Lifeboat Foundation

Next stop: the desk of President Trump.

The U.S. is ready to invest big in quantum computing.

Researchers from the Moscow Institute of Physics and Technology, ETH Zurich, and Argonne National Laboratory, U.S, have described an extended quantum Maxwell’s demon, a device locally violating the second law of thermodynamics in a system located 1–5 meters away from the demon. The device could find applications in quantum computers and microscopic refrigerators cooling down tiny objects with pinpoint accuracy. The research was published Dec. 4 in Physical Review B.

The second law says that the entropy — that is, the degree of disorder or randomness — of an isolated system never decreases.

“Our demon causes a device called a qubit to transition into a more orderly state,” explained the study’s lead author Andrey Lebedev of MIPT and ETH Zurich. “Importantly, the demon does not alter the qubit’s energy and acts over a distance that is huge for quantum mechanics.”

https://paper.li/e-1437691924#/

A team of researchers from Austria, Italy and Sweden has successfully demonstrated teleportation using on-demand photons from quantum dots. In their paper published in the journal Science Advances, the group explains how they accomplished this feat and how it applies to future quantum communications networks.

Scientists and many others are very interested in developing truly quantum communications networks—it is believed that such networks will be safe from hacking or eavesdropping due to their very nature. But, as the researchers with this new effort point out, there are still some problems standing in the way. One of these is the difficulty in amplifying quantum signals. One way to get around this problem, they note, is to generate photons on-demand as part of a quantum repeater—this helps to effectively handle the high clock rates. In this new effort, they have done just that, using semiconductor quantum dots.

Continue reading “Researchers demonstrate teleportation using on-demand photons from quantum dots” »

IonQ, one of many companies developing a quantum computer, has announced a new trapped ion quantum computer with 79 processing qubits. The company claims this quantum computer should beat Google’s 72-qubit quantum computer, not just in terms of number of qubits, but also in total processing performance.

By Chinese Satellite with 24.9 billion pixels of quantum technology. It’s worth seeing! You can zoom in, zoom out when you look at it. You can clearly see every gesture, even face of pedestrians on the road.

http://sh-meet.bigpixel.cn/?from=groupmessage

MIT researchers invented a method of shrinking objects to the nanoscale.

The team can generate structures one-thousandth the volume of the original using a variety of materials, including metals, quantum dots, and DNA.

Existing techniques—like etching patterns onto a surface with light—work for 2D nanostructures, but not 3D. And while it’s possible to make 3D nanostructures, the process is slow, challenging, and restrictive.

Continue reading “MIT Researchers Can Shrink Objects to Nanoscale” »

An Interview with Christian Weedbrook, CEO of Xanadu Quantum Technologies.

Researchers have invented a new way to fabricate nanoscale 3D objects of nearly any shape. They can also pattern the objects with a variety of useful materials, including metals, semiconducting quantum dots, and DNA.

Another advancement in the field of optomechanics comes in the form of a recent study involving the use of a device designed for achieving an optimal controlled position of trapped nanoparticles.