Regularized Second-Order Correlation {Methods|Techniques|Strategies|Approaches|Procedures|Solutions} for Extended Systems
{While|Whilst|Although|Even though|When|Though} many-body wavefunction theory has {long|lengthy|extended} been established as a {powerful|potent|effective|strong|highly effective} framework for {highly|extremely|very|hugely} {accurate|correct|precise} molecular quantum chemistry, these {methods|techniques|strategies|approaches|procedures|solutions} have only {fairly|pretty|relatively} {recently|lately|not too long ago} been…