Journal
SCIENCE
Volume 352, Issue 6293, Pages 1552-1555Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aaf3397
Keywords
-
Categories
Funding
- Defense Threat Reduction Agency
- Office of Naval Research
Ask authors/readers for more resources
Quantum metrology exploits entangled states of particles to improve sensing precision beyond the limit achievable with uncorrelated particles. All previous methods required detection noise levels below this standard quantum limit to realize the benefits of the intrinsic sensitivity provided by these states. We experimentally demonstrate a widely applicable method for entanglement-enhanced measurements without low-noise detection. The method involves an intermediate quantum phase magnification step that eases implementation complexity. We used it to perform squeezed-state metrology 8 decibels below the standard quantum limit with a detection system that has a noise floor 10 decibels above the standard quantum limit.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available