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29 March 2024
 
  » arxiv » quant-ph/0210009

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Transient tunneling effects of resonance doublets in triple barrier systems
Roberto Romo ; Jorge Villavicencio (Universidad Autonoma de Baja California ; Gaston Garcia-Calderon ;
Date 2 Oct 2002
Journal Phys. Rev. B 66, 033108 (2002)
Subject quant-ph
AffiliationUniversidad Autonoma de Baja California), Jorge Villavicencio (Universidad Autonoma de Baja California (also at Universidad Nacional Autonoma de Mexico)), and Gaston Garcia-Calderon (Universidad Nacional Autonoma de Mexico
AbstractTransient tunneling effects in triple barrier systems are investigated by considering a time-dependent solution to the Schrödinger equation with a cutoff wave initial condition. We derive a two-level formula for incidence energies $E$ near the first resonance doublet of the system. Based on that expression we find that the probability density along the internal region of the potential, is governed by three oscillation frequencies: one of them refers to the well known Bohr frequency, given in terms of the first and second resonance energies of the doublet, and the two others, represent a coupling with the incidence energy $E$. This allows to manipulate the above frequencies to control the tunneling transient behavior of the probability density in the short-time regime
Source arXiv, quant-ph/0210009
Other source [GID 52648] quant-ph/0210009
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