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We establish the factorization of Dirac operators on Riemannian submersions of compact spin$^c$ manifolds in unbounded KK-theory. More precisely, we show that the Dirac operator on the total space of such a submersion is unitarily…

K-Theory and Homology · Mathematics 2016-10-11 Jens Kaad , Walter D. van Suijlekom

This paper is devoted to a factorization of the higher dimensional Schrodinger operator in the framework of Clifford analysis.

Complex Variables · Mathematics 2010-01-26 Nele De Schepper , Dixan Peña Peña

We study certain densely defined unbounded operators on the Fock space. These are the annihilation and creation operators of quantum mechanics. In several complex variables we have the $\partial$-operator and its adjoint $\partial^*$ acting…

Complex Variables · Mathematics 2018-05-14 Friedrich Haslinger

By a result of Nagy, the C*-algebra of continuous functions on the q-deformation G_q of a simply connected semisimple compact Lie group G is KK-equivalent to C(G). We show that under this equivalence the K-homology class of the Dirac…

Operator Algebras · Mathematics 2011-02-02 Sergey Neshveyev , Lars Tuset

We show how the basic operations of quantum computing can be expressed and manipulated in a clear and concise fashion using a multiparticle version of geometric (aka Clifford) algebra. This algebra encompasses the product operator formalism…

Quantum Physics · Physics 2009-10-31 Shyamal S. Somaroo , David G. Cory , Timothy F. Havel

We initiate the hunt for a definition of Hamiltonian constraint in Euclidean Loop Quantum Gravity (LQG) which faithfully represents quantum Dirac algebra. Borrowing key ideas from previous works on Hamiltonian constraint in LQG and several…

General Relativity and Quantum Cosmology · Physics 2014-01-07 Alok Laddha

We derive the explicit form of the basic monodromy operator for the quantum loop superalgebra $\mathrm{U}_q(\mathcal{L}(\mathfrak{sl}_{2|1}))$. Two significant additional results emerge from this derivation: simple expressions for the…

Quantum Algebra · Mathematics 2024-09-18 A. V. Razumov

In this article we develop few of the analogous theoretical results of Clifford analysis over Orlicz-Sobolev spaces and study mapping properties of the Dirac operator and the Teodorescu transform over these function spaces. We also get…

Functional Analysis · Mathematics 2014-10-01 Dejenie Alemayehu Lakew , Mulugeta Alemayehu Dagnaw

We deal with Malliavin calculus on the $L^2$ space of the $W^*$-algebra generated by fermion fields (the Clifford algebra). First, we verify the product formula for multiple integrals in It\^o-Clifford calculus, which is It\^o calculus on…

Probability · Mathematics 2025-01-09 Takayoshi Watanabe

We propose an algebraic formulation for two distinct quantum algorithms: a quantum classification algorithm and a quantum search algorithm with a non-uniform initial distribution, both based on Clifford algebras and spinorial…

Quantum Physics · Physics 2026-03-31 Lauro Mascarenhas , Vinicius N. A. Lula-Rocha , Marco A. S. Trindade

In this paper, we give the H\"ormander's $L^2$ theorem for Dirac operator over an open subset $\Omega\in\R^{n+1}$ with Clifford algebra. Some sufficient condition on the existence of the weak solutions for Dirac operator has been found in…

Analysis of PDEs · Mathematics 2013-04-18 Yang Liu , Zhihua Chen , Yifei Pan

Clifford geometric algebras of multivectors are treated in detail. These algebras are build over a graded space and exhibit a grading or multivector structure. The careful study of the endomorphisms of this space makes it clear, that…

High Energy Physics - Theory · Physics 2015-06-26 Bertfried Fauser

We deduce from a determinant identity on quantum transfer matrices of generalized quantum integrable spin chain model their generating functions. We construct the isomorphism of Clifford algebra modules of sequences of transfer matrices and…

Mathematical Physics · Physics 2018-01-18 Natasha Rozhkovskaya

We calculate the index of the Dirac operator defined on the q-deformed fuzzy sphere. The index of the Dirac operator is related to its net chiral zero modes and thus to the trace of the chirality operator. We show that for the q-deformed…

High Energy Physics - Theory · Physics 2008-11-26 E. Harikumar , Amilcar R. Queiroz , P. Teotonio-Sobrinho

The Clifford group plays a central role in quantum information science. It is the building block for many error-correcting schemes and matches the first three moments of the Haar measure over the unitary group -a property that is essential…

Quantum Physics · Physics 2025-04-17 Lennart Bittel , Jens Eisert , Lorenzo Leone , Antonio A. Mele , Salvatore F. E. Oliviero

We use non-standard analysis to define a category $^\star\!\operatorname{Hilb}$ suitable for categorical quantum mechanics in arbitrary separable Hilbert spaces, and we show that standard bounded operators can be suitably embedded in it. We…

Quantum Physics · Physics 2017-01-04 Stefano Gogioso , Fabrizio Genovese

We prove some formulas relating Cauchy-Riemann operators defined on hypercomplex subspaces of an alternative *-algebra to a differential operator associated with the concept of slice-regularity and to the spherical Dirac operator. These…

Complex Variables · Mathematics 2022-07-22 Alessandro Perotti

The Dirac equation in a curved spacetime depends on a field of coefficients (essentially the Dirac matrices), for which a continuum of different choices are possible. We study the conditions under which a change of the coefficient fields…

General Relativity and Quantum Cosmology · Physics 2011-07-14 Mayeul Arminjon , Frank Reifler

On a compact K\"ahler manifold there is a canonical action of a Lie-superalgebra on the space of differential forms. It is generated by the differentials, the Lefschetz operator and the adjoints of these operators. We determine the…

Differential Geometry · Mathematics 2013-01-25 Dmitry Jakobson , Alexander Strohmaier , Steve Zelditch

In his book Mickelsson notices that the infinite-dimensional Grassmannian manifold of Segal and Wilson admits a Spin^c structure and after this he naturally considers the problem of defining a Dirac operator on it. Mickelsson gives a…

Representation Theory · Mathematics 2010-07-27 Vesa Tahtinen