Search Results for: sum rules

Some Words on Sum Rules

In condensed matter physics, sum rules are used widely by both experimentalists and theorists. One can even go as far to say that sum rules provide us with a framework within which theories must exist, i.e. theories cannot violate the … Continue reading


December 2019 Whence we know the photon exists August 2019 The photoelectric effect does not imply photons August 2018 Critical Slowing Down February 2018 Pictures of Band Theory: A real space view of where bands and band gaps come from … Continue reading

Reflecting on General Ideas

In condensed matter physics, it is easy to get lost in the details of one’s day-to-day work. It is important to sometimes take the time to reflect upon what you’ve done and learned and think about what it all means. … Continue reading

A Plea for More Plots of the Energy Loss Function

In the modern landscape of condensed matter physics, it seems like while it is important to get a well-rounded and comprehensive view of the experimental status within each topic, that most physicists are biased towards their favorite standard experimental probes. … Continue reading