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Related papers: Burau representation, Squier's form, and non-Abeli…

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We present new results for the renormalisation and subtraction constants for the four fermion Delta F=2 operators, computed non-perturbatively in the RI-MOM scheme (in the Landau gauge). From our preliminary analysis of the lattice data at…

High Energy Physics - Lattice · Physics 2015-06-25 D. Becirevic , V. Gimenez , V. Lubicz , G. Martinelli , M. Papinutto , J. Reyes

The string-net approach by Levin and Wen and the local unitary transformation approach by Chen, Gu and Wen provided ways to systematically label non-chiral topological orders in 2D. In those approaches, different topologically ordered…

Strongly Correlated Electrons · Physics 2014-01-28 Fangzhou Liu , Zhenghan Wang , Yi-Zhuang You , Xiao-Gang Wen

Braiding has attracted significant attention in physics because of its important role in describing the fundamental exchange of particles. Infusing the braiding with topological protection will make it robust against imperfections and…

Quantum Physics · Physics 2025-07-03 Xiao-Ming Wang , Jiaying Xu , Xulong Wang , Zhen Li , Guancong Ma

Non-stationary version of unitary quantum mechanics formulated in non-Hermitian (or, more precisely, in hiddenly Hermitian) interaction-picture representation is illustrated via an elementary $N$ by $N$ matrix Hamiltonian $H(t)$ mimicking a…

Quantum Physics · Physics 2024-02-27 Miloslav Znojil

We investigate the possibility of hidden non-Abelian Local Phase symmetries in large-U doped planar Hubbard antiferromagnets, believed to simulate the physics of two-dimensional (magnetic) superconductors. We present a spin-charge…

Condensed Matter · Physics 2008-11-26 K. Farakos , N. E. Mavromatos

We derive the off-shell nilpotent Becchi-Rouet-Stora-Tyutin (BRST) and anti-BRST symmetry transformations for {\it all} the fields of a free Abelian 2-form gauge theory by exploiting the geometrical superfield approach to BRST formalism.…

High Energy Physics - Theory · Physics 2009-04-08 R. P. Malik

We demonstrate the discrete duality symmetry between the Abelian 1-form and 2-form basic gauge fields in the context of a three $(2 + 1)$-dimensional ($3D$) combined system of the field-theoretic model of the free Abelian 1-from and 2-form…

High Energy Physics - Theory · Physics 2025-08-22 R. Kumar , R. P. Malik

Discrete circular convolution over $\mathbb{Z}/N\mathbb{Z}$ is a linear operator and can be implemented on quantum hardware within the linear-combination-of-unitaries (LCU) framework. In this work, we make this connection explicit through…

Quantum Physics · Physics 2026-03-17 Chen Yang , Kodai Kanemaru , Norio Yoshida , Sergey Gusarov , Hiroshi C. Watanabe

We present results from the first lattice simulations of three dimensional non-compact quantum electrodynamics (QED3) with N_f four-component fermion flavors coupled to a weak Z(2) chirally invariant four-fermi interaction. Results with…

High Energy Physics - Lattice · Physics 2010-07-21 Wesley Armour , John B. Kogut , Costas Strouthos

For non-abelian simple objects in a unitary modular category, the density of their braid group representations, the #P-hard evaluation of their associated link invariants, and the BQP-completeness of their anyonic quantum computing models…

Quantum Algebra · Mathematics 2015-06-15 Matthew B. Hastings , Chetan Nayak , Zhenghan Wang

This paper is concerned with the construction and convergence analysis of novel implicit Peer triplets of two-step nature with four stages for nonlinear ODE constrained optimal control problems. We combine the property of superconvergence…

Optimization and Control · Mathematics 2022-06-14 Jens Lang , Bernhard A. Schmitt

We introduce `braidability' as a new symmetry for (infinite) sequences of noncommutative random variables related to representations of the braid group $B_\infty$. It provides an extension of exchangeability which is tied to the symmetric…

Operator Algebras · Mathematics 2009-11-13 Rolf Gohm , Claus Köstler

We consider the N=1* supersymmetric SU(2) gauge theory and demonstrate that the Z_2 vortices in this theory acquire orientational zero modes, associated with the rotation of magnetic flux inside SU(2) group, and turn into the non-Abelian…

High Energy Physics - Theory · Physics 2010-05-27 V. Markov , A. Marshakov , A. Yung

Robust quantum control is crucial for achieving operations below the quantum error correction threshold. Quantum Signal Processing (QSP) transforms a unitary parameterized by $\theta$ into one governed by a polynomial function $f(\theta)$,…

Quantum Physics · Physics 2026-01-06 Shraddha Singh , Baptiste Royer , Steven M. Girvin

We classify right-veering homeomorphisms of the once-punctured torus using the Burau representation of the 3-strand braid group. We show that reducible and periodic mapping classes in B_3 can be identified as right-veering by consideration…

Geometric Topology · Mathematics 2009-05-30 Emille K. Davie

Onsite gain-loss-induced topological braiding principle of non-Hermitian energy bands is theoretically formulated in multiband lattice models with Hermitian hopping amplitudes. Braid phase transition occurs when the gain-loss parameter is…

Quantum Physics · Physics 2023-09-22 B. Midya

This paper is concerned with the internal distributed control problem for the 1D Schroedinger equation, $i\,u_t(x,t)=-u_{xx}+\alpha(x)\,u+m(u)\,u,$ that arises in quantum semiconductor models. Here $m(u)$ is a non local Hartree--type…

Mathematical Physics · Physics 2012-04-11 Mariano De Leo , Constanza Sánchez Fernández de la Vega , Diego Rial

The electroweak model is formulated on the nonlinearly realized gauge group SU(2) X U(1). This implies that in perturbation theory no Higgs field is present. The paper provides the effective action at the tree level, the Slavnov Taylor…

High Energy Physics - Phenomenology · Physics 2010-11-22 Daniele Bettinelli , Ruggero Ferrari , Andrea Quadri

We discuss the discrete as well as the continuous symmetry transformations for a three $(2+1)$-dimensional $(3D)$ combined system of the free Abelian 1-form and 2-form gauge theories within the framework of Becchi-Rouet-Stora-Tyutin (BRST)…

High Energy Physics - Theory · Physics 2026-01-12 R. Kumar , R. P. Malik

Motivated by the recent experimental success in realizing synthetic spin-orbit coupling in ultracold atomic systems, we consider N-component atoms coupled to a non-Abelian SU(N) gauge field. More specifically, we focus on the case, referred…

Quantum Gases · Physics 2012-12-06 Ryan Barnett , G. R. Boyd , Victor Galitski