Discrete squeezed states for finite-dimensional spaces

Abstract

We show how discrete squeezed states in an $N^2$-dimensional phase space can be properly constructed out of the finite-dimensional context. Such discrete extensions are then applied to the framework of quantum tomography and quantum information theory with the aim of establishing an initial study on the interference effects between discrete variables in a finite phase-space. Moreover, the interpretation of the squeezing effects is seen to be direct in the present approach, and has some potential applications in different branches of physics.

16 pages; 3 figures

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• Theoretical formulation of finite-dimensional discrete phase spaces: II. On the uncertainty principle for Schwinger unitary operators
• From the discrete Weyl -- Wigner formalism for symmetric ordering to a number -- phase Wigner function
• Discrete coherent states for n qubits
• Quasi-probability distributions in Loop Quantum Cosmology
• Tomography from collective measurements
• Lattice oscillator model, scattering theory and a many-body problem
• A squeezing formalism for finite dimensional quantum systems
• Multi-Operator Quantum Uncertainty Relations from New Cauchy-Schwarz Inequalities