2015
DOI: 10.18273/revint.v33n2-2015004
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Groenewold-von Neumann product via Segal-Bargmann transform

Abstract: Abstract. Using standard techniques from geometric quantization, we rederive the product of functions on R 2 which was first introduced by von Neumann and later reintroduced by Groenewold and which is the integral version of the Moyal product. More specifically, by pairing the diagonal real polarization on the pair groupoid R 2 × R 2 with its standard holomorphic polarization, we obtain the well-known Segal-Bargmann transform in a rotated and scaled (and half-conjugated) form. Together with a convolution of fu… Show more

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“…The integral version of the Weyl-Moyal product of functions on ℝ 2n , also known as the Groenewold-von Neumann product, has been obtained and reobtained in various ways since the original work of von Neumann [4]. But in [5], Gracia-Bondia and Varilly rederived this product via geometric quantization (see [6] for example), using the pairing of two nontransversal real polarizations on the pair groupoid ℝ 2n × ℝ 2n one being the polarization F V described above.…”
Section: Introductionmentioning
confidence: 99%
“…The integral version of the Weyl-Moyal product of functions on ℝ 2n , also known as the Groenewold-von Neumann product, has been obtained and reobtained in various ways since the original work of von Neumann [4]. But in [5], Gracia-Bondia and Varilly rederived this product via geometric quantization (see [6] for example), using the pairing of two nontransversal real polarizations on the pair groupoid ℝ 2n × ℝ 2n one being the polarization F V described above.…”
Section: Introductionmentioning
confidence: 99%