3 papers
quant-ph2026
Geometry Dependence of Error Thresholds in Two-Dimensional Toric Codes
D. Lessing, A. Langheld, C. Krämer +2
We investigate how the lattice geometry influences the error thresholds of two-dimensional toric codes. In the presence of bit- or phase-flip errors, the toric code maps onto the t…
cond-mat.str-el2025
Quantum decay of magnons in the unfrustrated honeycomb Heisenberg model
Calvin Krämer, Dag-Björn Hering, Vanessa Sulaiman +3
We investigate the physical properties of elementary magnon excitations of the ordered antiferromagnetic Heisenberg model on the honeycomb lattice using quantum Monte Carlo (QMC) s…
cond-mat.str-el2025
Quantum Monte Carlo study of the bond- and site-diluted transverse-field Ising model
C. Krämer, M. Hörmann, K. P. Schmidt
We study the transverse-field Ising model on a square lattice with bond- and site-dilution at zero temperature by stochastic series expansion quantum Monte Carlo simulations. Tunin…