Abstract
Generalized coherent states provide a means of connecting square integrable representations of a semi-simple Lie group with the symplectic geometry of some of its homogeneous spaces. In the first part of the present work this point of view is extended to the supersymmetric context through the study of the OSp(2/2) coherent states. These are explicitly constructed starting from the known abstract typical and atypical representations of osp(2/2). Their underlying geometries turn out to be those of supersymplectic OSp(2/2)-homogeneous spaces. Moment maps identifying the latter with coadjoint orbits of OSp(2/2) are exhibited via Berezin's symbols. When considered within Rothstein's general paradigm, these results lead to a natural general definition of a super-Kähler supermanifold, the supergeometry of which is determined in terms of the usual geometry of holomorphic Hermitian vector bundles over Kähler manifolds. In particular, the supergeometry of the above orbits is interpreted in terms of the geometry of Einstein-Hermitian vector bundles. In the second part, an extension of the full geometric quantization procedure is applied to the same coadjoint orbits. Thanks to the super-Kähler character of the latter, this procedure leads to explicit super-unitary irreducible representations of osp(2/2) in super-Hilbert spaces of superholomorphic square-integrable sections of prequantum bundles of the Kostant type. This work lays the foundations of a program aimed at classifying Lie supergroups' coadjoint orbits and their associated irreducible representations, ultimately leading to harmonic superanalysis. For this purpose a set of consistent conventions is exhibited.
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References
Schrödinger, E.: Der stetige übergang von der Mikro-zur Makromechanik. Naturwissenschaften14, 664 (1926)
Glauber, R.J.: The quantum theory of optical coherence. Phys. Rev.130, 2529 (1963); Coherent and incoherent states of the radiation field. Phys. Rev.131, 2766 (1963)
Perelomov, A.: Generalized Coherent States and Their Applications. Berlin, Heidelberg, New York: Springer, 1986
Klauder, J.R., Skagerstam, B.-S.: Coherent States—Applications in Physics and Mathematical Physics. Singapore: World Scientific, 1985
Daubechies, I.: Ten Lectures on Wavelets. CBMS-NSF Regional Conference Series in Applied Mathematics61, Philadelphia: SIAM, 1992
Berezin, F.A.: General concept of quantization. Commun. Math. Phys.40, 153 (1975)
Onofri, E.: A note on coherent state representations of Lie groups. J. Math. Phys.16, 1087 (1975)
El Gradechi, A.M.: On the supersymplectic homogeneous superspace underlying the OSp(1/2) coherent states. J. Math. Phys.34, 5951 (1993)
El Gradechi, A.M.: Geometric quantization of an OSp(1/2) coadjoint orbit. Lett. Math. Phys.35, 13 (1995)
Zhang, W.M., Feng, D.H., Gilmore, R.: Coherent states: Theory and some applications. Rev. Mod. Phys.26, 867 (1990)
Delbourgo, R.: Minimal uncertainty states for the rotatin and allied groups. J. Phys. A: Math. Gen.10, 1837 (1977); Delbourgo, R., Fox, J.R.: Maximum weight vectors possess minimal uncertainty. J. Phys. A: Math. Gen.10, L235 (1977)
De Bièvre, S., El Gradechi, A.M.: Quantum mechanics and coherent states on the anti-de Sitter spacetime and their Poincaré contraction. Ann. Inst. H. Poincaré57, 403 (1992)
Radcliffe, J.M.: Some properties of spin coherent states. J. Phys. A: Gen. Phys.4, 313 (1971)
Ali, S.T., Antoine, J.-P.: Coherent states of the 1+1-dimensional Poincaré group: Square integrability and a relativistic Weyl transform. Ann. Inst. H. Poincaré51, 23 (1989); Ali, S.T., Antoine, J.-P., Gazeau, J.-P.: De Sitter to Poincaré contraction and relativistic coherent states. Ann. Inst. H. Poincaré52, 83 (1990)
Ali, S.T., Antoine, J.-P., Gazeau, J.-P.: Square integrability of group, representations on homogeneous spaces. I. Reproducing triples and frames. Ann. Inst. H. Poincaré55, 829 (1991); II. Coherent and quasi-coherent states. The case of the Poincaré group. Ann. Inst. H. Poincaré55, 857 (1991)
Kirillov, A.: Eléments de la théorie des représentations. Moscou: Editions Mir, 1974; The method of orbits in representation theory. In: Lie Groups and Their Representations. Gelfand, I.M. (ed.), Budapest: Akadémiai Kiadó, 1975, p. 219
Kostant, B.: Quantization and unitary representation In: Lecture Notes in Mathematics170, Berlin, Heidelberg, New York: Springer, 1970, p. 87
Souriau, J.M.: Structure des systèmes dynamiques. Paris: Dunod, 1970
Bayen, F., Flato, M., Fronsdal, C., Lichnerowicz, A., Sternheimer, D.: Deformation theory and quantization. Ann. Phys. (N.Y.)111, 61 (1978)
Freund, P.G.O.: Introduction to Supersymmetry. Cambridge: Cambridge University Press, 1986
Berezin, F.A.: The Method of Second Quantization. New York: Academic Press 1966
