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cond-mat.str-el2026

High-precision ground state parameters of the two-dimensional spin-1/2 Heisenberg model on the square lattice

Anders W. Sandvik

Several ground state properties of the square-lattice Heisenberg antiferromagnet are computed (the energy, order parameter, spin stiffness, spinwave velocity, long-waveleng…

cond-mat.str-el2025★ 5 cited

Single-Particle Dispersion and Density of States of the Half-Filled 2D Hubbard Model

Gabe Schumm, Shiwei Zhang, Anders W. Sandvik

Implementing an improved method for analytic continuation and working with imaginary-time correlation functions computed using quantum Monte Carlo simulations, we resolve the singl…

cond-mat.str-el2025★ 1 cited

Theta electromagnetism in quantum spin ice: Microscopic analysis of improper symmetries

Gautam K. Naik, Jonathan N. Hallén, Chris R. Laumann

gauge theories, including conventional Maxwell electromagnetism, allow -terms when parity and time-reversal symmetry are broken. In condensed matter systems, the physics…

cond-mat.str-el2025★ 4 cited

Incommensurate gapless ferromagnetism connecting competing symmetry-enriched deconfined quantum phase transitions

Anthony Rey, Ömer M. Aksoy, Daniel P. Arovas +2

We present a scenario, in which a gapless extended phase serves as a "hub" connecting multiple symmetry-enriched deconfined quantum critical points. As a concrete example, we const…

cond-mat.str-el2024

Deconfined classical criticality in the anisotropic quantum spin- XY model on the square lattice

Christopher Mudry, Ömer M. Aksoy, Claudio Chamon +1

The anisotropic quantum spin-1/2 XY model on a linear chain was solved by Lieb, Schultz, and Mattis in 1961 and shown to display a continuous quantum phase transition at the O(2) s…

cond-mat.str-el2024★ 2 cited

Ground state of the S = 1/2 Heisenberg spin chain with random ferro- and antiferromagnetic couplings

Sibei Li, Hui Shao, Anders W. Sandvik

We study the Heisenberg chain with random ferro- and antiferromagnetic couplings using quantum Monte Carlo simulations at ultra-low temperatures, converging to the ground s…

cond-mat.str-el2024★ 5 cited

Fractal Subsystem Symmetries, Anomalies, Boundaries, and Effective Field Theory

Heitor Casasola, Guilherme Delfino, Yizhi You +2

This work reports an extensive study of three-dimensional topological ordered phases that, in one of the directions behave like usual topological order concerning mobility of excit…

cond-mat.str-el2024★ 6 cited

[111]-strained spin ice: Localization of thermodynamically deconfined monopoles

Zhongling Lu, Robin Schäfer, Jonathan N. Hallén +1

We study classical spin ice under uniaxial strain along the crystallographic axis. Remarkably, such strain preserves the extensive ice degeneracy and the corresponding clas…

cond-mat.str-el2024★ 31 cited

Gauging modulated symmetries: Kramers-Wannier dualities and non-invertible reflections

Salvatore D. Pace, Guilherme Delfino, Ho Tat Lam +1

Modulated symmetries are internal symmetries that act in a non-uniform, spatially modulated way and are generalizations of, for example, dipole symmetries. In this paper, we system…

cond-mat.str-el2024★ 4 cited

Cross Validation in Stochastic Analytic Continuation

Gabe Schumm, Sibin Yang, Anders W. Sandvik

Stochastic Analytic Continuation (SAC) of Quantum Monte Carlo (QMC) imaginary-time correlation function data is a valuable tool in connecting many-body models to experimentally mea…

cond-mat.str-el2023★ 1 cited

Signatures of quantum phases in a dissipative system

Rohan Joshi, Saikat Mondal, Souvik Bandyopadhyay +2

Lindbladian formalism, as tuned to dissipative and open systems, has been all-pervasive to interpret non-equilibrium steady states of quantum many-body systems. We study the fate o…

cond-mat.str-el2023★ 7 cited

Zigzag materials: selective interchain couplings control the coexistence of one-dimensional physics and deviations from it

