Resolving gravitational redshift with sub-millimeter height differences using spin-squeezed optical clocks
Sign Up to like & getrecommendations! Published in 2025 at "Chinese Physics B"
DOI: 10.1088/1674-1056/adca1d
Abstract: The phenomenon that a clock at a higher gravitational potential ticks faster than one at a lower potential, also known as gravitational redshift, is one of the classical tests of Einstein’s theory of general relativity.… read more here.
Keywords: redshift; gravitational redshift; optical clocks; resolving gravitational ... See more keywords
The ticking of thorium nuclear optical clocks: a developmental perspective
Sign Up to like & getrecommendations! Published in 2025 at "National Science Review"
DOI: 10.1093/nsr/nwaf083
Abstract: Thorium nuclear clock research has stormed forward, carving out significant progress, yet a thicket of challenges remains, while its potential to supercharge timekeeping and reshape physics is truly staggering. read more here.
Keywords: ticking thorium; optical clocks; thorium nuclear; clocks developmental ... See more keywords
Characterization of the Frequency Stability of a Multibranch Optical Frequency Comb
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2020.2986422
Abstract: Presently, ultra-precise optical clocks’ comparisons can be performed easily using the optical frequency combs (OFCs) as a transfer oscillator. In this scheme, different OFC branches are usually used to enable optical clocks’ comparison at different… read more here.
Keywords: frequency; optical frequency; stability; characterization frequency ... See more keywords
Toward a New Generation of Compact Transportable Yb+ Optical Clocks
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DOI: 10.3390/sym14102213
Abstract: Optical atomic clocks are currently one of the most sensitive tools making it possible to precisely test the fundamental symmetry properties of spacetime and Einstein’s theory of relativity. At the same time, the extremely high… read more here.
Keywords: new generation; compact transportable; optical clocks; toward new ... See more keywords