Prohlížení Acta Polytechnica. 2022, vol. 62, no.1 dle názvu

Zobrazují se záznamy 21-22 z 22

    • Time-dependent mass oscillators: constants of motion and semiclasical states 

      Autor: Zelaya, Kevin
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      This work reports the construction of constants of motion for a family of time-dependent mass oscillators, achieved by implementing the formalism of form-preserving point transformations. The latter allows obtaining a ...

    • Time-dependent step-like potential with a freezable bound state in the continuum 

      Autor: Gutiérrez Altamirano, Izamar; Contreras-Astorga, Alonso; Raya Montaño , Alfredo
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      In this work, we construct a time-dependent step-like potential supporting a normalizable state with energy embedded in the continuum. The potential is allowed to evolve until a stopping time ti, where it becomes static. ...