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 CERN: Physics      String Theory


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The Simple Idea Behind Einstein’s Greatest Discoveries
Posted on Wednesday June 26, 2019

Lurking behind Einstein’s theory of gravity and our modern understanding of particle physics is the deceptively simple idea of symmetry. But physicists are beginning to question whether focusing on symmetry is still as productive as it once was.

Philosophers Debate New ‘Sonic Black Hole’ Discovery
Posted on Tuesday June 25, 2019

Opinions differ about what recent measurements of a sound-trapping fluid reveal about light-trapping black holes.

What’s in a Name? Taxonomy Problems Vex Biologists
Posted on Monday June 24, 2019

Researchers struggle to incorporate ongoing evolutionary discoveries into an animal classification scheme older than Darwin.

When Magic Is Seen in Twisted Graphene, That’s a Moiré
Posted on Thursday June 20, 2019

What do moiré patterns seen in optics, art, photography and color printing have to do with superconducting layers of graphene?

How to Turn a Quantum Computer Into the Ultimate Randomness Generator
Posted on Wednesday June 19, 2019

Pure, verifiable randomness is hard to come by. Two proposals show how to make quantum computers into randomness factories.

Research reveals exotic quantum states in double-layer graphene
Posted on Tuesday June 25, 2019

Researchers have demonstrated previously unknown states of matter that arise in double-layer stacks of graphene, a two-dimensional nanomaterial. These new states, known as the fractional quantum Hall effect, arise from the complex interactions of electrons both within and across graphene layers.

Helping physics teachers who don't know physics
Posted on Tuesday June 25, 2019

A shortage of high school physics teachers has led to teachers with little-to-no training taking over physics classrooms, reports show. This has led to additional stress and job dissatisfaction for those teachers -- and a difficult learning experience for their students. But new research indicates that focused physics professional development for teachers -- even those who have no prior physics training -- can lead to better experiences for both students and teachers, and can improve students' understanding of physics concepts.

Machine learning reveals how strongly interacting electrons behave at atomic level
Posted on Tuesday June 25, 2019

A team of scientists collaborating across theoretical and experimental physics and computer science, have developed and trained a new Machine Learning (ML) technique, to finally understand how electrons behave in important quantum materials.

A further step towards reliable quantum computation
Posted on Tuesday June 25, 2019

A team of physicists introduces a novel technique to detect entanglement even in large-scale quantum systems with unprecedented efficiency. This brings scientists one step closer to the implementation of reliable quantum computation. The new results are of direct relevance for future generations of quantum devices.

How to bend waves to arrive at the right place
Posted on Monday June 24, 2019

Under certain circumstances, a wave can split into several paths, reaching some places with high intensity, while avoiding others almost completely. This kind of 'branched flow' has first been observed in 2001. Scientists have now developed a method to exploit this effect. The core idea of this new approach is to send a wave signal exclusively along one single pre-selected branch, such that the wave is hardly noticeable anywhere else.