*Here's Now you have and So from this equation, you can say That gives you the first- and second-order corrections to the energy, according to perturbation theory. Note that for this equation to converge, the term in the summation must ...*

**Author**: Steven Holzner

**Publisher:** John Wiley & Sons

**ISBN:** 9780470381885

**Category:** Science

**Page:** 336

**View:** 911