Abstract
Classical Segal–Bargmann theory studies three Hilbert space unitary isomorphisms that describe the wave-particle duality and the configuration space-phase space. In this work, we generalized these concepts to Clifford algebra-valued functions. We establish the unitary isomorphisms among the space of Clifford algebra-valued square-integrable functions on \(\mathbb {R}^n\) with respect to a Gaussian measure, the space of monogenic square-integrable functions on \(\mathbb {R}^{n+1}\) with respect to another Gaussian measure and the space of Clifford algebra-valued linear functionals on symmetric tensor elements of \(\mathbb {R}^n\).
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References
Bargmann, V.: On a Hilbert space of analytic functions and an associated integral transform part I. Commun. Pure Appl. Math. 14(3), 187–214 (1961)
Brackx, F., Delanghe, R., Sommen, F.: Clifford Analysis. Pitman Books, Ltd, Boston (1982)
Brackx, F., Schepper, N De., Sommen, F.: The Fourier transform in Clifford analysis. Adv. Imaging Electron Phys. 156, 55–201 (2009)
Dang, P., Mourão, J., Nunes, J.P., Qian, T.: Clifford coherent state transforms on spheres. J. Geom. Phys. 124, 225–232 (2018)
Delanghe, R., Sommen, F., Soucek, V.: Clifford Algebra and Spinor Valued Functions: A Function Theory for the Dirac Operator. Springer, Dordrecht (1992)
Doman, B.G.S.: The Classical Orthogonal Polynomials. World Scientific, Singapore (2016)
Driver, B.K.: On the Kakutani–Itô-Segal–Gross and Segal–Bargmann–Hall isomorphisms. J. Funct. Anal. 133(1), 69–128 (1995)
Gross, L., Malliavin, P.: Hall’s transform and the Segal–Bargmann map. In: Ikeda, N., Watanabe, S., Fukushima, M., Kunita, H. (eds.) Itô’s Stochastic Calculus and Probability Theory, pp. 73–116. Springer, Tokyo (1996)
Hall, B.: The Segal–Bargmann “coherent-state’’ transform for Lie groups. J. Funct. Anal. 122, 103–151 (1994)
Hall, B.: Holomorphic methods in analysis and mathematical physics. Contemp. Math. 260, 1–59 (2000)
Itô, K.: Multiple Wiener integral. J. Math. Soc. Jpn. 3, 157–169 (1951)
Kakutani, S.: Determination of the spectrum of the flow of Brownian motion. Proc. Natl. Acad. Sci. U.S.A. 36, 319–323 (1950)
Kirwin, W.D., Mourão, J., Nunes, J.P., Qian, T.: Extending coherent state transforms to Clifford analysis. J. Math. Phys. 57(10), 103505 (2016)
Lawson, H.B., Marie-Louise, M.: Spin Geometry. Princeton University Press, Princeton (1989)
Mourão, J., Nunes, J.P., Qian, T.: Coherent state transforms and the Weyl equation in Clifford analysis. J. Math. Phys. 58(1), 013503 (2017)
Segal, I.E.: Tensor algebras over Hilbert spaces. Trans. Am. Math. 81, 106–134 (1956)
Segal, I.E.: Mathematical characterization of the physical vacuum for a linear Bose–Einstein field. Ill. J. Math. 6(3), 500–523 (1962)
Segal, I.E.: The complex-wave representation of the free Boson field. In: Gohberg, I., Kac, M. (eds.) Topics in Functional Analysis: Essays Dedicated to M. G. Krein on the Occasion of his 70th Birthday, Advances in Mathematics Supplementary Studies, vol. 3, pp. 321–343. Academic Press, New York (1978)
Sommen, F.: Some connections between Clifford analysis and complex analysis. Complex Var. Elliptic Equ. 1, 97–118 (1982)
Acknowledgements
We would like to thank Brian Hall for his valuable suggestions and also to the anonymous reviewers for helpful comments. This work was partially supported by the Development and Promotion of Science and Technology Talents Project.
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Communicated by Hendrik De Bie.
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Eaknipitsari, S., Lewkeeratiyutkul, W. Clifford Algebra-Valued Segal–Bargmann Transform and Taylor Isomorphism. Adv. Appl. Clifford Algebras 31, 68 (2021). https://doi.org/10.1007/s00006-021-01171-2
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DOI: https://doi.org/10.1007/s00006-021-01171-2