Published News Quantum Physics

New ways to make lithium-ion batteries cuts their cost (in half) with improved performance and recyclability | PV Buzz

An advanced manufacturing approach for lithium-ion batteries, developed by researchers at MIT and at a spinoff company called 24M, promises to significantly slash the cost of the most widely used type of rechargeable batteries while also improving their performance and making them easier to recycle.

“We’ve reinvented the process,” says Yet-Ming Chiang, the Kyocera Professor of Ceramics at MIT and a co-founder of 24M (and previously a co-founder of battery company A123). The existing process for manufacturing lithium-ion batteries, he says, has hardly changed in the two...

A 'movie' of ultrafast rotating molecules at a hundred billion per second

To visualize such an ultrafast molecular rotation, the team developed a Coulomb explosion imaging setup with regulating rotational direction by a pair of time-delayed, polarization-skewed laser pulses. In the sequential "snapshots", the team successfully reported high-resolution direct imaging of direction-controlled rotational wave packets (RWPs) in nitrogen molecules, and the quantum wave-like nature was successfully observed. The result will guide more sophisticated molecular manipulations, such as an ultrafast molecular "stopwatch".

Quantum mechanical monopoles experimentally identified -- ScienceDaily

Hall and Ray manipulated a gas of rubidium atoms prepared in a nonmagnetic state near absolute zero temperature in an atomic refrigerator in Hall's lab in Amherst's Merrill Science Center. Under these extreme conditions, they were able to create monopoles in the quantum field of the ultracold gas.

"In this nonmagnetic state, a structure was created in the field describing the gas resembling the magnetic monopole particle as described in grand unified theories of particle physics," said Aalto University (Finland) Academy Research Fellow Mikko Möttönen, a collaborator on the...

Quantum physics just got less complicated

Here's a nice surprise: quantum physics is less complicated than we thought. An international team of researchers has proved that two peculiar features of the quantum world previously considered distinct are different manifestations of the same thing. The result is published 19 December in Nature Communications.

Evidence for new Higgs-related particle fades away | Science News

A fresh analysis of data from the particle collider that delivered the Higgs boson has dashed physicists’ sliver of hope that another new particle had emerged from the subatomic shrapnel.

“We’ve learned that there’s no obvious Godzilla particle hiding with the Higgs,” says Tim Tait, a theoretical physicist at the University of California, Irvine. “Now we’re going to have to look for more subtle signs of new particles.” Discovering particles beyond the Higgs could help physicists understand mysterious components of the universe such as dark matter, which holds...

Phys.Org : Simon's algorithm run on quantum computer for the first time—faster than on standard computer

A team of researchers working in South Africa has reported that they've successfully run Simon's algorithm on a quantum computer for the first time. In their paper published in Physical Review Letters, the team describes how they ran the algorithm, the results they found and what doing so means for the future of quantum computing.

New dimension for integrated circuits: 3-D nanomagnetic logic -- ScienceDaily

Electrical engineers have demonstrated a new kind of building block for digital integrated circuits. Their experiments show that future computer chips could be based on three-dimensional arrangements of nanometer-scale magnets instead of transistors. As CMOS, the main enabling technology of the semiconductor industry, approaches fundamental limits, researchers are exploring 'magnetic computing' as an alternative.

Quantum environmentalism: Putting a qubit's surroundings to good use -- ScienceDaily

A qubit's environment, usually viewed as a threat to coherence, here serves as an aid to manipulating and interrogating the qubit.

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