This introduction to
deformation quantisation will focus on the construction of star products on
symplectic and Poisson manifolds. It corresponds to the first four lectures I gave at
the 2005 Summer School on Poisson Geometry in Trieste.
The first two lectures introduced the general concept of formal deformation
quantisation with examples, with Fedosov’s construction of a star product on a
symplectic manifold and with the classification of star products on a symplectic
manifold.
The next lectures introduced the notion of formality and its link with star
products, gave a flavour of Kontsevich’s construction of a formality for ℝd and a
sketch of the globalisation of a star product on a Poisson manifold following the
approach of Cattaneo, Felder and Tomassini.
The notes here are a brief summary of those lectures; I start with a further
reading section which includes expository papers with details of what is
presented.
In the last lectures I only briefly mentioned different aspects of the deformation
quantisation programme such as action of a Lie group on a deformed product,
reduction procedures in deformation quantisation, states and representations in
deformed algebras, convergence of deformations, leaving out many interesting and
deep aspects of the theory (such as traces and index theorems, extension to fields
theory); these are not included in these notes and I include a bibliography with many
references to those topics.
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