A collaboration between Harvard University with scientists at QuEra Computing, MIT, University of Innsbruck and other institutions has demonstrated a .
31 Dec 2020
10 - 9 - 8 - 7 - 6 - 5 - 4 - 3 - 2 - 1. Happy New Year!
While the UK looks to Big Ben and the US have their Times Square pendulum, our New Year celebrations rely on pin point accurate timing. Now, a new kind of atomic clock, designed by MIT researchers, will enable even a half second off since the beginning of the Universe to seem like an unnecessary eternity. Entanglement-enhanced optical atomic clocks are no longer bound by the Standard Quantum Limit and will help enable physicists to decipher signals in the universe such as dark matter and gravitational waves.
Atomic clocks are the most precise timekeepers in the world. These exquisite instruments use lasers to measure the vibrations of atoms, which oscillate at a constant frequency, like many microscopic pendulums swinging in sync. The best atomic clocks in the world keep time with such precision that, if they had been running since the beginning of the universe, they would only be off by about half a second tod
But hoping to improve on that staggering feat, scientists at MIT have now pushed the envelope and devised plans for an even more reliable timepiece with notions for a mind-boggling new quantum-entangled atomic clock. Details of their research were recently published in the online journal Nature, where MIT s team provided the blueprints for this remarkable device.
Credit: MIT
You d think that recording the vibrations of a single atom should be the ultimate method by which to document time passing. However, a pesky principle involving random quantum fluctuations can disturb the near-perfect mechanism in an effect called the Standard Quantum Limit.
Researchers used photography capture technology in 30-minute intervals every day to capture the movement.
This study could help better identify time of death. We re learning more new things about death everyday. Much has been said and theorized about the great divide between life and the Great Beyond. While everyone and every culture has their own philosophies and unique ideas on the subject, we re beginning to learn a lot of new scientific facts about the deceased corporeal form.An Australian scientist has found that human bodies move for more than a year after being pronounced dead. These findings could have implications for fields as diverse as pathology to criminology.
New type of atomic clock keeps time even more precisely
December 19, 2020MIT
The design, which uses entangled atoms, could help scientists detect dark matter and study gravity’s effect on time.
Atomic clocks are the most precise timekeepers in the world. These exquisite instruments use lasers to measure the vibrations of atoms, which oscillate at a constant frequency, like many microscopic pendulums swinging in sync. The best atomic clocks in the world keep time with such precision that, if they had been running since the beginning of the universe, they would only be off by about half a second today.