Talks by Aaron Szasz

Summer Undergrad 2020 - Numerical Methods (A) - Lecture 5

Aaron Szasz Perimeter Institute for Theoretical Physics

Exact diagonalization part 3: Expectation values and correlation functions in the  Ising model GS, using these and energy gaps to identify a quantum phase transition; Demonstration of using matrix product states for the Ising model

Chiral spin liquid phase of the triangular lattice Hubbard model: evidence from iDMRG in a mixed real- and momentum-space basis

Aaron Szasz Perimeter Institute for Theoretical Physics

Experiments on organic crystals whose structure is well-described by the two-dimensional triangular lattice have found a lack of magnetic ordering down to the lowest accessible temperatures, indicative of a quantum spin liquid phase; however, the precise nature of this phase remains an open question.  In this talk, I present strong evidence that the triangular lattice Hubbard model at half filling, a physically motivated model of these organic crystals, realizes a chiral spin liquid phase.  In particular, I show that the model has a nonmagnetic insulating phase between a metallic phase for