Abstract: The effects of valence band mixing on the nonlinear gains of quantum-well lasers are studied theoretically for the first time. The analysis is based on the multiband effective-mass theory ...

Contribution from the School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, Department of Chemistry, The University of Arizona, Tucson, Arizona 85721-0041 ...

Inspired by the linearized adiabatic connection (AC0) theory, an approximation to second-order N-electron valence state perturbation theory (NEVPT2) has been developed, termed NEVPT within singles ...

FIRST ON FOX: The Department of Labor announced on Tuesday that it has terminated $400 million dollars in spending it has deemed wasteful through its Department of Government Efficiency (DOGE ...

Helium-3 is rare on terra firma, but is thought to be abundant in the regolith of the Moon. Interlune has now revealed a full-scale excavator prototype that forms a key component of its lunar ...

As the Universe cooled, after about 300,000 years, protons and electrons began to come together to form neutral hydrogen (and a little bit of helium) gas. Most wavelengths of light could penetrate ...

The vehicle is intended to mine resources like helium-3 from the moon’s surface. Such an endeavor could be a game-changer for Earth’s future technology and energy needs. Helium-3 is a rare ...

Aerobavovna, a Ukrainian startup, is making helium-filled balloons to aid Ukraine's drone attacks. Its balloons help to keep drones on the grid when they're on the ground or flying low.

Muonic helium-3 is a special form of helium in which the atom s two electrons are replaced by a single, much heavier muon. A research team led by Professor Randolf Pohl from the Institute of ...

Scientists have developed a simulation that can predict how tens of thousands of electrons move in materials in real time, or natural time rather than compute time. Developed by a team from the ...

“In conversations about this after the event, Ms. Harris was forthcoming about her choices while also acknowledging that she sought to infuse the words of others with her own emotional valenc ...

In our approach, emotion recognition was treated as a regression problem and a two-dimensional valence-arousal model was used to measure emotions in music. We used features extracted by Essentia and ...