J. M. P. Carmelo, P. D. Sacramento, T. Stauber +1

The coexistence in the low-temperature spin-conducting phases of the zigzag materials BaCo2V2O8 and SrCo2V2O8 of one-dimensional (1D) physics with important deviations from it is n…

cond-mat.str-el2023★ 6 cited

Fractal Subsystem Symmetries, 't Hooft Anomalies, and UV/IR Mixing

Heitor Casasola, Guilherme Delfino, Pedro R. S. Gomes +1

In this work, we study unconventional anisotropic topologically ordered phases in that manifest type-II fractonic physics along submanifolds. While they behave as usual topolo…

cond-mat.str-el2023★ 12 cited

Anyon condensation web and multipartite entanglement in 2D modulated gauge theories

Guilherme Delfino, Yizhi You

In this work, we introduce an anyon condensation web that interconnects a broad class of 2D fracton gauge theories with multipolar conservation laws at a microscopic level. We find…

cond-mat.str-el2023★ 3 cited

Primary and Secondary Order Parameters in the Fully Frustrated Transverse Field Ising Model on the Square Lattice

Gabe Schumm, Hui Shao, Wenan Guo +2

Using quantum Monte Carlo simulations and field-theory arguments, we study the fully frustrated (Villain) transverse-field Ising model on the square lattice. We consider a "primary…

cond-mat.str-el2023★ 11 cited

SR Study of the Dipole-Octupole Quantum Spin Ice Candidate CeZrO

J. Beare, E. M. Smith, J. Dudemaine +11

The Ce pseudospin-1/2 degrees of freedom in CeZrO possess both dipolar and octupolar character which enables the possibility of novel quantum spin liquid ground…

cond-mat.str-el2023★ 4 cited

Edge Theories for Anyon Condensation Phase Transitions

David M. Long, Andrew C. Doherty

The algebraic tools used to study topological phases of matter are not clearly suited to studying processes in which the bulk energy gap closes, such as phase transitions. We descr…

cond-mat.str-el2023★ 21 cited

Quantum Spin Ice Response to a Magnetic Field in the Dipole-Octupole Pyrochlore CeZrO

E. M. Smith, J. Dudemaine, B. Placke +17

We report new heat capacity measurements on single crystal CeZrO down to 0.1 K in a magnetic field along the direction. These new measurements s…

cond-mat.str-el2023★ 6 cited

Ultrafast simultaneous manipulation of multiple ferroic orders through nonlinear phonon excitation

Daniel A. Bustamante Lopez, Dominik M. Juraschek, Michael Fechner +3

Recent experimental studies have demonstrated the possibility of utilizing strong terahertz pulses to manipulate individual ferroic orders on pico- and femtosecond timescales. Here…

cond-mat.str-el2023★ 10 cited

Equilibration of Topological Defects Near the Deconfined Quantum Multicritical Point

Yu-Rong Shu, Shao-Kai Jian, Anders W. Sandvik +1

Deconfined quantum criticality (DQC) arises from fractionalization of quasi-particles and leads to fascinating behaviors beyond the Landau-Ginzburg-Wilson description of phase tran…

cond-mat.str-el2023★ 12 cited

Diffusive Excitonic Bands from Frustrated Triangular Sublattice in a Singlet-Ground-State System

Bin Gao, Tong Chen, Xiao-Chuan Wu +17

Magnetic order in most materials occurs when magnetic ions with finite moments in a crystalline lattice arrange in a particular pattern below the ordering temperature determined by…

cond-mat.str-el2023★ 7 cited

Hybrid Dyons, inverted Lorentz force and magnetic Nernst effect in quantum spin ice

Chris R. Laumann, Roderich Moessner

Topological magnets host two sets of gauge fields: that of native Maxwell electromagnetism, thanks to the magnetic dipole moment of its constituent microscopic moments; and that of…

cond-mat.str-el2023★ 7 cited

Single monkey-saddle singularity of a Fermi surface and its instabilities

Ömer M. Aksoy, Anirudh Chandrasekaran, Apoorv Tiwari +3

Fermi surfaces can undergo sharp transitions under smooth changes of parameters. Such transitions can have a topological character, as is the case when a higher-order singularity,…

cond-mat.str-el2023★ 6 cited

symmetry-enriched toric code

Kai-Hsin Wu, Alexey Khudorozhkov, Guilherme Delfino +2

We propose and study a generalization of Kitaev's toric code on a square lattice with an additional global symmetry. Using Quantum Monte Carlo simulation, we f…