Joseph M. Gorbaty, Simon Kessler, Thomas J. Peaks, Mitchell G. Teitsworth, Stephen W. Noel, Crystal |
| contents | Classical First-Passage-Time Distributions (FPTDs) have been extensively studied both theoretically and experimentally. Their quantum counterparts, Quantum First-Passage-Time Distributions (QFPTDs), remain largely unexplored and have deep implications for both fundamental physics and the development of emerging quantum technologies. We measure the first QFPTDs using a motional mode of a single trapped ion. We develop a novel composite-phase laser pulse sequence to perform tunable stroboscopic projective measurements of the motional state of a trapped ion. We measure QFPTDs of the ion energy when coupled to electric-field noise and establish a clear connection with its classical counterpart. The measurement protocol developed here is broadly applicable to other quantum systems and provides a powerful method for exploring a broad range of QFPTD phenomena. With these results we open a new field of experimental investigations of QFPT processes with potential future relevance to quantum search algorithms, unraveling connections between classical and quantum dynamics, and study of the quantum measurement problem. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_21790 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Experimental measurement of quantum-first-passage-time distributions Ryan, Joseph M. Gorbaty, Simon Kessler, Thomas J. Peaks, Mitchell G. Teitsworth, Stephen W. Noel, Crystal Quantum Physics Data Analysis, Statistics and Probability Classical First-Passage-Time Distributions (FPTDs) have been extensively studied both theoretically and experimentally. Their quantum counterparts, Quantum First-Passage-Time Distributions (QFPTDs), remain largely unexplored and have deep implications for both fundamental physics and the development of emerging quantum technologies. We measure the first QFPTDs using a motional mode of a single trapped ion. We develop a novel composite-phase laser pulse sequence to perform tunable stroboscopic projective measurements of the motional state of a trapped ion. We measure QFPTDs of the ion energy when coupled to electric-field noise and establish a clear connection with its classical counterpart. The measurement protocol developed here is broadly applicable to other quantum systems and provides a powerful method for exploring a broad range of QFPTD phenomena. With these results we open a new field of experimental investigations of QFPT processes with potential future relevance to quantum search algorithms, unraveling connections between classical and quantum dynamics, and study of the quantum measurement problem. |
| title | Experimental measurement of quantum-first-passage-time distributions |
| topic | Quantum Physics Data Analysis, Statistics and Probability |
| url | https://arxiv.org/abs/2508.21790 |