122 citations · 531 across the 17 of their papers we have counts for
16 papers · 1 filter
Transient effects and reconstruction of the energy spectra in the time evolution of transmitted Gaussian wave packets
Sergio Cordero, Gaston Garcia-Calderon
We derive an exact analytical solution to the time-dependent Schrödinger equation for transmission of a Gaussian wave packet through an arbitrary potential of finite range. We cons…
Invisibility of quantum systems to tunneling of matter waves
Sergio Cordero, Gaston Garcia-Calderon
We show that an appropriate choice of the potential parameters in one-dimensional quantum systems allows for unity transmission of the tunneling particle at all incident tunneling…
Quantum transients
A. del Campo, G. Garcia-Calderon, J. G. Muga
Quantum transients are temporary features of matter waves before they reach a stationary regime. Transients may arise after the preparation of an unstable initial state or due to a…
Decay by tunneling of Bosonic and Fermionic Tonks-Girardeau Gases
A. del Campo, F. Delgado, G. Garcia-Calderon +2
We study the tunneling dynamics of bosonic and fermionic Tonks-Girardeau gases from a hard wall trap, in which one of the walls is substituted by a delta potential. Using the Fermi…
Full time nonexponential decay in double-barrier quantum structures
Gaston Garcia-Calderon, Jorge Villavicencio
We examine an analytical expression for the survival probability for the time evolution of quantum decay to discuss a regime where quantum decay is nonexponential at all times. We…
Suppression of Zeno effect for distant detectors
F. Delgado, J. G. Muga, G. Garcia-Calderon
We describe the influence of continuous measurement in a decaying system and the role of the distance from the detector to the initial location of the system. The detector is model…
Resonance expansions in quantum mechanics
R. de la Madrid, G. Garcia-Calderon, J. G. Muga
The goal of this contribution is to discuss various resonance expansions that have been proposed in the literature.
The role of initial state reconstruction in short and long time deviations from exponential decay
J. G. Muga, F. Delgado, A. del Campo +1
We consider the role of the reconstruction of the initial state in the deviation from exponential decay at short and long times. The long time decay can be attributed to a wave tha…
Tunneling dynamics in relativistic and nonrelativistic wave equations
F. Delgado, J. G. Muga, A. Ruschhaupt +2
We obtain the solution of a relativistic wave equation and compare it with the solution of the Schroedinger equation for a source with a sharp onset and excitation frequencies belo…
Equivalence between the real time Feynman histories and the quantum shutter approaches for the "passage time" in tunneling
Gaston Garcia-Calderon, Jorge Villavicencio, Norifumi Yamada
We show the equivalence of the functions and for the ``passage time'' in tunneling. The former, obtained within the framework of the real time Feynman h…
Tunneling time scale of under-the-barrier forerunners
Gaston Garcia-Calderon, Jorge Villavicencio
Time-dependent analytical solutions to Schrödinger's equation with quantum shutter initial conditions are used to investigate the issue of the tunneling time of forerunners in rect…
Transient tunneling effects of resonance doublets in triple barrier systems
Roberto Romo, Jorge Villavicencio, Gaston Garcia-Calderon
Transient 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…
Delay time and tunneling transient phenomena
Gaston Garcia-Calderon, Jorge Villavicencio
Analytic solutions to the time-dependent Schrödinger equation for cutoff wave initial conditions are used to investigate the time evolution of the transmitted probability density f…
Early times in tunneling
Gaston Garcia-Calderon, Jorge Villavicencio
Exact analytical solutions of the time-dependent Schrödinger equation with the initial condition of an incident cutoff wave are used to investigate the traversal time for tunneling…
Low-energy relativistic effects and nonlocality in time-dependent tunneling
Gaston Garcia-Calderon, Alberto Rubio, Jorge Villavicencio
We consider exact time-dependent analytic solutions to the Schrödinger equation for tunneling in one dimension with cut off wave initial conditions at . We obtain that as soon…
Reply to the Comment on "Resonant Spectra and the Time Evolution of the Survival and Nonescape Probabilities"
G. Garcia-Calderon, J. L. Mateos, M. Moshinsky
In our paper [Phys. Rev. Lett. 74, 337 (1995)], we derived an exact expression for the survival and nonescape probabilities as an expansion in terms of resonant states. It was show…