New posts in Condensed Matter

General method of deriving the mean field theory of a microscopic theory

What's the reasons to use time-ordering operator?

What is the Fermi Surface?

Why do superconductors conduct electricity without resistance?

For lattice, what are the Goldstone bosons for the broken rotation symmetries?

1+1d TSC as $Z_2^f $ symmetry breaking topological order?

What is a strongly correlated system (in condensed matter physics)?

How does superfluids and Bose-Einstein Condensates form?

Relationship between crystal momentum and true momentum

Validity of mean-field approximation