Abstract
This paper reviews Clifford algebras in mathematics and in theoretical physics. In particular, the little-known differential form realization is constructed in detail for the four-dimensional Minkowski space. This setting is then used to describe spinors as differential forms, and to solve the Klein-Gordon and Kähler-Dirac equations. The approach of this paper, in obtaining the solutions directly in terms of differential forms, is much more elegant and concise than the traditional explicit matrix methods. A theorem given here differentiates between the two real forms of the Dirac algebra by showing that spin can be accommodated in only one of them.
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Clifford W. K.: ‘On the Classification of Geometric Algebras’, paper XLIII in R.Tucker (ed.), Mathematical Papers of W. K. Clifford, Chelsea, New York, 1968.
Cartan E.: Theory of Spinors, Dover, New York, 1966.
Brauer R. and Weyl H.: ‘Spinors in n Dimensions’, Amer. J. Math. 57 (1935), 425–449.
Van derWaerden B. L.: Group Theory and Quantum Mechanics, Springer, Berlin, 1932, 1974.
Chevalley C.: The Algebraic Theory of Spinors, Columbia Univ. Press, New York, 1954.
Corson E. M.: Introduction to Tensors, Spinors, and Relativistic Wave-Equations, Chelsea, New York, 1953.
Hestenes D.: Spacetime Algebra, Gordon and Breach, New York, 1966.
Dirac P. A. M.: ‘The Quantum Theory of the Electron’, Proc. Roy. Soc. London A 117 (1928), 610–624.
Onsager L.: ‘Crystal Statistics I: A Two-Dimensional Model with an Order-Disorder Transition’, Phys. Rev. 65 (1944), 117–149.
Kaufman B.: ‘Crystal Statistics II: Partition Function Evaluated by Spinor Analysis’, Phys. Rev. 76 (1949), 1232–1243.
Schultz T. D., Mathis D. C., and Lieb E. H.: ‘Two-Dimensional Ising Model as a Soluble Problem of Many Fermions’, Rev. Mod. Phys. 36 (1964), 856–871.
Palmer J. and Tracy C.: ‘Two-Dimensional Ising Correlations’, Adv. Appl. Math. 4 (1983), 46–102.
Riesz M.: Clifford Numbers and Spinors, Lecture Notes No. 38, Institute for Fluid Dynamics and Applied Mathematics, University of Maryland, College Park, 1958.
Imaeda K.: ‘A New Formulation of Classical Electrodynamics’, Nuovo Cim. B 32 (1976), 138–159.
Salingaros N.: ‘Electromagnetism and the Holomorphic Properties of Spacetime’, J Math. Phys. 22 (1981), 1919–1925.
Gödel K.: ‘An Example of a New Type of Cosmological Solutions of Einstein's Field Equations of Gravitation’. Rev. Mod. Phys. 21 (1949), 447–450.
Jantzen R. T.: ‘Generalized Quaternions and Spacetime Symmetries’, J Math. Phys. 23 (1982), 1741–1746.
Caianiello E.: Combinatorics and Renormalization in Quantum Field Theory, Benjamin, Reading, Mass., 1973.
Salingaros N. and Dresden M.: ‘Properties of an Associative Algebra of Tensor Fields. Duality and Dirac Identities’, Phys. Rev. Lett. 43 (1979), 1–4.
Coquereaux R.: ‘Modulo 8 Periodicity of Real Clifford Algebras and Particle Physics’, Phys. Lett. B 115 (1982), 389–395.
Casalbuoni R. and Gatto R.: ‘Unified Theories for Quarks and Leptons Based on Clifford algebras’, Phys. Lett. B 90 (1980), 81–86.
Brink L. and Schwarz J. H.: ‘Quantum Superspace’, Phys. Lett. B 100 (1981), 310–312.
Horwitz L. P. and Biedenharn L. C.: ‘Exceptional Gauge Groups and Quantum Theory’, J. Math. Phys. 20 (1979), 269–298.
Chisholm J. S. R. and Farwell R.: ‘Spin Gauge Theory of Electric and Magnetic Spinors’, Proc. Roy. Soc. London A 377 (1981), 1–23.
Chisholm J. S. R. and Farwell R. S.: ‘Spin Gauge Theory of the First Generation I’, Nuovo Cim. 28A (1984), 145–183.
