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Generalized string-net models have been recently proposed in order to enlarge the set of possible topological quantum phases emerging from the original string-net construction. In the present work, we do not consider vertex excitations and…

Other Condensed Matter · Physics 2024-11-06 Anna Ritz-Zwilling , Jean-Noël Fuchs , Steven H. Simon , Julien Vidal

The spin network quantum simulator relies on the su(2) representation ring (or its q-deformed counterpart at q= root of unity) and its basic features naturally include (multipartite) entanglement and braiding. In particular, q-deformed spin…

Mathematical Physics · Physics 2009-02-24 Zoltan Kadar , Annalisa Marzuoli , Mario Rasetti

We consider a system of composite bosons given by strongly bound fermion pairs tunneling through sites that form a low-dimensional network. It has been shown that the ground state of this system can have condensate-like properties in the…

Quantum Physics · Physics 2023-05-01 Cecilia Cormick , Leonardo Ermann

A universal symmetric truncation of the bosonic string Hilbert space yields all known closed fermionic string theories in ten dimensions, their D-branes and their open descendants. We highlight the crucial role played by group theory and…

High Energy Physics - Theory · Physics 2010-04-28 Auttakit Chattaraputi , Francois Englert , Laurent Houart , Anne Taormina

We discuss the emergence of bound states in the low-energy spectrum of the string-net Hamiltonian in the presence of a string tension. In the ladder geometry, we show that a single bound state arises either for a finite tension or in the…

Strongly Correlated Electrons · Physics 2016-11-03 M. D. Schulz , S. Dusuel , J. Vidal

While the topological order in two dimensions has been studied extensively since the discover of the integer and fractional quantum Hall systems, topological states in 3 spatial dimensions are much less understood. In this paper, we propose…

Strongly Correlated Electrons · Physics 2014-12-17 Chao-Ming Jian , Xiao-Liang Qi

Topological concepts have been employed to understand the ground states of many strongly correlated systems, but it is still quite unclear if and how topology manifests itself in the relaxation dynamics. Here we uncover emergent topological…

Quantum Gases · Physics 2025-03-31 Wang Huang , Xu-Chen Yang , Rui Cao , Ying-Hai Wu , Jianmin Yuan , Yongqiang Li

The realization of topological quantum phases of matter remains a key challenge to condensed matter physics and quantum information science. In this work, we demonstrate that progress in this direction can be made by combining concepts of…

Mesoscale and Nanoscale Physics · Physics 2019-03-27 C. Wille , R. Egger , J. Eisert , A. Altland

For a long time, people believe that all possible states of matter are described by Landau symmetry-breaking theory. Recently we find that string-net condensation provide a mechanism to produce states of matter beyond the symmetry-breaking…

Strongly Correlated Electrons · Physics 2009-11-11 Xiao-Gang Wen

We investigate transitions between topologically ordered phases in two spatial dimensions induced by the condensation of a bosonic quasiparticle. To this end, we formulate an extension of the theory of symmetry breaking phase transitions…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 F. A. Bais , J. K. Slingerland

We describe how to construct generalized string-net models, a class of exactly solvable lattice models that realize a large family of 2D topologically ordered phases of matter. The ground states of these models can be thought of as…

Strongly Correlated Electrons · Physics 2021-06-04 Chien-Hung Lin , Michael Levin , Fiona J. Burnell

We introduce a class of gapped three-dimensional models, dubbed "cage-net fracton models," which host immobile fracton excitations in addition to non-Abelian particles with restricted mobility. Starting from layers of two-dimensional…

Strongly Correlated Electrons · Physics 2019-04-19 Abhinav Prem , Sheng-Jie Huang , Hao Song , Michael Hermele

We develop a formalism for the quantization of topologically stable excitations in the 4-dimensional abelian lattice gauge theory. The excitations are global and local (Abrikosov-Nielsen-Olesen) strings and monopoles. The operators of…

High Energy Physics - Lattice · Physics 2009-10-22 A. K. Bukenov , A. V. Pochinsky , M. I. Polikarpov , L. Polley , U. -J. Wiese

Topologically nontrivial states are common in symmetry broken phases at macroscopic scales. Low dimensional systems bring them to a microscopic level where solitons emerge as single particles. The earliest and latest applications are…

Strongly Correlated Electrons · Physics 2007-05-23 S. Brazovski

We study the behaviour and consequences of cosmic string networks in contracting universes. They approximately behave during the collapse phase as a radiation fluids. Scaling solutions describing this are derived and tested against…

Astrophysics · Physics 2015-06-24 P. P. Avelino , C. J. A. P. Martins , C. Santos , E. P. S. Shellard

We consider the string-net model on the honeycomb lattice for Ising anyons in the presence of a string tension. This competing term induces a nontrivial dynamics of the non-Abelian anyonic quasiparticles and may lead to a breakdown of the…

Strongly Correlated Electrons · Physics 2014-05-28 M. D. Schulz , S. Dusuel , G. Misguich , K. P. Schmidt , J. Vidal

I present arguments to the affect that the topological phase of string theory must be event-symmetric. This motivates a search for a universal string group for discrete strings in event-symmetric space-time which unifies space-time symmetry…

High Energy Physics - Theory · Physics 2008-02-03 Phil E. Gibbs

We reveal a quantum coherent state characterized by composite bosonic trions, wherein paired fermions further bind with bosons, in one-dimensional Bose-Fermi mixtures.This phase emerges in two separate models, both featuring onsite…

Quantum Gases · Physics 2025-07-04 Qi Song , Jie Lou , Yan Chen

We review the emergence of the ten-dimensional fermionic closed string theories from subspaces of the Hilbert space of the 26-dimensional bosonic closed string theory compactified on an $E_8\times SO(16)$ lattice. They arise from a…

High Energy Physics - Theory · Physics 2016-09-06 Francois Englert , Laurent Houart , Anne Taormina

The classification and characterization of topological phases of matter is well understood for ground states of gapped Hamiltonians that are well isolated from the environment. However, decoherence due to interactions with the environment…

Strongly Correlated Electrons · Physics 2025-01-23 Tyler Ellison , Meng Cheng