Quantum Twin Interferometers
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866913642421682176 |
|---|---|
| author | Du, Wei Wu, Shuhe Zhang, Dong Chen, Jun Yang, Yiquan Yang, Peiyu Guo, Jinxian Bao, Guzhi Zhang, Weiping |
| author_facet | Du, Wei Wu, Shuhe Zhang, Dong Chen, Jun Yang, Yiquan Yang, Peiyu Guo, Jinxian Bao, Guzhi Zhang, Weiping |
| contents | Quantum-correlated interferometer is a newly emerging tool in quantum technology that offers classical-limit-breaking phase sensitivity. But to date, there exists a configurational bottleneck for its practicability due to the low phase-sensitive photon numbers limited by the current detection strategies. Here we establish an innovative development termed as ``quantum twin interferometer'' with dual pairs of entangled twin beams arranged in the parallel configuration, allowing fully exploits the quantum resource through the new configuration of entangled detection. We observe the distributed phase sensing with 3 dB quantum noise reduction in phase-sensing power at the level of milliwatts, which advances the record of signal-to-noise ratio so far achieved in photon-correlated interferometers by three orders of magnitude. The developed techniques in this work can be used to revolutionize a diversity of quantum devices requiring phase measurement. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_04244 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantum Twin Interferometers Du, Wei Wu, Shuhe Zhang, Dong Chen, Jun Yang, Yiquan Yang, Peiyu Guo, Jinxian Bao, Guzhi Zhang, Weiping Atomic Physics Quantum-correlated interferometer is a newly emerging tool in quantum technology that offers classical-limit-breaking phase sensitivity. But to date, there exists a configurational bottleneck for its practicability due to the low phase-sensitive photon numbers limited by the current detection strategies. Here we establish an innovative development termed as ``quantum twin interferometer'' with dual pairs of entangled twin beams arranged in the parallel configuration, allowing fully exploits the quantum resource through the new configuration of entangled detection. We observe the distributed phase sensing with 3 dB quantum noise reduction in phase-sensing power at the level of milliwatts, which advances the record of signal-to-noise ratio so far achieved in photon-correlated interferometers by three orders of magnitude. The developed techniques in this work can be used to revolutionize a diversity of quantum devices requiring phase measurement. |
| title | Quantum Twin Interferometers |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2501.04244 |