Chisholm J. S. R. and Farwell R. S.: ‘Spin Gauge Theory of the First Generation II’, Nuovo Cim. 82A (1984), 185–208.
Chisholm J. S. R. and Farwell R. S.: ‘Spin Gauge Theory of the First Generation III’, Nuovo Cim. 82A (1984), 210–221.
Dixon G.: ‘Algebraic Unification’, Phys. Rev. D 28 (1983), 833–843.
Barut A. O. and Basri S. A.: ‘Connection Between the Stable-Particle Model and the Integrally Charged Quark Model’, Lett. Nuovo Cim. 35 (1982), 200–204.
Basri S. A. and Barut A. O.: ‘Elementary Particle States Based on the Clifford Algebra C 7’, Int. J. Theor. Phys. 22 (1983), 691–722.
Kähler, E.: ‘Innere und Aüsserer Differentialkalkül’, Abh. Deutsch. Akad. Wiss. Berlin (Math.-Phys) No. 4, 1960.
Kähler, E.: ‘Die Dirac-Gleichung’, Abh. Deutsch. Akad. Wiss. Berlin (Math.-Phys) No. 1, 1961.
Kähler E.: ‘Der innere Differentialalkül’, Rend. Mat. 21 (1962), 425–523.
Kähler E.: ‘Der innere Differentialalkül’, Abh. Math. Sem. Univ. Hamburg 25 (1962), 192–205.
Salingaros N.: ‘Realization and Classification of the Universal Clifford Algebras as Lie-Admissible Algebras’, Hadronic J. 3 (1979), 339–389.
Salingaros N.: ‘Realization, Extension, and Classification of Certain Physically Important Groups and Algebras’, J. Math. Phys. 22 (1981), 226–232.
Salingaros N. and Dresden M.: ‘Physical Algebras in Four Dimensions I: The Clifford Algebra in Minkowski Spacetime’, Adv. Appl. Math. 4 (1983), 1–30.
Teitler S.: ‘The Structure of 4-spinors’, J. Math. Phys. 7 (1966), 1730–1738.
Teitler S.: ‘Lorentz Equivalence, Unitary Symmetry, and Spin Unitary Symmetry’, J. Math. Phys. 7 (1966), 1739–1743.
Hestenes D.: ‘Geometry of the Dirac Theory’, in J.Keller (ed.), Mathematics of Physical Spacetime, Facultad de Quimica, UNAM, Mexico City, 1982.
Doria F. A.: ‘A Lagrangian Formulation for Noninteracting High-Spin Fields’, J. Math. Phys. 18 (1977), 564–571.
Sobczyk G.: ‘Spacetime Algebra Approach to Curvature’, J. Math. Phys. 22 (1981), 333–342.
Greider K. R.: ‘Relativistic Quantum Theory with Correct Conservation Laws’, Phys. Rev. Lett. 44 (1980), 1718–1721.
Greider K. R.: ’A Unifying Clifford Algebra Formalism for Relativistic Fields’, Found Phys. 14 (1984), 467–506.
Rabin J.: ‘Homology Theory of Lattice Fermion Doubling’, Nucl. Phys. B 201 (1982), 315–332.
Becher P.: ‘Dirac Fermions on the Lattice’, Phys. Lett. B 104 (1981), 221–225.
Becher P. and Joos H.: ‘The Dirac-Kähler Equation and Fermions on the Lattice’, Z. Phys. C 15 (1982), 343–365.
Banks T., Dothan Y., and Horn D.: ‘Geometric Fermions’, Phys. Lett. B 117 (1982), 413–417.
Bullinaria J.: ‘Continuum and Lattice Majorana Kähler Fermions’, Phys. Lett. B 133 (1983), 411–414.
Göckeler M.: ‘Axial-Vector Anomaly for Dirac-Kähler Fermions on the Lattice’, Nuclear Phys. B 224 (1983), 508–522.
Benn I. M. and Tucker R. W.: ‘Fermi-Bose Symmetry and Kähler Fields’, Phys Lett. B 125 (1983), 47–48.
Benn I. M. and Tucker R. W.: ‘Clifford Analysis of Exterior Forms and Fermi-Bose Symmetry’, J. Phys. A 16 (1983), 4147–4153.
Benn I. M. and Tucker R. W.: ‘Fermions Without Spinors’, Comm. Math. Phys. 89 (1983), 341–362.
