| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1534180 | Optics Communications | 2015 | 4 Pages |
Abstract
In this paper, we design a super-stable optical interferometer with multi-pass to estimate an unknown phase by using single photon, two-entangled photons, four-entangled photons and distinguishable four-photons. By jointing photon counting measurements, we find that these schemes enable us to estimate an unknown phase with a considerable high precision and beat the standard quantum limit under a certain condition.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Li-Xin Xia, Run-Qin Liu, Sheng-Qing Yu, Bin Xie, Xiang-Ling Zhou, Ling Guo,