Abstract:
Let K be a connected Lie group of compact type and let T *(K) be its cotangent bundle. This paper considers geometric quantization of T *(K), first using the vertical polarization and then using a natural Kähler polarization obtained by identifying T *(K) with the complexified group K ℂ. The first main result is that the Hilbert space obtained by using the Kähler polarization is naturally identifiable with the generalized Segal–Bargmann space introduced by the author from a different point of view, namely that of heat kernels. The second main result is that the pairing map of geometric quantization coincides with the generalized Segal–Bargmann transform introduced by the author. This means that the pairing map, in this case, is a constant multiple of a unitary map. For both results it is essential that the half-form correction be included when using the Kähler polarization.
These results should be understood in the context of results of K. Wren and of the author with B. Driver concerning the quantization of (1+1)-dimensional Yang–Mills theory. Together with those results the present paper may be seen as an instance of “quantization commuting with reduction”.
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Received: 28 June 2001 / Accepted: 17 September 2001
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Hall, B. Geometric Quantization¶and the Generalized Segal--Bargmann Transform¶for Lie Groups of Compact Type. Commun. Math. Phys. 226, 233–268 (2002). https://doi.org/10.1007/s002200200607
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DOI: https://doi.org/10.1007/s002200200607