A ground-breaking study conducted by researchers from the National University of Singapore (NUS) has revealed a method of using quantum mechanical wave theories to “lock” heat into a fixed position.
Ordinarily, a source of heat diffuses through a conductive material until it dissipates, but Associate Professor Cheng-Wei Qiu from the Department of Electrical and Computer Engineering at the NUS Faculty of Engineering and his team used the principle of anti-parity-time (APT) symmetry to show that it is possible to confine the heat to a small region of a metal ring without it spreading over time.
In the future, this newly demonstrated phenomenon could be used to control heat diffusion in sophisticated ways and optimize efficacy in systems that need cooling. The results of the study were published on 12 April 2019 in the journal Science.
Mikel Sanz, of the Physical Chemistry Department of UPV/EHU, leads the theoretical group for an experiment published by the prestigious journal, Nature Communications. The experiment has managed to prepare a remote quantum state; i.e., absolutely secure communication was established with another, physically separated quantum computer for the first time in the microwave regime. This new technology may bring about a revolution in the next few years.
Within the greater European project of the Quantum Flagship, spearheaded by Mikel Sanz—researcher of the QUTIS Group of the UPV/EHU Physical Chemistry Department—an experiment has been conducted in collaboration with German and Japanese researchers who have managed to develop a protocol for preparing a remote quantum state while conducting communication in the microwave regime, “which is the frequency at which all quantum computers operate. This is the first time the possibility of doing so in this range has been examined, which may bring about a revolution in the next few years in the field of secure quantum communication and quantum microwave radars,” lead researcher in this project Mikel Sanz observes.
The preparation of a remote quantum state (known as remote state preparation) is based on the phenomenon of quantum entanglement, where sets of entangled particles lose their individuality and behave as single entities, even when spatially separated. “Thus, if two computers share this quantum correlation, performing operations on only one of them can affect the other. Absolutely secure communication can be achieved,” Sanz explains.
Japanese spacecraft landed on the asteroid surface.
Hayabusa2 has collected a second sample from the asteroid’s surface. It could give us a unique insight into how the early solar system was formed.
The procedure: After a few hours of maneuvering, the spacecraft touched down on Ryugu’s surface at 9:15 p.m. US Eastern time yesterday. It then fired a bullet into the asteroid and collected some of the debris stirred up by the shot. The Japanese space agency JAXA tweeted that the mission had been a success and that the space probe had now left the surface again. It’s the second sampling mission after a similar one in April, and it required particularly careful preparations, because any problems could cause the materials gathered during the first operation to be lost. In April, Hayabusa2 had also fired a copper bomb into the asteroid’s surface to expose the rocks beneath, in anticipation of today’s mission.
Next steps: Hayabusa2 is scheduled to return to Earth at the end of this year, but before it does it has a final task: deploying a smaller rover called MINERVA-II2 later this summer. Its primary goal will be to explore in an environment where there is very little gravity.
Naruto running?
A Facebook event called “Storm Area 51, They Can’t Stop All of Us” has amassed an army of memers, schemers and tinfoil hat-wearing conspirators to raid the top-secret Air Force military base in the middle of Nevada’s desert.
Over 289,000 users confirmed they’re planning to come along, while 314,000 are “interested.” It’s gotten so big that the event is grabbing the attention of local and even international media.
Needless to say, the event itself is a joke, hosted by a Facebook group called “Shitposting cause im [sic] in shambles” made up of some 20,000 meme-loving netizens. The group classifies itself as a “religious organization” on the platform.
Warming can encourage the growth of microbes in permafrost that produce more greenhouse gases.
- By Chelsea Harvey, E&E News on July 10, 2019
A roadblock to sustainable energy solutions is coming unstuck.
- By Andrea Thompson on July 1, 2019
New possibilities for treating cancer and other ills.
- By Elizabeth O’Day on July 1, 2019