Physicists have found a way to measure the elusive quantum phase of electrons. A metronome for quantum particles - phys.org metronome for quantum particles A new measurement protocol, developed at TU Wien (Vienna), makes it possible to measure the quantum phase of electrons—an important step for attosecond physics. This enables a new, better view of important phenomena used in photosensors or photovoltaics. A metronome for quantum particles – BIOENGINEER.ORG trick of the newly developed method is to add a second quantum effect as a clock – serving as a quantum metronome, so to speak. Instead of absorbing only one photon, the atom can also absorb two photons at once, under certain conditions. It is like a microscope for time: Today’s methods of attosecond physic allows us to measure extremely short time intervals. A metronome for quantum particles -- ScienceDaily trick of the newly developed method is to add a second quantum effect as a clock -- serving as a quantum metronome, so to speak. Instead of absorbing only one photon, the atom can also absorb... With the help of short laser pulses, physical processes can be investigated on a time scale of attoseconds — that is billionths of a billionth of a second.
For example, it is possible to study how a single atom is ionized and how an electron leaves the atom. The electron does not simply behave like a point-like particle, but its quantum-physical wave properties play an important role: the electron is actually an electron wave that oscillates on an extremely short time scale — and on a tiny length scale. A metronome for quantum particles – Best Health News metronome for quantum particles Published October 1, 2019 Physicists have found a way to measure the elusive quantum phase of electrons. This enables a new, better view of important phenomena used in photosensors or photovoltaics. It is a huge challenge to measure the cycle duration of such an oscillation, but It is even much more difficult to determine its phase: What exactly is the beat the electron oscillation follows? If an electron can be ionized in two different ways, will both electron waves oscillate in perfect unison, or will there be a small time delay (i.e. a phase shift)? A team from TU Wien (Vienna) and the CREOL College at the University of Central Florida has now developed a method to measure the phase of such electron waves. A metronome for quantum particles – Career Biotech metronome for quantum particles Career Biotech October 1, 2019 0 A new measurement protocol, developed at TU Wien (Vienna), makes it possible to measure the quantum phase of electrons – an important step for attosecond physics. This enables a new, better view of important phenomena used in photosensors or photovoltaics.
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Quite a lot has been going on:
Google claims to have won the race to ‘quantum supremacy’
The internet giant claims to have demonstrated the superiority of a quantum computer over the conventional machines that power our world today.
Quantum computers are processors believed to be capable of solving calculations that are too complex for standard machines not rooted in quantum physics.
To Invent a Quantum Internet
The first data ever transmitted over Arpanet, the precursor of the internet, blipped from a computer at the University of California, Los Angeles to one at the Stanford Research Institute in Palo Alto on Oct. 29, 1969.
That evening, the team at UCLA got on the phone with the SRI team and began typing ‘LOGIN.’ ‘We typed the L and we asked, ‘Did you get the L?’ the UCLA computer scientist Leonard Kleinrock recently recalled. ‘Yep’ came the reply from SRI. We typed the O and asked, ‘Did you get the O?’ ‘Yep.’ We typed the G and asked, ‘Did you get the G?’ Crash! The SRI host had crashed. Thus was the first message that launched the revolution we now call the internet.’
Publisher: Scientific American
Author: Natalie Wolchover Quanta Magazine
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New quantum technology enables light manipulation at greater scales
Sept. 27 (UPI) — To develop the next generation of quantum technologies, scientists need to find new ways to manipulate light.
In a new paper, published Friday in the journal NPJ Quantum Information, an international group of scientists claim to have done precisely that.
According to lead author Omar Maga’a-Loaiza, an assistant professor in the department of physics and astronomy at the Louisiana State University, the breakthrough could inspire quantum technologies with applications in imaging, computation, communication and cryptography.
Author: Brooks Hays
Reference: Visit Source
Happening on Twitter
September 2019 ended up being rather warm and dry across West Central and Southwest Florida with many locations end’ https://t.co/TNXTzELGgg
NWSTampaBay (from Tampa Bay, Florida)
Tue Oct 01 09:58:00 +0000 2019
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KatCalvinLA (from Themyscira)
Mon Sep 30 19:22:05 +0000 2019