Physics

Wandering Stars Pass Near Our Solar System Surprisingly Often

Our sun has had close encounters with other stars in the past, and it’s due for a dangerously close one in the not-so-distant future.

Broadest microcomb spectral span on record

Engineers have achieved the broadest recorded spectral span in a microcomb.

Capturing the coordinated dance between electrons and nuclei in a light-excited molecule

Using SLAC's high-speed 'electron camera,' scientists simultaneously captured the movements of electrons and nuclei in a light-excited molecule. This marks the first time this has been done with ultrafast electron diffraction, which scatters a powerful beam of electrons off materials to pick up tiny molecular motions.

Capturing the coordinated dance between electrons and nuclei in a light-excited molecule

Using a high-speed "electron camera" at the Department of Energy's SLAC National Accelerator Laboratory, scientists have simultaneously captured the movements of electrons and nuclei in a molecule after it was excited with light. This marks the first time this has been done with ultrafast electron diffraction, which scatters a powerful beam of electrons off materials to pick up tiny molecular motions.

Pluto's Weird Atmosphere Just Collapsed

The dramatic fall in atmospheric pressure on Pluto is much larger than astronomers expected

'One-way' electronic devices enter the mainstream

Engineers are the first to build a high-performance non-reciprocal device on a compact chip with a performance 25 times better than previous work. The new chip, which can handle several watts of power (enough for cellphone transmitters that put out a watt or so of power), was the leading performer in a DARPA SPAR program to miniaturize these devices and improve performance metrics.

Searching for scalar dark matter using compact mechanical resonators

Researchers at University of Delaware, University of Arizona and Haverford College have recently introduced the idea of searching for scalar dark matter using compact acoustic resonators. Their paper, published in Physical Review Letters, theoretically demonstrates the potential of mechanical systems in searching for dark matter.

Cosmic rays may have left indelible imprint on early life, physicists say

Before there were animals, bacteria or even DNA on Earth, self-replicating molecules were slowly evolving their way from simple matter to life beneath a constant shower of energetic particles from space.

Team builds hybrid quantum system by entangling molecule with atom

Physicists have boosted their control of the fundamental properties of molecules at the quantum level by linking or 'entangling' an electrically charged atom and an electrically charged molecule, showcasing a way to build hybrid quantum information systems that could manipulate, store and transmit different forms of data.

Attosecond physics: Quantum brakes in molecules

Physicists have measured the flight times of electrons emitted from a specific atom in a molecule upon excitation with laser light. This has enabled them to measure the influence of the molecule itself on the kinetics of emission.

Pages

Subscribe to Mr. Loyacano RSS