Critical sensing with a single bosonic mode without boson-boson interactions
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2023
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866914898209931264 |
|---|---|
| author | Chen, Ken Lü, Jia-Hao Zhu, Xin Zhang, Hao-Long Ning, Wen Yang, Zhen-Biao Zheng, Shi-Biao |
| author_facet | Chen, Ken Lü, Jia-Hao Zhu, Xin Zhang, Hao-Long Ning, Wen Yang, Zhen-Biao Zheng, Shi-Biao |
| contents | Critical phenomena of quantum systems are useful for enhancement of quantum sensing. However, experimental realizations of criticality enhancement have been confined to very few systems, owing to the stringent requirements, including the thermodynamical or scaling limit, and fine control of interacting quantum susystems or particles. We here propose a simple critical quantum sensing scheme that requires neither of these conditions. The critical system is realized with a single parametrically-driven bosonic mode involving many non-interacting bosons. We calculate the quantum Fisher information, and perform a simulation, which confirms the criticality-enabled enhancement. We further detail the response of one of the quadratures to the variation of the control parameter. The numerical results reveal that its inverted variance exhibits a diverging behavior at the critical point. Based on the presently available control techniques of parametric driving, we expect our scheme can be realized in different systems, e.g., ion traps and superconducting circuits. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2305_17656 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Critical sensing with a single bosonic mode without boson-boson interactions Chen, Ken Lü, Jia-Hao Zhu, Xin Zhang, Hao-Long Ning, Wen Yang, Zhen-Biao Zheng, Shi-Biao Quantum Physics Critical phenomena of quantum systems are useful for enhancement of quantum sensing. However, experimental realizations of criticality enhancement have been confined to very few systems, owing to the stringent requirements, including the thermodynamical or scaling limit, and fine control of interacting quantum susystems or particles. We here propose a simple critical quantum sensing scheme that requires neither of these conditions. The critical system is realized with a single parametrically-driven bosonic mode involving many non-interacting bosons. We calculate the quantum Fisher information, and perform a simulation, which confirms the criticality-enabled enhancement. We further detail the response of one of the quadratures to the variation of the control parameter. The numerical results reveal that its inverted variance exhibits a diverging behavior at the critical point. Based on the presently available control techniques of parametric driving, we expect our scheme can be realized in different systems, e.g., ion traps and superconducting circuits. |
| title | Critical sensing with a single bosonic mode without boson-boson interactions |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2305.17656 |