66 citations · 223 across the 13 of their papers we have counts for
13 papers
Ground State Properties of the Doped Kitaev-Heisenberg Chain: Topological Superconducting and Mott Insulating Phases Driven by Magnetic Frustration
Cliò Efthimia Agrapidis, Satoshi Nishimoto
We study the hole-doped Kitaev-Heisenberg chain using the density-matrix renormalization group. In the Kitaev-only limit, the bond-directional exchange itself promotes pairing, fav…
Self-organised magnon condensation in quasi-1D edge-shared cuprates without external fields
Cliò Efthimia Agrapidis, Stefan-Ludwig Drechsler, Satoshi Nishimoto
Multimagnon bound states were predicted nearly a century ago and have since been a key topic in condensed matter physics due to their intriguing quantum properties. However, their…
Existence of two distinct valence bond solid states in the dimerized frustrated ferromagnetic -- chain
Jędrzej Wardyn, Satoshi Nishimoto, Cliò Efthimia Agrapidis
We study the frustrated and dimerized ferromagnetic-antiferromagnetic -- chain using the density-matrix renormalization group (DMRG) method. Based on numerical calc…
Rare collapse of fermionic quasiparticles upon coupling to local bosons
Piotr Wrzosek, Adam Kłosiński, Krzysztof Wohlfeld +1
We study the stability of the fermionic quasiparticle in a fermion-boson model on a Bethe lattice, with fermions interacting with local bosons via a polaronic-type coupling. We sol…
Topology of chalcogen chains
Adam Kłosiński, Wojciech Brzezicki, Alexander Lau +4
We investigate the topological properties of the helical atomic chains occurring in elemental selenium and tellurium. We postulate a realistic model that includes spin-orbit intera…
Unravelling the Nature of Spin Excitations Disentangled from Charge Contributions in a Doped Cuprate Superconductor
Wenliang Zhang, Cliò Efthimia Agrapidis, Yi Tseng +7
The nature of the spin excitations in superconducting cuprates is a key question toward a unified understanding of the cuprate physics from long-range antiferromagnetism to superco…