BCS theory

9 posts

At last, physicists report finding the 'fourth sign' of superconductivity

5 min read
Scicomm ARPES BCS theory Bi-2212 BSCCO conventional superconductor cuprate superconductor high-temperature superconductor Meissner effect photoemission spectroscopy specific heat coefficient Stanford University

Using an advanced investigative technique, researchers at Stanford University have found that cuprate superconductors – which become superconducting at higher temperatures than their better-known conv…

Physicists observe long-expected helium superfluid phase

5 min read
Scicomm Anthony Leggett BCS theory Cooper pairs helium 3 A phase helium 3 ß phase helium 3 P phase helium 3 superfluidity helium 4 helium-3 nematic aerogel neutron stars superconductivity symmetry-breaking Vladimir Dmitriev

Physicists have reported that they have finally observed helium 3 existing in a long-predicted type of superfluid, called the ß phase. This is an important discovery, if it's borne out, for reaso…

A tale of vortices, skyrmions, paths and shapes

9 min read
Scicomm Science anyons BCS theory chiral magnets condensed matter physics David Thouless Kosterlitz-Thouless transition materials science Nanyang Technical University orbital angular momentum p-wave superconductor path dependency phase transition quantum computers quasiparticles Rashba-Edelstein effect s-wave superconductor skyrmion-vortex coupling skyrmions solid state physics superconductors supercurrent topological excitations topology Vijay Shenoy

There are many types of superconductors. Some of them can be explained by an early theory of superconductivity called Bardeen-Cooper-Schrieffer (BCS) theory. In these materials, vibrations in the ato…

The awesome limits of superconductors

8 min read
Scicomm Abrikosov vortex lattice Abrikosov vortices BCS theory Bose-Einstein condensate CERN Cooper pairs copper electrical conductivity electrical resistivity electrons flux-flow resistance Joule heating Large Hadron Collider Lisa Randall magnesium diboride magnetic flux Meissner effect niobium Pauli's exclusion principle Praveen Chaddah protons silver superconductors superfluid helium titanium type I superconductors type II superconductors vortex pinning

On June 24, a press release from CERN said that scientists and engineers working on upgrading the Large Hadron Collider (LHC) had "built and operated … the most powerful electrical transmission l…

Superconductivity: From Feshbach to Fermi

8 min read
Uncategorized 1-2-3 superconductors absolute zero BCS theory Bose-Einstein condensates Cooper pairs crystal lattice Fermi energy Fermi-Dirac statistics Feshbach resonance Meissner effect Pauli's exclusion principle phonons superconductivity

(This post is continued from this one.) After a bit of searching on Wikipedia, I found that the fundamental philosophical underpinnings of superconductivity were to be found in a statistical concept…