Category archives: Physics

Einstein and quantum solids

Einstein and quantum solids

Condensed matterPhysics

By DIPC

One of the first recognized successes of the early quantum theory arose, not from the study of radiation, but from the theory of solids. Once again in the physics of the first half of the 20th century Albert Einstein was at the forefront; but this time the story is seldom told. After presenting the hypothesis […]

Clearly placed before the mathematical mind

Clearly placed before the mathematical mind

HistoryPhysics

By DIPC

We recently explored the concepts that Faraday introduced regarding the relationship between electricity and magnetism. In this article we focus on their treatment by Maxwell. The work of Oersted, Ampere, Henry, and finally Faraday had established two basic principles of electromagnetism: 1. An electric current in a conductor produces magnetic lines of force that circle […]

The sky is blue, clouds are white, and the transmission of light through dense media

The sky is blue, clouds are white, and the transmission of light through dense media

Condensed matterPhysics

By DIPC

Newton suggested that the apparent colours of natural objects depend on which colour is most strongly reflected or scattered to the viewer by the object. In general, there is no simple way of predicting from the surface structure, chemical composition, etc., what colours a substance will reflect or scatter. However, the blue colour of the […]

Shrinking plasmonic nanomatryoshkas

Shrinking plasmonic nanomatryoshkas

Condensed matterMaterialsPhysicsQuantum physics

By DIPC

We know that incident light can provoke a strong optical response in metallic nanostructures due to the excitation of resonant plasmonic modes, i.e, the electrons in the metal become excited by the photons in the incident light and oscillate collectively. One of the most interesting properties of plasmon resonances is their associated enhancement and confinement […]

The geometry of String Compactifications (III): exploring the Calabi-Yau manifold

The geometry of String Compactifications (III): exploring the Calabi-Yau manifold

PhysicsTheoretical physics

By Carlos Shahbazi

In the previous articles (I, II), we have characterized the simplest class of supersymmetric heterotic compactification backgrounds. In particular, we have finished the second article with the following result: There is a class of admissible Heterotic internal manifolds characterized as being six-dimensional, oriented, spin, Riemannian compact manifolds admitting a parallel spinor respect to the Levi-Civita […]

Visualizing charge oscillations on a metal surface

Visualizing charge oscillations on a metal surface

Condensed matterMaterialsPhysicsQuantum physics

By DIPC

With “many-body problem” we usually make reference to one that is very difficult to obtain exact solutions for, because the system involves interactions between more than two bodies. This kind of problem appears both in classical and quantum systems. In order to understand the physics of many-body systems, it is necessary to make use of […]

Effects of defects and water on perovskite solar cells

Effects of defects and water on perovskite solar cells

ChemistryCondensed matterEnergyMaterialsPhysics

By DIPC

The German mineralogist Gustav Rose (1798 – 1873) made important contributions in the fields of petrology and crystallography. He was the first to use a reflective goniometer in Germany and developed a particular interest in the relationship between the crystalline form and the physical properties of minerals. As a consequence, he contributed significantly to the […]