Beyond fuzzy spheres. (English) Zbl 1189.81110
Summary: We study polynomial deformations of the fuzzy sphere, specifically given by the cubic or the Higgs algebra. We derive the Higgs algebra by quantizing the Poisson structure on a surface in \(\mathbb R^3\). We find that several surfaces, differing by constants, are described by the Higgs algebra at the fuzzy level. Some of these surfaces have a singularity and we overcome this by quantizing this manifold using coherent states for this nonlinear algebra. This is seen in the measure constructed from these coherent states. We also find the star product for this non-commutative algebra as a first step in constructing field theories on such fuzzy spaces.
MSC:
81R60 | Noncommutative geometry in quantum theory |
81R15 | Operator algebra methods applied to problems in quantum theory |
08A72 | Fuzzy algebraic structures |
81S10 | Geometry and quantization, symplectic methods |
81R30 | Coherent states |
11C08 | Polynomials in number theory |