Mitra P.: ‘Geometry of Non-Degenerate Susskind Fermions’, Nucl. Phys. B 227 (1983), 349–364.
Gürsey F.: ‘A Dirac Algebraic Approach to Supersummetry’, Found. Phys. 13 (1983), 289–296.
Lang S.: Algebra, Addison-Wesley, Reading, Mass., 1971.
Atiyah M. F., Bott R. and Shapiro A.: ‘Clifford Modules’, Topology 3 (Suppl. 1) (1964), 3–38.
Karoubi M.: K-Theory, Springer, Berlin, 1979.
Porteous I.: Topological Geometry, 2nd edn. Cambridge Univ. Press, Cambridge, 1981.
Albert A. A.: Structure of Algebras, Amer. Math. Soc., Providence, R.I., 1961.
Ilamed Y. and Salingaros N.: ‘Algebras with Three Anticommuting Elements I: Spinors and Quaternions’, J. Math. Phys. 22 (1981), 2091–2095.
Salingaros N.: ‘Algebras with Three Anticommuting Elements II’, J. Math. Phys. 22 (1981), 2096–2100.
Wene G.P.: ‘A Generalization of the Construction of Ilamed and Salingaros’, J. Math. Phys. 24 (1983), 221–223.
Salingaros N.: ‘On the Clasification of Clifford Algebras and their Relation to Spinors in n Dimensions’, J. Math. Phys. 23 (1982), 1–7; 1231.
Salingaros N.: ‘The Relationship between Finite Groups and Clifford Algebras’, J. Math. Phys. 25 (1984), 738–742.
Dornhoff L.: Group Representation Theory, Part A, Marcel Dekker, New York, 1971.
Stein E. M. and Weiss G.: ‘Generalization of the Cauchy-Riemann Equations and Representations of the Rotation Group’, Amer. J. Math. 90 (1968), 163–196.
Hestenes D.: ‘Multivector Functions’, J. Math. Anal. Appl. 24 (1968), 467–473.
Delanghe R.: ‘On Regular-Analytic Functions with Values in a Clifford Algebra’, Math. Ann. 185 (1970), 91–111.
Delanghe R.: ‘On the Singularities of Functions with Values in a Clifford Algebra’, Math. Ann. 196 (1972), 293–319.
Brackx F., Delanghe R., and Sommen F.: Clifford Analysis, Pitman, London, 1982.
Carmichael R. D.: ‘Review of Clifford Analysis, by F. Brackx, R. Delanghe, F. Sommen’, Bull. Amer. Math. Soc. 11 (1984), 227–240.
Lounesto P.: ‘Spinor Valued Regular Functions’, in R. P.Gilbert (ed.), Plane Ellipticity and Related Problems, Contemporary Math. vol. 11, Amer. Math. Soc. Provident, R.I., 1982 pp. 155–175.
Lounesto P. and Bergh P.: ‘Axially Symmetric Vector Fields and their Complex Potentials’, Complex Variables 2 (1983), 139–150.
Ryan J.: ‘Complexified Clifford Analysis’, Complex Variables 1 (1982), 119–149.
Ryan J.: ‘Clifford Analysis with Generalized Elliptic and Quasi-Elliptic Functions’, Appl. Anal. 13 (1982), 151–171.
Ryan J.: ‘Singularities and Laurent Expansions in Complex Clifford Analysis’, Appl. Anal. 16 (1983), 33–49.
Derrick G.H.: ‘On the Square Root of the Minkowski Space’, Phys. Lett. 92A (1982), 374–376.
Derrick G. H.: ‘Eight-Dimensional Spinor Representation of the Poincare Group’, Int. J. Theor. Phys. 23 (1984), 359–393.
Ablamowicz R., Oziewicz R., and Rzewuski J.: ‘Clifford Algebra Approach to Twistors’, J. Math. Phys. 23 (1982), 231–242.
Ablamowicz R. and Salingaros N.: ‘On the Relationship Between Twistors and Clifford Algebras’, Lett. Math. Phys. 9 (1985), 149–155.
Hasiewicz Z., Kwasniewski A. K., and Morawiec P.: ‘Supersymmetry and Clifford Algebras’, J. Math. Phys. 25 (1984), 20131–2036.
Ktorides C. N.: ‘A Clifford Algebraic Approach to Superfields and Some Consequences’, J. Math. Phys. 16 (1975), 2123–2129.
