Cooper hybridisation

Here's an explanation of both:

1. Hybridization (or hybridisation): In chemistry, hybridization is the concept of mixing atomic orbitals to form new hybrid orbitals. These hybrid orbitals have different shapes and energies than the original atomic orbitals and are more suitable for the pairing of electrons to form chemical bonds. This concept helps explain molecular geometry and bonding in many molecules. Common types include $\text{sp}$, $\text{sp}^2$, and $\text{sp}^3$ hybridization.

2. Cooper pairs: In physics, Cooper pairs are pairs of electrons (or other fermions) that are bound together at low temperatures in a superconductor. Despite the electrons being negatively charged and thus repelling each other, they can form pairs due to an attractive interaction mediated by phonons (lattice vibrations) in the material. The formation of Cooper pairs is fundamental to the phenomenon of superconductivity.

Therefore, while both hybridization and Cooper pairs are important scientific concepts, the term "Cooper hybridisation" does not describe a known phenomenon.