163 citations · 719 across the 13 of their papers we have counts for
13 papers
Phase diagrams of vortex matter with multi-scale inter-vortex interactions in layered superconductors
Qingyou Meng, Christopher N. Varney, Hans Fangohr +1
It was recently proposed to use the stray magnetic fields of superconducting vortex lattices to trap ultracold atoms for building quantum emulators. This calls for new methods for…
Honeycomb, square, and kagomé vortex lattices in superconducting systems with multi-scale inter-vortex interactions
Qingyou Meng, Christopher N. Varney, Hans Fangohr +1
The recent proposal of Romero-Isart {\em et al.}~\cite{romero-isart_superconducting_2013} to utilize the vortex lattice phases of superconducting materials to prepare a lattice for…
Hierarchical structure formation in layered superconducting systems with multi-scale inter-vortex interactions
Christopher N. Varney, Karl A. H. Sellin, Qingze Wang +2
We demonstrate formation of hierarchical structures in two-dimensional systems with multiple length scales in the inter-particle interaction. These include states such as clusters…
Bold Diagrammatic Monte Carlo Method Applied to Fermionized Frustrated Spins
S. A. Kulagin, N. Prokof'ev, O. A. Starykh +2
We demonstrate, by considering the triangular lattice spin-1/2 Heisenberg model, that Monte Carlo sampling of skeleton Feynman diagrams within the fermionization framework offers a…
Quantum phases of hard-core bosons in a frustrated honeycomb lattice
Christopher N. Varney, Kai Sun, Victor Galitski +1
Using exact diagonalization calculations, we investigate the ground-state phase diagram of the hard-core Bose-Hubbard-Haldane model on the honeycomb lattice. This allows us to prob…
Bold Diagrammatic Monte Carlo technique for frustrated spin systems
Sergey Kulagin, Nikolay Prokof'ev, Oleg Starykh +2
Using fermionic representation of spin degrees of freedom within the Popov-Fedotov approach we develop an algorithm for Monte Carlo sampling of skeleton Feynman diagrams for Heisen…