Approaching the Limit of Quantum Clock Precision
Fuente:
arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| Soggetti: | |
| Accesso online: | |
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| _version_ | 1866910163256999936 |
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| author | Nelmes, Chad Schwarzhans, Emanuel Apollaro, Tony Spiller, Timothy D'Amico, Irene |
| author_facet | Nelmes, Chad Schwarzhans, Emanuel Apollaro, Tony Spiller, Timothy D'Amico, Irene |
| contents | Precise and autonomous clocks are of fundamental interest and central importance to both foundational studies and practical applications. Here, we construct a blueprint for a quantum clock governed by time-independent interactions. By carefully-engineered coherent transport in dissipative spin chains, we achieve a scaling exponent at the precision-resolution trade-off fundamental bound, bringing this within reach of physically realistic and experimentally accessible systems. We further introduce a sudden-quench protocol that enables repeated operation through a simple initialization and detachment mechanism. Remarkably, the protocol is robust to imprecise detachment timing, implying that high-precision timekeeping can be achieved even when driven by a clock with much lower precision. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_22704 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Approaching the Limit of Quantum Clock Precision Nelmes, Chad Schwarzhans, Emanuel Apollaro, Tony Spiller, Timothy D'Amico, Irene Quantum Physics Other Condensed Matter Computational Physics Precise and autonomous clocks are of fundamental interest and central importance to both foundational studies and practical applications. Here, we construct a blueprint for a quantum clock governed by time-independent interactions. By carefully-engineered coherent transport in dissipative spin chains, we achieve a scaling exponent at the precision-resolution trade-off fundamental bound, bringing this within reach of physically realistic and experimentally accessible systems. We further introduce a sudden-quench protocol that enables repeated operation through a simple initialization and detachment mechanism. Remarkably, the protocol is robust to imprecise detachment timing, implying that high-precision timekeeping can be achieved even when driven by a clock with much lower precision. |
| title | Approaching the Limit of Quantum Clock Precision |
| topic | Quantum Physics Other Condensed Matter Computational Physics |
| url | https://arxiv.org/abs/2604.22704 |