Condensed concepts

 Spontaneous symmetry breaking is a fundamental concept in condensed matter and quantum field theory. Amongst philosophers of science the co...

The comet C/2022 E3 (ZTF) getting a lot of attention , pointed out to me by my friend Alexey. Why is it green? This basic question turns out...

Roald Hoffmann and Jean-Paul Malrieu are two of my favourite living theoretical chemists. Both greatly value the role of concepts and intell...

Life is truly amazing! Life is beautiful! ...and it involves quantum many-body physics... There is a beautiful (short) review Heme: Fro...

A long-standing question for superconductivity in organic charge transfer salts concerns the symmetry of the superconducting order parameter...

Solid state physicists love model effective Hamiltonians such as Hubbard, Heisenberg, Anderson, and Holstein because they are simple but hav...

Nitrogen fluoride (NF) seems like a very simple molecule and you would think it would very well understood, particularly as it is small enou...

Previously I posted about  improper hydrogen bonds.  These are weak hydrogen bonds that have the unusual property that in the X-H...Y system...

In several posts I have emphasised that Chemistry is local. This is illustrated by the fact that specific bonds within a molecule have appr...

Roald Hoffmann and Sason Shaik are two of my favourite theoretical chemists. They have featured in a number of my blog posts. I particularly...