Daniel M. and Ktorides C. N.: ‘Spinorial Charges and their Role in the Fusion of Internal and Space-Time Symmetries’, Nuclear Phys. B 115 (1976), 313–332.
Winnberg J. O.: ‘Superfields as an Extension of the Orthogonal Group’, J. Math. Phys. 18 (1977), 625–628.
Bugajska K.: ‘On Geometrical Properties of Spinor Structure’, J. Math. Phys. 21 (1980), 2097–2101.
Kim S. K.: ‘The Theory of Spinors via Involutions and its Application to the Representations of the Lorentz Group’, J. Math. Phys. 21 (1980), 1299–1311.
Kerner R.: ‘Covariant Objects and Invariant Equations on Fiber Bundles’, J. Math. Phys. 21 (1980), 2553–2559.
Sudbery A.: ‘Quaternionic Analysis’, Math. Proc. Cambridge Phil. Soc. 85 (1979), 199–225.
Sudbery A.: ‘Division Algebras, Pseudo-Orthogonal Groups and Spinors’, J. Phys. A: Math. Gen. 17 (1984), 939–955.
Hirzebruch F.: Topological Methods in Algebraic Geometry, Springer, Berlin, 1965.
Atiyah M. F.: ‘Algebraic Topology and Elliptic Operators’, Comm. Pure Appl. Math. 20 (1967), 237–249.
Atiyah M. F.: ‘Bott Periodicity and the Index of Elliptic Operators’, Quart. J. Math. Oxford 19 (1968), 113–140.
Atiyah, M. F.: ‘Vector Fields on Manifolds’, Arbeitsgemeinschaft für Forschung des Landes Nordrhein-Westfalen (1969).
Atiyah M. F. and Singer I. M.: ‘The Index of Elliptic Operators I’, Ann. Math. 87 (1968), 484–530.
Atiyah M. F. and Singer I. M.: ‘The Index of Elliptic Operators III’, Ann. Math. 87 (1968), 546–604.
Atiyah M. F. and Singer I. M.: ‘The Index of Elliptic Operators IV’, Ann. Math. 92 (1970), 119–138.
Atiyah M. F. and Singer I. M.: ‘The Index of Elliptic Operators V’, Ann. Math. 92 (1970), 139–149.
Atiyah M. F., Bott R. and Patodi V. K.: ‘On the Heat Equation and the Index Theorem’, Invent. Math. 19 (1973), 279–330.
Gilkey P. B.: ‘Curvature and the Eigenvalues of the Laplacian for Elliptic Complexes’, Adv. Math. 10 (1973), 344–382.
Singer, I. M.: ‘Eigenvalues of the Laplacian and Invariants of Manifolds’, Proc. Int. Congress Math., Vancouver, 1974, pp. 187–200.
Kulkarni, R. S.: Index Theorems of Atiyah-Bott-Patodi and Curvature Invariants, Presses de L'Université de Montreal, 1975 (Séminaire No. 49).
Hodgkin L. H. and Snaith V. P.: Topics in K-Theory, Lecture Notes in Math. No. 496, Springer, Berlin, 1975.
Stein M. R. (ed.): Algebraic K-Theory, Lecture Notes in Math. No. 551, Springer, Berlin, 1976.
Morrel B. B. and Singer I. M. (eds.): K-Theory and Operator Algebras, Lecture Notes in Math. No. 575, Springer, Berlin, 1977.
Bak A. (ed.): Algebraic K-Theory, Number Theory, Geometry and Analysis, Lecture Notes in Math. No. 1046, Springer, Berlin, 1984.
Shale D. and Stinespring W. F.: ‘States of the Clifford Algebra’, Ann. Math. 80 (1964), 365–381.
Bass H.: ‘Clifford Algebras and Spinor Norms over a Commutative Ring’, Amer. J. Math. 96 (1967), 156–206.
Bass H.: Algebraic K-Theory, Benjamin, New York, 1968.
Reed M. C.: ‘Torus Invariance for the Clifford Algebra I’, Trans. Amer. Math. Soc. 154 (1971), 177–183.
Reed M. C.: ‘Torus Invariance for the Clifford Algebra II’, J. Funct. Anal. 8 (1971), 450–468.
Herman R. and Reed M. C.: ‘Covariant Representation of Infinite Tensor Product Algebras’, Pacific J. Math. 40 (1972), 311–326.