Berezin, F.A.: Introduction to Superanalysis. Dordrecht: Reidel, 1987; The mathematical basis of supersymmetric field theories. Soviet J. Nucl. Phys.29, 857 (1979)
Cornwell, J.F.: Group Theory in Physics Vol. 3-Supersymmetries and Infinite Dimensional Algebras. London: Academic Press 1989
Scheunert, M.: The Theory of Lie Superalgebras—An Introduction. Lecture Notes in Mathematics716, Berlin, Heidelberg, New York: Springer, 1979
Kac, V.: Representations of classical Lie superalgebras. In: Lecture Notes in Mathematics676, Berlin: Springer-Verlag, 1978, p. 597
Leites, D.A.: Introduction to the theory of supermanifolds. Russ. Math. Surv.35, 1 (1980)
DeWitt, B.S.: Supermanifolds. 2nd Edition, Cambridge: Cambridge, University Press, 1992
Kostant, B.: Graded manifolds, graded Lie theory and prequantization. In: Conference on Differential Geometric Methods in Mathematical Physics. Bleuler, K., Reetz, A.: eds., Lecture Notes in Mathematics570, Berlin, Heidelberg, New York: Springer 1977, p. 177
Manin, Y.I.: Gauge Field Theory and Complex Geometry. Berlin: Springer, 1988
Bartocci, C., Bruzzo, U., Hernández-Ruipérez, D.: The Geometry of Supermanifolds. Dordrecht: Kluwer Academic Publishers, 1991
Tuynman, G.M.: Supermanifolds: A Geometric Approach. Book in preparation
Scheunert, M., Nahm, W., Rittenberg, V.: Irreducible representations of the osp(2, 1) and spl(2, 1) graded Lie algebras. J. Math. Phys.18, 155 (1977)
Nishiyama, K.: Characters and super-characters of discrete series representations for orthosymplectic Lie superalgebras. J. Algebra141, 399 (1991)
Balantekin, A.B., Schmitt, H.A., Barrett, B.R.: Coherent states for the harmonic oscillator representations of the orthosymplectic supergroup OSp(1/2N, R). J. Math. Phys.29, 1634 (1988)
Balantekin, A.B., Schmitt, H.A., Halse, P.: Coherent states for the noncompact supergroups OSp(2/2N, R). J. Math. Phys.30, 274 (1989)
Fatyga, B.W., Kostelecký, V.A., Nieto, M.M., Truax, D.R.: Supercoherent states. Phys. Rev.D43, 1403 (1991)
Duval, C., Horváthy, P.A.: On Schrödinger superalgebras. J. Math. Phys.35, 2516 (1994)
Rothstein, M.: The structure of supersymplectic supermanifolds. In: Differential Geometric Methods in Mathematical Physics, Bartocci, C., Bruzzo, U., Cianci, R. eds., Lecture Notes in Physics375, Berlin, Heidelberg, New York: Springer, 1991, p. 331
Monterde, J.: A characterization of graded symplectic structures. Differential Geom. Appl.2, 81 (1992)
Frappat, L., Sciarrino, A., Sorba, P.: Structure of basic Lie superalgebras and of their affine extensions. Commun. Math. Phys.121, 457 (1989), and references therein
Sternberg, S., Wolf, J.: Hermitian Lie algebras and metaplectic representations. Trans. Am. Math. Soc.238, 1 (1978)
Green, P.: On holomorphic graded manifolds. Proc. Am. Math. Soc.85, 587 (1982)
Rothstein, M.: Deformations of complex supermanifolds. Proc. Am. Math. Soc.95, 255 (1985)
Batchelor, M.: The structure of supermanifolds. Trans. Am. Math. Soc.253, 329 (1979)
Kobayashi, S.: Differential Geometry of Complex Vector Bundles. Princeton, NJ: Princeton University Press, 1987
Woodhouse, N.M.J.: Geometric Quantization. Oxford: Clarendon Press, 1980
Kirillov, A.A.: Geometric quantization. In: Dynamical Systems IV, Arnol'd, V.I., Novikov, S.P. eds., Berlin, Heidelberg, New York: Springer, 1990, p. 137
Tuynman, G.M.: Geometric quantization of the BRST charge. Commun. Math. Phys.150, 237 (1992)
Schaller, P., Schwarz, G.: Anomalies from geometric quantization of fermionic field theories. J. Math. Phys.31, 2366 (1990)
Borthwick, D., Klimek, S., Lesniewski, A., Rinaldi, M.: Super Toeplitz operators and nonperturbative quantization of supermanifolds. Commun. Math. Phys.153, 49 (1993)
Tuynman, G.M.: Quantization: Towards a comparison between methods. J. Math. Phys.28 2829 (1987)
Renouard, P.: Variétés symplectiques et quantification. Thèse, Universié d'Orsay, 1969
Schmitt, T.: Supergeometry and hermitian conjugation. J. Geom. Phys.7, 141 (1990)
Nagamachi, S., Kobayashi, Y.: Hilbert superspace. J. Math. Phys.33, 4274 (1992)
El Gradechi, A.M.: On the super-unitarity of discrete series representations of orthosymplectic Lie superalgebras. Preprint CRM-2279. Submitted
Beckers, J., Gagnon, L., Hussin, V., Winternitz, P.: Superposition formulas for nonlinear superequations. J. Math. Phys.31, 2528 (1990)
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Communicated by S.-T. Yau
Address after October 1, 1995: Faculté des sciences “Jean Perrin”, Université d'Artois, rue Jean Souvraz, S.P. 18, F-62307 Lens, France. E-mail: amine@gat.univ-lillel.fr.
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El Gradechi, A.M., Nieto, L.M. Supercoherent states, super-Kähler geometry and geometric quantization. Commun.Math. Phys. 175, 521–563 (1996). https://doi.org/10.1007/BF02099508
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DOI: https://doi.org/10.1007/BF02099508