59 citations · 99 across the 9 of their papers we have counts for
9 papers
Cooper quartets and fractional vortices in frustrated Josephson junction dice arrays
Erik Lennart Weerda, Olav F. Syljuåsen, Matteo Rizzi +1
Superconductivity mediated by Cooper quartets of charge 4e is a phenomenon of key importance for both the understanding of certain exotic superconductors and the engineering of qua…
Weak first-order phase transition out of the classical kagome spin liquid
Cecilie Glittum, Olav F. Syljuåsen
The low-temperature fate of the spin-liquid regime in the classical kagome Heisenberg antiferromagnet has been debated for over three decades. Using an expansion in the number of s…
Nematostriction in frustrated two-dimensional Heisenberg models
Olav F. Syljuåsen, Jens Paaske
We investigate the nematic phase transition in the Heisenberg --model on square and triangular lattices, accounting for finite lattice compressibility and bond-length-dep…
Field-induced Multi- States in a Pyrochlore Heisenberg Magnet
Cecilie Glittum, Olav F. Syljuåsen
We construct exact ground states of the - classical Heisenberg model on the pyrochlore lattice in the presence of a magnetic field. They are non-coplanar multi-$\vec{Q…
Widely existing mixed phase structure of quantum dimer model on square lattice
Zheng Yan, Zheng Zhou, Olav F. Syljuåsen +4
Since constraints hinder the application of numerical algorithms, phase diagrams of quantum dimer models are still controversial, even on the square lattice. The core controversy i…
Interplay between Magnetic and Vestigial Nematic Orders in the Layered - Classical Heisenberg Model
Olav F. Syljuåsen, Jens Paaske, Michael Schecter
We study the layered - classical Heisenberg model on the square lattice using a self-consistent bond theory. We derive the phase diagram for fixed as a function of…
Sweeping cluster algorithm for quantum spin systems with strong geometric restrictions
Zheng Yan, Yongzheng Wu, Chenrong Liu +3
Quantum spin systems with strong geometric restrictions give rise to rich quantum phases such as valence bond solids and spin liquid states. However, the geometric restrictions oft…
Cooper Pair Induced Frustration and Nematicity of Two-Dimensional Magnetic Adatom Lattices
Michael Schecter, Olav F. Syljuåsen, Jens Paaske
We propose utilizing the Cooper pair to induce magnetic frustration in systems of two-dimensional (2D) magnetic adatom lattices on s-wave superconducting surfaces. The competition…
Numerical Simulations of Laser Induced Magnetic Bloch Oscillations
Sergey Shinkevich, Olav F. Syljuåsen
We propose to use a laser to generate magnetic Bloch oscillations in one dimensional easy-axis ferromagnets at low temperatures. This proposal is investigated numerically in detail…