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A Classification of Lie Algebras of Pseudo-Unitary Groups in the Techniques of Clifford Algebras [PDF]

open access: yesAdvances in Applied Clifford Algebras, 2009
In this paper we present new formulas, which represent commutators and anticommutators of Clifford algebra elements as sums of elements of different ranks. Using these formulas we consider subalgebras of Lie algebras of pseudounitary groups. Our main techniques are Clifford algebras. We have find 12 types of subalgebras of Lie algebras of pseudounitary
Shirokov, Dmitry
core   +5 more sources

Classification of Extended Clifford Algebras [PDF]

open access: yesRussian Mathematics, 2018
Considering tensor products of special commutative algebras and general real Clifford algebras, we arrive at extended Clifford algebras. We have found that there are five types of extended Clifford algebras. The class of extended Clifford algebras is closed with respect to the tensor product.
openaire   +4 more sources

Hyperquaternions and physics

open access: yesSciPost Physics Proceedings, 2023
The paper develops, within a new representation of Clifford algebras in terms of tensor products of quaternions called hyperquaternions, several applications.
Patrick R. Girard, Romaric Pujol, Patrick Clarysse, Philippe Delachartre
doaj   +1 more source

Fault-Tolerant Logical Gates in Holographic Stabilizer Codes Are Severely Restricted

open access: yesPRX Quantum, 2021
We evaluate the usefulness of holographic stabilizer codes for fault-tolerant quantum computing by studying their allowed sets of fault-tolerantly implementable gates.
Sam Cree   +3 more
doaj   +1 more source

BPS black hole entropy and attractors in very special geometry. Cubic forms, gradient maps and their inversion

open access: yesJournal of High Energy Physics, 2021
We consider Bekenstein-Hawking entropy and attractors in extremal BPS black holes of N $$ \mathcal{N} $$ = 2, D = 4 ungauged supergravity obtained as reduction of minimal, matter-coupled D = 5 supergravity.
Bert van Geemen   +2 more
doaj   +1 more source

Subliminal aspects concerning the Lounesto’s classification

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
In the present communication we employ a split programme applied to spinors belonging to the regular and singular sectors of the Lounesto’s classification (Clifford algebras and spinors, Cambridge University Press, Cambridge), looking towards unveil how ...
R. J. Bueno Rogerio
doaj   +1 more source

Quaternionic and Octonionic Spinors. A Classification [PDF]

open access: yes, 2003
Quaternionic and octonionic realizations of Clifford algebras and spinors are classified and explicitly constructed in terms of recursive formulas. The most general free dynamics in arbitrary signature space-times for both quaternionic and octonionic ...
C.A. Barton   +29 more
core   +2 more sources

Graded commutative algebras: examples, classification, open problems [PDF]

open access: yes, 2009
We consider $\G$-graded commutative algebras, where $\G$ is an abelian group. Starting from a remarkable example of the classical algebra of quaternions and, more generally, an arbitrary Clifford algebra, we develop a general viewpoint on the subject. We
Anatol Odzijewicz   +6 more
core   +4 more sources

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