TY - JOUR
AU - Zhang, Weiping
AB - Abstract: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.
TI - Quantum Twin Interferometers
JO - Physics
DO - 10.48550/arxiv.2501.04244
DA - 2025-01-09
UR - https://www.deepdyve.com/lp/arxiv-cornell-university/quantum-twin-interferometers-dht0J8ItGU
VL - 2025
IS - 2501
DP - DeepDyve
ER -