2024 CAP Congress / Congrès de l'ACP 2024

(G) Concurrence on a 16-site spin-1/2 pyrochlore cluster

30 May 2024, 09:15

15m

PAB Rm 106 (cap. 96) (Physics & Astronomy Bldg., Western U.)

Oral not-in-competition (Graduate Student) / Orale non-compétitive (Étudiant(e) du 2e ou 3e cycle) Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM) (DCMMP) R1-5 Quantum Materials II | Matériaux quantiques II (DPMCM)

Speaker

chen wei

Description

We use the methods of group theory to completely block-diagonalize the
general, 4-parameter exchange Hamiltonian of a 16-site spin-1/2
pyrochlore cluster. By using the reduced density matrices, we can
calculate the concurrence between different spin sites at T=0 and when T
is small.