Results 11 to 20 of about 46,082 (278)

Matrix product operator symmetries and intertwiners in string-nets with domain walls

open access: yesSciPost Physics, 2021
We provide a description of virtual non-local matrix product operator (MPO) symmetries in projected entangled pair state (PEPS) representations of string-net models.
Laurens Lootens, Jürgen Fuchs, Jutho Haegeman, Christoph Schweigert, Frank Verstraete
doaj   +1 more source

Classifying phases protected by matrix product operator symmetries using matrix product states [PDF]

open access: yesQuantum, 2023
We classify the different ways in which matrix product states (MPSs) can stay invariant under the action of matrix product operator (MPO) symmetries. This is achieved through a local characterization of how the MPSs, that generate a ground space, remain ...
José Garre-Rubio   +2 more
doaj   +1 more source

A Multiplicative Version of Forgotten Topological Index [PDF]

open access: yesMathematics Interdisciplinary Research, 2019
In this paper, we present upper bounds for the multiplicative forgotten topological index of several graph operations such as sum, Cartesian product, corona product, composition, strong product, disjunction and symmetric difference in terms of the F ...
Asghar Yousefi   +3 more
doaj   +1 more source

Thermodynamic phase transition driven by topological excitations and their tensor network approach

open access: yesActa Physica Sinica, 2023
The fundamental concepts of phases and phase transitions constitute the cornerstone of our understanding of the physical universe. The historical development of the phase transition theory from Landau's spontaneous symmetry breaking paradigm to modern ...
Song Feng-Feng, Zhang Guang-Ming
semanticscholar   +1 more source

The Second Hyper-Zagreb Coindex of Chemical Graphs and Some Applications

open access: yesJournal of Chemistry, 2021
The second hyper-Zagreb coindex is an efficient topological index that enables us to describe a molecule from its molecular graph. In this current study, we shall evaluate the second hyper-Zagreb coindex of some chemical graphs. In this study, we compute
Ahmed Ayache   +3 more
doaj   +1 more source

Entanglement of valence-bond-solid state models on topological surfaces

open access: yesResults in Physics, 2022
We investigated the scaling behaviors of entanglements on the two-leg ladder lattice structure implemented with Affleck–Kennedy–Lieb–Tasaki (AKLT) model on six types of topological surfaces, namely, torus, sphere, real projective plane, Klein bottle ...
Wuttichai Pankeaw   +2 more
doaj   +1 more source

Wiener Polarity Index of Tensor Product of Graphs [PDF]

open access: yesMathematics Interdisciplinary Research, 2016
Mathematical chemistry is a branch of theoretical chemistry for discussion and prediction of the molecular structure using mathematical methods without necessarily referring to quantum mechanics.
Mojgan Mogharrab   +2 more
doaj   +1 more source

Algebraic Representation of Topologies on a Finite Set

open access: yesMathematics, 2022
Since the 1930s, topological counting on finite sets has been an interesting work so as to enumerate the number of corresponding order relations on the sets.
Hongfeng Guo   +3 more
doaj   +1 more source

ARENS REGULARITY OF PROJECTIVE TENSOR PRODUCT

open access: yes, 2021
In this paper, we study approximate identity properties, some propositions from Baker, Dales, Lau in general situations and we establish some relationships between the topological centers of module actions and factorization properties with some results ...
M. S. Kojanaghi, K. Azar
semanticscholar   +1 more source

Hybrid Berezinskii-Kosterlitz-Thouless and Ising topological phase transition in the generalized two-dimensional XY model using tensor networks [PDF]

open access: yes, 2020
In tensor network representation, the partition function of a generalized two-dimensional XY spin model with topological integer and half-integer vortex excitations is mapped to a tensor product of one-dimensional quantum transfer operator, whose ...
F. Song, Guang-Ming Zhang
semanticscholar   +1 more source

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