Wydarzenia

Temat: Broad Perspectives on Coherent State Factories: Multiple Constructions and Applications
Prowadzący: Jean-Pierre Gazeau - Université Paris Cité

Coherent states were named by Glauber in quantum optics (1963) but had appeared earlier in various fields. Schrödinger (1926) introduced them in quantum mechanics as wave packets following classical trajectories. Gabor (1946) rediscovered them in signal analysis and information theory, introducing Gabor wavelets as minimum uncertainty states. Closely related constructs emerged in works by Feynman (1948–1955) and Schwinger (1953) in quantum field theory, Klauder (1963) in quantum formalism, and Sudarshan (1963) in quantum optics. Since then, coherent states - both in their original and generalized forms - have influenced quantum mechanics, field theory, chemistry, signal processing, and mathematics (harmonic analysis, functional analysis, group representation theory). Their impact extends even to finance and traffic modeling. This talk is aimed to provide a (partial, of course!) overview of their historical evolution and technical developments from a unifying perspective.