Luis Aina, Alfredo2023-06-202023-06-202007-05-301050-294710.1103/PhysRevA.75.052115https://hdl.handle.net/20.500.14352/51493©2007 The American Physical Society. A.L. acknowledges support from Project No. PR1-A/07-15378 of the Universidad Complutense.The use of Rényi entropy as an uncertainty measure alternative to variance leads to the study of states with quantum fluctuations below the levels established by Gaussian states, which are the position-momentum minimum uncertainty states according to variance. We examine the quantum properties of states with exponential wave functions, which combine reduced fluctuations with practical feasibility.engjournal articlehttp://dx.doi.org/10.1103/PhysRevA.75.052115http://journals.aps.org/open access535Nonclassical statesPhase-spaceUncertainty relationsLocalizationInformationDiffractionNegativityStandardEntropyTheoremÓptica (Física)2209.19 Óptica Física