K. P. Schmidt

activity

20132026

most citedMutually attracting spin waves in the square-lattice quantum antiferromagnet

57 citations · 283 across the 25 of their papers we have counts for

collaborators

Showing 2023Show all

3 papers · 1 filter

cond-mat.str-el2023★ 1 cited

Order-by-disorder in the antiferromagnetic $J_{1}$ - $J_{2}$ - $J_{3}$ transverse-field Ising model on the ruby lattice

A. Duft, J. A. Koziol, P. Adelhardt +2

We investigate the quantum phase diagram of the $J_{1}$ - $J_{2}$ - $J_{3}$ antiferromagnetic transverse-field Ising model on the ruby lattice. In the low-field limit we derive an effective…

cond-mat.quant-gas2023★ 7 cited

Quantum phases of hardcore bosons with repulsive dipolar density-density interactions on two-dimensional lattices

J. A. Koziol, G. Morigi, K. P. Schmidt

We analyse the ground-state quantum phase diagram of hardcore Bosons interacting with repulsive dipolar potentials. The bosons dynamics is described by the extended-Bose-Hubbard Ha…

cond-mat.str-el2023★ 6 cited

Series expansions in closed and open quantum many-body systems with multiple quasiparticle types

L. Lenke, A. Schellenberger, K. P. Schmidt

The established approach of perturbative continuous unitary transformations (pCUTs) constructs effective quantum many-body Hamiltonians as perturbative series that conserve the num…

Order-by-disorder in the antiferromagnetic J1​-J2​-J3​ transverse-field Ising model on the ruby lattice

Quantum phases of hardcore bosons with repulsive dipolar density-density interactions on two-dimensional lattices

Series expansions in closed and open quantum many-body systems with multiple quasiparticle types

Order-by-disorder in the antiferromagnetic $J_{1}$ - $J_{2}$ - $J_{3}$ transverse-field Ising model on the ruby lattice