Quantum critical dynamics in a 5,000-qubit programmable spin glass

AD King, J Raymond, T Lanting, R Harris, A Zucca… - Nature, 2023 - nature.com
Experiments on disordered alloys,–suggest that spin glasses can be brought into low-
energy states faster by annealing quantum fluctuations than by conventional thermal …

Carving out OPE space and precise O (2) model critical exponents

SM Chester, W Landry, J Liu, D Poland… - Journal of High Energy …, 2020 - Springer
A bstract We develop new tools for isolating CFTs using the numerical bootstrap. A “cutting
surface” algorithm for scanning OPE coefficients makes it possible to find islands in high …

Monte Carlo study of an improved clock model in three dimensions

M Hasenbusch - Physical Review B, 2019 - APS
We study a generalized clock model on the simple cubic lattice. The parameter of the model
can be tuned such that the amplitude of the leading correction to scaling vanishes. In the …

The Lorentzian inversion formula and the spectrum of the 3d O (2) CFT

J Liu, D Meltzer, D Poland… - Journal of High Energy …, 2020 - Springer
A bstract We study the spectrum and OPE coefficients of the three-dimensional critical O (2)
model, using four-point functions of the leading scalars with charges 0, 1, and 2 (s, ϕ, and t) …

Pivot Hamiltonians as generators of symmetry and entanglement

N Tantivasadakarn, R Thorngren, A Vishwanath… - SciPost Physics, 2023 - scipost.org
It is well-known that symmetry-protected topological (SPT) phases can be obtained from the
trivial phase by an entangler, a finite-depth unitary operator $ U $. Here, we consider …

Multicritical deconfined quantum criticality and Lifshitz point of a helical valence-bond phase

B Zhao, J Takahashi, AW Sandvik - Physical Review Letters, 2020 - APS
The S= 1/2 square-lattice JQ model hosts a deconfined quantum phase transition between
antiferromagnetic and dimerized (valence-bond solid) ground states. We here study two …

Self-Dual Criticality in Three-Dimensional Gauge Theory with Matter

AM Somoza, P Serna, A Nahum - Physical Review X, 2021 - APS
The simplest topologically ordered phase in 2+ 1 D is the deconfined phase of Z 2 gauge
theory (realized in the toric code, for example). This phase permits a duality that exchanges …

Fully packed quantum loop model on the square lattice: Phase diagram and application for Rydberg atoms

X Ran, Z Yan, YC Wang, J Rong, Y Qi, ZY Meng - Physical Review B, 2023 - APS
The quantum dimer and loop models attract great attention, partially because the
fundamental importance in the phases and phase transitions emerging in these prototypical …

Valence-bond solids, vestigial order, and emergent SO (5) symmetry in a two-dimensional quantum magnet

J Takahashi, AW Sandvik - Physical Review Research, 2020 - APS
We introduce a quantum spin-1/2 model with many-body correlated Heisenberg-type
interactions on the two-dimensional square lattice, designed so that the system can host a …

SO (5) multicriticality in two-dimensional quantum magnets

J Takahashi, H Shao, B Zhao, W Guo… - arXiv preprint arXiv …, 2024 - arxiv.org
We resolve the nature of the quantum phase transition between a N\'eel antiferromagnet and
a valence-bond solid in two-dimensional spin-1/2 magnets. We study a class of $ J $-$ Q …