Frenkel I. B.: ‘Spinor Representations of Affine Lie Algebras’, Proc. Natl. Acad. Sci. (USA) 77 (1980), 6303–6306.
Frenkel I. B.: ‘Two Constructions of Affine Lie Algebra Representations and Boson-Fermion Correspondence in Quantum Field Theory’, J. Funct. Anal. 44 (1981), 259–327.
Hudson R. L.: ‘Translation-Invariant Integrals, and Fourier Analysis on Clifford and Grassmann Algebras’, J. Funct. Anal. 37 (1980), 68–87.
Carey A. L., Hurst C. A. and O'Brien D. M.: ‘Automorphisms of the Canonical Anticommutation Relations and Index Theory’, J. Funct. Anal. 48 (1982), 360–393.
Carey A. L. and O'Brien D. M.: ‘Absence of Vacuum Polarization in Fock Space’, Lett. Math. Phys. 6 (1982), 335–340.
Carey A. L. and O'Brien D. M.: ‘Automorphisms of the Infinite Dimensional Clifford Algebra and the Atiyah-Singer mod 2 Index’, Toplogy 22 (1983), 437–448.
Carey A. L., Hurst C. A., and O'Brien D. M.: ‘Fermion Currents in 1+1 Dimensions’, J. Math. Phys. 24 (1983), 2212–2221.
Carey A. L.: ‘Infinite Dimensional Groups and Quantum Field Theory’, Acta Appl. Math. 1 (1983), 321–331.
Flanders H.: Differential Forms, Academic Press, New York, 1963.
Cartan H.: Differential Forms, Hermann, Paris, 1970.
VonWestenholz C.: Differential Forms in Mathematical Physics, North-Holland, Amsterdam, 1978.
Salingaros N.: ‘Relativistic Motion of a Charged Particle, the Lorentz Group, and the Thomas Precession’, J. Math. Phys. 25 (1984), 706–716.
Salingaros N. and Ilamed Y.: ‘Algebraic Field Descriptions in Three-Dimensional Euclidean Space’, Found. Phys. 14 (1984), 777–797.
Cercignani C.: ‘Linear Representation of Spinors by Tensors’, J. Math. Phys. 8 (1967), 417–422.
Salingaros N.: ‘Physical Algebras in Four Dimensions II: The Majorana Algebra’, Adv. Appl. Math. 4 (1983), 31–38.
Salingaros N.: ‘Invariants of the Electromagnetic Field and Electromagnetic Waves’, Amer. J. Phys. 53 (1985), 361–363.
Caianiello E. R. and Fubini S.: ‘On the Algorithm of Dirac Spurs’, Nuovo Cim. 9 (1952), 1218–1226.
Bjorken J. D. and Drell S. D.: Relativistic Quantum Mechanics, McGraw-Hill, New York, 1964.
Itzykson C. and Zuber J. B.: Quantum Field Theory, McGraw-Hill, New York, 1980.
Chisholm J. S. R.: ‘Relativistic Scalar Product of Gamma Matrices’, Nuovo Cim. 30 (1963), 426–428.
Kahane J.: ‘Algorithm for Reducing Contracted Products of Gamma Matrices’, J. Math. Phys. 9 (1968), 1732–1738.
Kennedy A. D.: ‘Clifford Algebras in 2ω Dimensions’, J. Math. Phys. 22 (1981), 1330–1337.
Takahashi Y.: ‘Reconstruction of a Spinor via Fierz Identities’, Phys. Rev. D 26 (1982), 2169–2171.
Takahashi Y.: ‘The Fierz Identities — a Passage Between Spinors and Tensors’, J. Math. Phys. 24 (1983), 1783–1790.
Artin E., Nesbitt C. J. and Thrall R M.: Rings with Minimum Condition, Univ. Michigan Press, Ann Arbor, 1944.
Herstein, I. N.: Noncommutative Rings, Math. Assoc. Amer., 1968 (Carus Mathematical Monographs No. 15).
Jacobson N.: Structure of Rings, Amer. Math. Soc. Providence, R.I., 1956 (Colloquium Publications, Vol. 37).
Van derWaerden B. L.: Algebra, Vol. 2, Ungar, New York, 1970.
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Salingaros, N.A., Wene, G.P. The Clifford algebra of differential forms. Acta Appl Math 4, 271–292 (1985). https://doi.org/10.1007/BF00052466
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DOI: https://doi.org/10.1007/BF00052466