Search results for dirac

Mathematics Apr 11, 2022

A universe without mathematics is beyond the scope of our imagination

Almost 400 years ago, in "The Assayer," Galileo wrote: "Philosophy is written in this grand book, the universe … [But the book] is written in the language of mathematics." He was much more than an astronomer, and this can ...

Condensed Matter Mar 28, 2022

External magnetic field causes shift in electronic Dirac band structure in a kagome magnet

Working with a quantum material known as a kagome magnet, a team of Boston College physicists and colleagues have directly measured how individual electronic quantum states in the novel material respond to external magnetic ...

Quantum Physics Mar 22, 2022

A strange monopole observed in diamond: When string theory inspires quantum simulation

Theoretical physicists routinely introduce fictitious particles and fields in their calculations, in view of completing a theory or simply to make it more elegant. A striking example concerns the magnetic monopole imagined ...

Quantum Physics Mar 14, 2022

New study reveals topological charge-entropy relation in kagome Chern magnet

Topological charge-entropy scaling relation was proved in the kagome Chern magnet, a kind of magnet predicted to support intrinsic Chern quantum phases, according to a study published on Nature Communications.

Condensed Matter Mar 4, 2022

Physicists discover method for emulating nonlinear quantum electrodynamics in a laboratory setting

On the big screen, in video games and in our imaginations, lightsabers flare and catch when they clash together. In reality, as in a laser light show, the beams of light go through each other, creating spiderweb patterns. ...

Astronomy Feb 10, 2022

Scientists unveil most accurate virtual representation of the universe

Scientists have produced the largest and most accurate virtual representation of the universe to date. An international team of researchers, led by the University of Helsinki, and including members from Durham University, ...

Optics & Photonics Feb 8, 2022

Modeling high-harmonic generation without resorting to perturbation theory

An advanced mathematical model that can describe high-energy interactions between light and matter has been developed by two RIKEN researchers and a collaborator. The approach could be extended to offer new insights in other ...

General Physics Jan 25, 2022

Physicist solves century old problem of radiation reaction

A Lancaster physicist has proposed a radical solution to the question of how a charged particle, such as an electron, responded to its own electromagnetic field.

Condensed Matter Jan 21, 2022

A nonlinear-transport perspective of field-induced phase transitions in pentatellurides

Combining topological states of matter with strong electron correlation promises many exotic phenomena such as charge fractionalization, excitonic instability, and axionic excitation. Layered transition-metal pentatellurides ...

Quantum Physics Dec 22, 2021

New materials for quantum technologies

While conventional electronics relies on the transport of electrons, components that convey spin information alone may be many times more energy efficient. Physicists at the Technical University of Munich (TUM) and the Max ...

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