Condensed concepts

Crystals of large molecules exhibit diverse structures. In other words, the geometric arrangements of the molecules relative to one another ...

Superconductivity beautifully illustrates the characteristics of emergent properties. Novelty.  Distinct properties of the superconducting s...

 Discovering new materials with functional properties is hard, very hard. We need all the tools we can from serendipity to high-performance ...

What is condensed matter physics about?  In his beautiful book, The Problems of Physics (originally published in 1987), Leggett has a nice ...

Mean- field theory (self-consistent field theory) is incredibly valuable. It  gives significant insights into what is possible with a partic...

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

Most of my posts on spin-crossover materials have been concerned with organometallic compounds. However, this phenomena can also occur in in...

In any crystal the elementary excitations of the lattice are phonons. The dispersion relation for these quasi-particles relates their energy...

A basic question concerning spin crossover compounds is what are the energy difference and entropy difference between the low spin (LS) and...

An important step in understanding any class of complex materials is to find/discover the simplest possible effective Hamiltonian that can ...

An interesting feature of spin-crossover compounds is that the transition from low-spin to high-spin with increasing temperature is usually...

As I have written many times before, water is fascinating, a rich source of diverse and unusual phenomena, and an unfortunate source of spur...

Two of my UQ colleagues have a nice preprint that brings together many fascinating subjects including strong electron correlations and MOF ...

Update. 14 Jan. 2026. I just learned that the paper discussed in this post was retracted last year. "following concerns raised about th...

A central concept of quantum-many body theory is that of coherent quasi-particles. Their key property is a well-defined relationship between...