Solid State Physics, Condensed Matter Physics, and Topological Physics!

Topological order in condensed matter physics Topological order in condensed matter physics

door Jesper Christian Romers geboren te Delft.

COnDEnsED MattEr PhysICs

COnDEnsED MattEr PhysICs

Physics , Condensed Matter Homework

The key insight of Bogoliubov is that although the mean-field Hamiltonian (1) is clearly not diagonal in the space of states created by the operators ck,↑/↓, it may be diagonal in a basis of states created by operators related to these via a simple SU2 transformation. Indeed, it may be the case that ‘electrons’ and ‘holes’ are the wrong degrees of freedom to consider; we should at least look to...

Physics 7450 : Solid State Physics 2 Lecture 3 : Bosonic matter

Abstract In these lectures, starting with a review of secondand coherent-state path-integral quantization, we will formulate a quantum field theory of bosonic matter and will study its thermodynamics and correlation functions. We will explore the transition to Bose-Einstein condensation (BEC) of noninteracting bosons. Including interactions, we will study the properties of a superfluid and a ph...