Coherent states for the Manin plane via Toeplitz quantization

Abstract

In the theory of Toeplitz quantization of algebras, as developed by the second author, coherent states are defined as eigenvectors of a Toeplitz annihilation operator. These coherent states are studied in the case when the algebra is the generically non-commutative Manin plane. In usual quantization schemes, one starts with a classical phase space and then quantizes it in order to produce annihilation operators and then their eigenvectors and eigenvalues. However, we do this in the opposite order, namely, the set of the eigenvalues of the previously defined annihilation operator is identified as a generalization of a classical mechanical phase space. We introduce the resolution of the identity, upper and lower symbols, and a coherent state quantization, which in turn quantizes the Toeplitz quantization. We thereby have a curious composition of quantization schemes. We proceed by identifying a generalized Segal–Bargmann space SB of square-integrable, anti-holomorphic functions as the image of a coherent state transform. Then, SB has a reproducing kernel function, which allows us to define a secondary Toeplitz quantization, whose symbols are functions. Finally, this is compared with the coherent states of the Toeplitz quantization of a closely related non-commutative space known as the paragrassmann algebra.