An academic-industrial team in Japan has connected three laboratories in a 100-kilometer region with an optical telecommunications fiber network stable enough to remotely interrogate optical atomic clocks. This type of fiber ...
Optics & Photonics
Mar 17, 2020
0
150
The field of photonic integration—the area of photonics in which waveguides and devices are fabricated as an integrated system onto a flat wafer—is relatively young compared to electronics. Photonic integration has focused ...
Optics & Photonics
Feb 12, 2020
0
62
Atomic clocks are used around the world to precisely tell time. Each "tick" of the clock depends on atomic vibrations and their effects on surrounding electromagnetic fields. Standard atomic clocks in use today, based on ...
Quantum Physics
Dec 23, 2019
8
87
JILA physicists and collaborators have demonstrated the first next-generation "time scale"—a system that incorporates data from multiple atomic clocks to produce a single highly accurate timekeeping signal for distribution. ...
Quantum Physics
Oct 21, 2019
0
36
One of the fundamental challenges of physics is the reconciliation of Einstein's theory of relativity and quantum mechanics. The necessity to critically question these two pillars of modern physics arises, for example, from ...
Quantum Physics
Oct 7, 2019
0
646
Researchers experimentally determined a property of cadmium called the magic wavelength which is considered essential for the development of the most accurate clocks ever envisaged. The researchers hope this may permit simple ...
Condensed Matter
Sep 16, 2019
0
31
Researchers at the National Institute of Standards and Technology (NIST) have demonstrated a new type of sensor that uses atoms to receive commonly used communications signals. This atom-based receiver has the potential to ...
General Physics
Sep 5, 2019
0
1139
An atomic clock that could pave the way for autonomous deep space travel was successfully activated last week and is ready to begin its year-long tech demo, the mission team confirmed on Friday, Aug. 23, 2019. Launched in ...
Space Exploration
Aug 27, 2019
0
44
For centuries, humans have been expanding their understanding of the world through more and more precise measurement of light and matter. Today, quantum sensors achieve extremely accurate results. An example of this is the ...
Quantum Physics
Jul 2, 2019
0
0
SpaceX launched its heftiest rocket with 24 research satellites Tuesday, a middle-of-the-night rideshare featuring a deep space atomic clock, solar sail, a clean and green rocket fuel testbed, and even human ashes.
Space Exploration
Jun 25, 2019
1
2
