Emergent (2+1)D topological orders from iterative (1+1)D gauging
- URL: http://arxiv.org/abs/2403.07575v2
- Date: Wed, 29 May 2024 10:33:37 GMT
- Title: Emergent (2+1)D topological orders from iterative (1+1)D gauging
- Authors: Jose Garre Rubio,
- Abstract summary: Gauging introduces gauge fields in order to localize an existing global symmetry.
By iterating the gauging process we obtain new codes that explicitly confine anyons.
Our method establishes a new route to obtain higher dimensional topological codes from lower ones.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Gauging introduces gauge fields in order to localize an existing global symmetry, resulting in a dual global symmetry on the gauge fields that can be gauged again. By iterating the gauging process on spin chains with Abelian group symmetries and arranging the gauge fields in a 2D lattice, the local symmetries become the stabilizer of the $XZZX$-code for any Abelian group. By twisting the gauging map we obtain new codes that explicitly confine anyons, which violate an odd number of plaquette terms and whose fusion results in mobile dipole excitations. Our construction naturally realizes any gapped boundary by taking different quantum phases of the initial (1+1)D globally symmetric system. Our method establishes a new route to obtain higher dimensional topological codes from lower ones, to identify their gapped boundaries and their tensor network representations.
Related papers
- Systematic construction of stabilizer codes via gauging abelian boundary symmetries [0.0]
We propose a systematic framework to construct a (d+1)-dimensional stabilizer model from an initial generic d-dimensional abelian symmetry.
Our approach builds upon the iterative gauging procedure, developed by one of the authors in [J. Garre-Rubio, Nature Commun. 15, 7986 (2024)
arXiv Detail & Related papers (2024-10-11T17:57:40Z) - Toward Global Convergence of Gradient EM for Over-Parameterized Gaussian Mixture Models [47.294535652946095]
We study the gradient Expectation-Maximization (EM) algorithm for Gaussian Mixture Models (GMM)
This is the first global convergence result for Gaussian mixtures with more than $2$ components.
arXiv Detail & Related papers (2024-06-29T16:44:29Z) - Realizing triality and $p$-ality by lattice twisted gauging in (1+1)d quantum spin systems [0.0]
We define the twisted Gauss law operator and implement the twisted gauging of the finite group on the lattice.
We show the twisted gauging is equivalent to the two-step procedure of first applying the SPT entangler and then untwisted gauging.
arXiv Detail & Related papers (2024-05-23T18:00:02Z) - Accelerated Discovery of Machine-Learned Symmetries: Deriving the
Exceptional Lie Groups G2, F4 and E6 [55.41644538483948]
This letter introduces two improved algorithms that significantly speed up the discovery of symmetry transformations.
Given the significant complexity of the exceptional Lie groups, our results demonstrate that this machine-learning method for discovering symmetries is completely general and can be applied to a wide variety of labeled datasets.
arXiv Detail & Related papers (2023-07-10T20:25:44Z) - Symmetry-enriched topological order from partially gauging
symmetry-protected topologically ordered states assisted by measurements [1.2809525640002364]
It is known that for a given symmetry group $G$, the 2D SPT phase protected by $G$ is dual to the 2D topological phase exemplified by the twisted quantum double model $Domega(G)$ via gauging the global symmetry $G$.
Here, we review the general approach to gauging a $G$-SPT starting from a fixed-point ground-state wave function and applying a $N$-step gauging procedure.
We provide an in-depth analysis of the intermediate states emerging during the N-step gauging and provide tools to measure and identify the emerging symmetry-
arXiv Detail & Related papers (2023-05-16T18:40:56Z) - Oracle-Preserving Latent Flows [58.720142291102135]
We develop a methodology for the simultaneous discovery of multiple nontrivial continuous symmetries across an entire labelled dataset.
The symmetry transformations and the corresponding generators are modeled with fully connected neural networks trained with a specially constructed loss function.
The two new elements in this work are the use of a reduced-dimensionality latent space and the generalization to transformations invariant with respect to high-dimensional oracles.
arXiv Detail & Related papers (2023-02-02T00:13:32Z) - Deep Learning Symmetries and Their Lie Groups, Algebras, and Subalgebras
from First Principles [55.41644538483948]
We design a deep-learning algorithm for the discovery and identification of the continuous group of symmetries present in a labeled dataset.
We use fully connected neural networks to model the transformations symmetry and the corresponding generators.
Our study also opens the door for using a machine learning approach in the mathematical study of Lie groups and their properties.
arXiv Detail & Related papers (2023-01-13T16:25:25Z) - Quantum Error Correction with Gauge Symmetries [69.02115180674885]
Quantum simulations of Lattice Gauge Theories (LGTs) are often formulated on an enlarged Hilbert space containing both physical and unphysical sectors.
We provide simple fault-tolerant procedures that exploit such redundancy by combining a phase flip error correction code with the Gauss' law constraint.
arXiv Detail & Related papers (2021-12-09T19:29:34Z) - Non-Hermitian $C_{NH} = 2$ Chern insulator protected by generalized
rotational symmetry [85.36456486475119]
A non-Hermitian system is protected by the generalized rotational symmetry $H+=UHU+$ of the system.
Our finding paves the way towards novel non-Hermitian topological systems characterized by large values of topological invariants.
arXiv Detail & Related papers (2021-11-24T15:50:22Z) - Gauging the bulk: generalized gauging maps and holographic codes [0.0]
Gauging is a general procedure for mapping a quantum many-body system with a global symmetry to one with a local gauge symmetry.
We consider a generalized gauging map that does not enforce gauge symmetry at all lattice sites, and show that it is an isometry on the input space including all charged sectors.
We apply this gauging map to convert global-symmetric bulk systems of holographic codes to gauge-symmetric bulk systems, and vice versa, while preserving duality with a global-symmetric boundary.
arXiv Detail & Related papers (2021-08-25T18:01:04Z) - Determining non-Abelian topological order from infinite projected
entangled pair states [0.0]
We find numerically symmetries of the iPEPS, represented by infinite matrix product operators (MPO)
A linear structure of the MPO projectors allows for efficient determination for each state its second Renyi topological entanglement entropy.
The algorithm is illustrated by examples of Fibonacci and Ising non-Abelian string net models.
arXiv Detail & Related papers (2020-08-14T14:26:54Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.