Miscellaneous Archives

Characterizing the ‘arrow of time’ in open quantum systems

Even in the strange world of open quantum systems, the arrow of time points steadily forward -- most of the time. New experiments conducted at Washington University in St. Louis compare the forward and reverse trajectories of superconducting circuits called qubits, and find that they follow the second law of thermodynamics. The research is published…

July 10, 20193 minRead time

Miscellaneous

Physicists’ finding could revolutionize information transmission

Move aside, electrons; it's time to make way for the trion. A research team led by physicists at the University of California, Riverside, has observed, characterized, and controlled dark trions in a semiconductor -- ultraclean single-layer tungsten diselenide (WSe2) -- a feat that could increase the capacity and alter the form of information transmission. In…

July 10, 20195 minRead time

Miscellaneous

Producing graphene from carbon dioxide

The general public knows the chemical compound of carbon dioxide as a greenhouse gas in the atmosphere and because of its global-warming effect. However, carbon dioxide can also be a useful raw material for chemical reactions. A working group at Karlsruhe Institute of Technology (KIT) has now reported on this unusual application in the ChemSusChem journal. They…

July 9, 20194 minRead time

Miscellaneous

Supercomputer shows ‘Chameleon Theory’ could change how we think about gravity

Supercomputer simulations of galaxies have shown that Einstein's theory of General Relativity might not be the only way to explain how gravity works or how galaxies form. Physicists at Durham University, UK, simulated the cosmos using an alternative model for gravity -- f(R)-gravity, a so called Chameleon Theory. The resulting images produced by the simulation…

July 9, 20195 minRead time

Miscellaneous

Researchers develop superconducting quantum refrigerator

Imagine a refrigerator so cold it could turn atoms into their quantum states, giving them unique properties that defy the rules of classical physics. In a paper published in Physical Review Applied, Andrew Jordan, professor of physics at the University of Rochester, and his graduate student Sreenath Manikandan, along with their colleague Francesco Giazotto from the…

July 9, 20199 minRead time

Miscellaneous

Physicists use light waves to accelerate supercurrents, enable ultrafast quantum computing

Jigang Wang patiently explained his latest discovery in quantum control that could lead to superfast computing based on quantum mechanics: He mentioned light-induced superconductivity without energy gap. He brought up forbidden supercurrent quantum beats. And he mentioned terahertz-speed symmetry breaking. Then he backed up and clarified all that. After all, the quantum world of matter…

July 9, 20194 minRead time

Miscellaneous Research News

Micro ring resonator has highest quality factor to date

Researchers at MIT and Singapore University of Technology (SUTD) have demonstrated a micro ring resonator made of amorphous silicon carbide with the highest quality factor to date. The resonator shows promise to be used as an on-chip photonic light source at the infrared telecom wavelength of 1,550 nanometers. Ordinary daylight will pass through a window…

July 9, 201913 minRead time

Miscellaneous

Phase transitions: The math behind the music

Next time you listen to a favorite tune or wonder at the beauty of a natural sound, you might also end up pondering the math behind the music. You will, anyway, if you spend any time talking with Jesse Berezovsky, an associate professor of physics at Case Western Reserve University. The longtime science researcher and…

July 6, 20195 minRead time

Miscellaneous

Big data shows how what we buy affects endangered species

The things we consume, from iPhones to cars to IKEA furniture, have costs that go well beyond their purchase price. What if the soybeans used to make that tofu you ate last night were grown in fields that were hewn out of tropical rainforests? Or if that tee-shirt you bought came from an industrial area…

July 6, 20194 minRead time

Miscellaneous

Brain cells for 3D vision discovered Neurons in insect brains that compute 3D distance and direction found

In stunning images captured under the microscope for the first time, the neurons were found in praying mantises. The work is published in Nature Communications today. In a specially-designed insect cinema, the mantises were fitted with 3D glasses and shown 3D movies of simulated bugs while their brain activity was monitored. When the image of the bug…

July 6, 20194 minRead time

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