Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.7k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2.4k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.3k papers
- Charles UniversityCZ2.3k papers
- Institute for High Energy PhysicsES2.3k papers
- Institut de Recherche sur les Lois Fondamentales de l'UniversFR2.2k papers
- The Ohio State UniversityUS2.1k papers
- Universidad Autónoma de MadridES2.1k papers
- Rutherford Appleton LaboratoryGB2.1k papers
- European Organization for Nuclear ResearchCH2.1k papers
- University of Wisconsin–MadisonUS2.1k papers
- Joint Institute for Nuclear ResearchRU2k papers
18 papers · 2 filters
Temperature dependence of the anomaly in the excitation spectrum of the 2D quantum Heisenberg antiferromagnet
W. Wan, N. B. Christensen, A. W. Sandvik +7
It is well established that in the low-temperature limit, the two-dimensional quantum Heisenberg antiferromagnet on a square lattice (2DQHAFSL) exhibits an anomaly in its spectrum…
Variational Schrieffer-Wolff Transformations for Quantum Many-Body Dynamics
Jonathan Wurtz, Pieter Claeys, Anatoli Polkovnikov
Building on recent results for adiabatic gauge potentials, we propose a variational approach for computing the generator of Schrieffer-Wolff transformations. These transformations…
Catastrophe theory classification of Fermi surface topological transitions in two dimensions
Anirudh Chandrasekaran, Alex Shtyk, Joseph J. Betouras +1
We classify all possible singularities in the electronic dispersion of two-dimensional systems that occur when the Fermi surface changes topology, using catastrophe theory. For sys…
Hilbert Space Fragmentation and Ashkin-Teller Criticality in Fluctuation Coupled Ising Models
Pranay Patil, Anders W. Sandvik
We discuss the effects of exponential fragmentation of the Hilbert space on phase transitions in the context of coupled ferromagnetic Ising models in arbitrary dimension with speci…
Comment on "Gapless spin liquid ground state of the spin- - Heisenberg model on square lattices"
Bowen Zhao, Jun Takahashi, Anders W. Sandvik
Liu et al. [Phys.Rev.B 98, 241109 (2018)] used Monte Carlo sampling of the physical degrees of freedom of a Projected Entangled Pair State (PEPS) type wave function for the …
Bose-Einstein condensation of deconfined spinons in two dimensions
Adam Iaizzi, Harley D Scammell, Oleg P Sushkov +1
The transition between the Néel antiferromagnet and the valence-bond solid state in two dimensions has become a paradigmatic example of deconfined quantum criticality, a non-Landau…
Constructing Quantum Spin Liquids Using Combinatorial Gauge Symmetry
Claudio Chamon, Dmitry Green, Zhi-Cheng Yang
We introduce the notion of combinatorial gauge symmetry -- a local transformation that includes single spin rotations plus permutations of spins (or swaps of their quantum states)…
Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ
Jose M. P. Carmelo, Tilen Cadez, David K. Campbell +2
The electronic dispersions of the quasi-one-dimensional organic conductor TTF-TCNQ are studied by angle-resolved photoelectron spectroscopy (ARPES) with higher angular resolution a…
Spectroscopy of spinons in Coulomb quantum spin liquids
Siddhardh C. Morampudi, Frank Wilczek, Chris R. Laumann
We calculate the effect of the emergent photon on threshold production of spinons in Coulomb spin liquids such as quantum spin ice. The emergent Coulomb interaction modifies…
Nucleation and growth bottleneck in the conductivity recovery dynamics of nickelate thin films
Elsa Abreu, Derek Meyers, Verner K. Thorsmolle +5
We investigate THz conductivity dynamics in NdNiO and EuNiO thin films following a photoinduced thermal quench into the metallic state and reveal a clear contrast between f…
Monte Carlo Renormalization Flows in the Space of Relevant and Irrelevant Operators: Application to Three-Dimensional Clock Models
Hui Shao, Wenan Guo, Anders W. Sandvik
We present a way to visualize and quantify renormalization group flows in a space of observables computed using Monte Carlo simulations. We apply the method to classical three-dime…
NMR relaxation in the spin-1 Heisenberg chain
Sylvain Capponi, Maxime Dupont, Anders W. Sandvik +1
We consider the isotropic Heisenberg chain with a finite Haldane gap and use state-of-the-art numerical techniques to investigate its dynamical properties at finite tempe…
Quantum phases of SrCu2(BO3)2 from high-pressure thermodynamics
Jing Guo, Guangyu Sun, Bowen Zhao +9
We report heat capacity measurements of SrCu(BO) under high pressure along with simulations of relevant quantum spin models and map out the phase diagram of the…
One-particle spectral function singularities in a one-dimensional gas of spin-1/2 fermions with repulsive delta-function interaction
T. Cadez, S. Nemati, J. M. P. Carmelo
The momentum, fermionic density, spin density, and interaction dependencies of the exponents that control the (momentum-energy)-plane singular features of the one-fermion spectral…
Nano-engineering of electron correlation in oxide superlattices
J. Laverock, M. Gu, V. Jovic +5
Oxide heterostructures and superlattices have attracted a great deal of attention in recent years owing to the rich exotic properties encountered at their interfaces. We focus on t…
Observation of weakened V-V dimers in the monoclinic metallic phase of strained VO2
J. Laverock, V. Jovic, A. A. Zakharov +6
Emergent order at mesoscopic length scales in condensed matter can provide fundamental insight into the underlying competing interactions and their relationship with the order para…
Pair hopping in systems of strongly interacting hard-core bosons
Alvin J. R. Heng, Wenan Guo, Anders W. Sandvik +1
We have used the Stochastic Series Expansion quantum Monte Carlo method to study interacting hard-core bosons on the square lattice, with pair-hopping processes supplementing the s…
Critical Entanglement for the Half-Filled Extended Hubbard Model
Jon Spalding, Shan-Wen Tsai, David K Campbell
We study the ground state of the one-dimensional extended Hubbard model at half-filling using the entanglement entropy calculated by Density Matrix Renormalization Group (DMRG) tec…