Performing studies on a doubly magic isotope of tin, researchers have shown that the pion condensation should occur at around two times normal nuclear density, which can be realized in a neutron star with a mass of 1.4 times that of the Sun.
'Topological materials' produce electron states that can be very interesting for technical applications, but it is extremely difficult to identify these materials and their associated electronic states. A 'crystal' made of light waves can now be used to deliberately drive the system out of equilibrium. By switching between simple and complicated states, the system reveals whether or not it has topologically interesting states.
In a recent publication in Science, researchers at the University of Paderborn and the Fritz Haber Institute Berlin demonstrated their ability to observe electrons' movements during a chemical reaction.
A team of researchers from Russia, Great Britain, Japan, and Italy has created a graphene-based terahertz detector. Their device doubles up as a sensitive detector and a spectrometer operating in the terahertz range, and it's also a tool for studying plasmons in two-dimensional materials. All of these things existed before, but they took up a whole optical table. Researchers packed the same functionality into a dozen micrometers.
Theoretical physicists have been questioning if black hole singularities exist through complex mathematical equations over the past several decades with little success until now. LSU Department of Physics & Astronomy Associate Professor Parampreet Singh and collaborators LSU Postdoctoral Researcher Javier Olmedo and Abhay Ashtekar, the Eberly Professor of Physics at Penn State developed new mathematical equations that go beyond Einstein's theory of general relativity overcoming its key limitation -- the central singularity of black holes.
A team from the Institute of Experimental and Applied Physics at Kiel University has now succeeded in investigating the energy exchange of the electrons with their environment in real time, and thereby distinguishing individual phases. In their experiment, they irradiated graphite with an intense, ultrashort light pulse and filmed the impact on the behaviour of electrons. Their findings are published in the current edition of the journal Physical Review Letters.
Researchers from the U.S. Army and top universities discovered a new way to get more energy out of energetic materials containing aluminum, common in battlefield systems, by igniting aluminum micron powders coated with graphene oxide.
An international team of researchers has described an extended quantum Maxwell's demon, a device locally violating the second law of thermodynamics in a system located 1-5 meters away from the demon. The device could find applications in quantum computers and microscopic refrigerators cooling down tiny objects with pinpoint accuracy.
A team of scientists has for the first time measured the elusive weak interaction between protons and neutrons in the nucleus of an atom. They had chosen the simplest nucleus consisting of one neutron and one proton for the study. Through a unique neutron experiment at Oak Ridge National Laboratory, experimental physicists resolved the weak force between the particles at the atom's core, predicted in the Standard Model that describes the elementary particles and their interactions.
Chief scientist of the US Army's corporate laboratory handpicks the 'coolest' advances to showcase what Army scientists and engineers are doing to support the Soldier of the future with a 'Top 10' list from 2018.