期刊
PHYSICAL REVIEW LETTERS
卷 107, 期 16, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.107.163602
关键词
-
资金
- EPSRC
- ERC
- IARPA
- Leverhulme Trust
- PHORPBITECH
- QAP
- Q-ESSENCE
- QIP
- IRC
- QUANTIP
- NSQI
- Royal Society
- Engineering and Physical Sciences Research Council [EP/F010524/1] Funding Source: researchfish
- EPSRC [EP/F010524/1] Funding Source: UKRI
Generating quantum entanglement is not only an important scientific endeavor, but will be essential to realizing quantum-enhanced technologies, in particular, quantum-enhanced measurements with precision beyond classical limits. We investigate the heralded generation of multiphoton entanglement for quantum metrology using a reconfigurable integrated waveguide device in which projective measurement of auxiliary photons heralds the generation of path-entangled states. We use four and six-photon inputs, to analyze the heralding process of two-and four-photon NOON states-a superposition of N photons in two paths, capable of enabling phase supersensitive measurements at the Heisenberg limit. Realistic devices will include imperfections; as part of the heralded state preparation, we demonstrate phase superresolution within our chip with a state that is more robust to photon loss.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据