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Rasetti, M.

Publications and source records attributed to Rasetti, M..

Q-derivatives, coherent states and squeezing

We show that the q-deformation of the Weyl-Heisenberg (q-WH) algebra naturally arises in discretized systems, coherent states, squeezed states and systems with periodic potential on the lattice. We incorporate the q-WH algebra into the theory of (entire) analytical functions, with applications to theta and Bloch functions.

Celeghini, E.↗

A second quantized model of anharmonicity.

A heuristic description is given for a simple harmonic oscillator as a basis for a model of anharmonicity. A formalism is applied in the process, which applies to complex excitation fields involving particle clusters and also facilitates a description of nonequilibrium multibody configurations by classical methods. The heuristic description is based on Streit's results (1965) and is free of linearization requirements in most physically interesting situations.

Rasetti, M.↗

Topological structure of an anharmonically coupled many-body system.

It has been proposed recently that the description of a many-body system with anharmonic coupling could be achieved through the use of the generalized Bose operators of Brandt and Greenberg (1969) directly in a second quantized form. The present study describes a new formulation of the generalized Bose operators which exploits the group theoretical content of these operators.

Rasetti, M.↗