Geometry of spin ½ particles



Document title: Geometry of spin ½ particles
Journal: Revista mexicana de física
Database: PERIÓDICA
System number: 000384014
ISSN: 0035-001X
Authors: 1
Institutions: 1Universidad de las Américas, Departamento de Físico Matemáticas, Puebla. México
Year:
Season: May-Jun
Volumen: 61
Number: 3
Pages: 211-223
Country: México
Language: Inglés
Document type: Artículo
Approach: Analítico, teórico
English abstract The geometric algebras of space and spacetime are derived by sucessively extending the real number system to include new mutually anticommuting square roots of ±1. The quantum mechanics of spin 1/2 particles are then expressed in these geometric algebras. Classical 2 and 4 component spinors are represented by geometric numbers which have parity, providing new insight into the familiar bra-ket formalism of Dirac. The classical Dirac Equation is shown to be equivalent to the Dirac-Hestenes equation, so long as the issue of parity is not taken into consideration, the latter quantity being constructed in such a way that it is parity invarient
Disciplines: Física y astronomía
Keyword: Física,
Formalismo de Bra-Ket,
Algebra geométrica,
Espacio-tiempo,
Ecuación de Schrodinger-Pauli,
Ecuación de Dirac-Hestenes,
Operador Spinor
Keyword: Physics and astronomy,
Physics,
Bra-Ket formalism,
Geometric algebra,
Space-time,
Schrödinger-Pauli equation,
Dirac-Hestenes equation,
Spinor operator
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