Quantum sensing with discrete time crystals in the Lipkin-Meshkov-Glick Model
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866911689701588992 |
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| author | Ghosh, Rahul Das, Bandita Mukherjee, Victor |
| author_facet | Ghosh, Rahul Das, Bandita Mukherjee, Victor |
| contents | Quantum phase transitions have been shown to be highly beneficial for quantum sensing, owing to diverging quantum Fisher information close to criticality. In this work we consider a periodically modulated Lipkin-Meshkov-Glick model to show that discrete time crystal (DTC) phase transition in this setup can enable us to achieve quantum-enhanced high-precision sensing of field strength. We employ a detailed finite-size scaling analysis, a time-averaged Inverse Participation Ratio analysis, and mean-field analysis in the thermodynamic limit, to determine the critical properties of this second-order phase transition. Our studies provide a comprehensive understanding of how quantum criticality in DTCs involving long-range interactions can be harnessed for advanced quantum sensing applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_02825 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantum sensing with discrete time crystals in the Lipkin-Meshkov-Glick Model Ghosh, Rahul Das, Bandita Mukherjee, Victor Quantum Physics Statistical Mechanics Quantum phase transitions have been shown to be highly beneficial for quantum sensing, owing to diverging quantum Fisher information close to criticality. In this work we consider a periodically modulated Lipkin-Meshkov-Glick model to show that discrete time crystal (DTC) phase transition in this setup can enable us to achieve quantum-enhanced high-precision sensing of field strength. We employ a detailed finite-size scaling analysis, a time-averaged Inverse Participation Ratio analysis, and mean-field analysis in the thermodynamic limit, to determine the critical properties of this second-order phase transition. Our studies provide a comprehensive understanding of how quantum criticality in DTCs involving long-range interactions can be harnessed for advanced quantum sensing applications. |
| title | Quantum sensing with discrete time crystals in the Lipkin-Meshkov-Glick Model |
| topic | Quantum Physics Statistical Mechanics |
| url | https://arxiv.org/abs/2510.02825 |