Enhanced tunneling through nonstationary barriers

Journal Article · Thu Nov 15 00:00:00 EST 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.76.052103· OSTI ID:21027947

Palomares-Baez, J P; Rodriguez-Lopez, J L ^[1]; Ivlev, B ^[2]

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1. Advanced Materials Department, Instituto Potosino de Investigacion Cientifica y Tecnologica, San Luis Potosi, San Luis Potosi 78231 (Mexico)
2. Department of Physics and Astronomy and NanoCenter, University of South Carolina, Columbia, South Carolina 29208 (United States)

Quantum tunneling through a nonstationary barrier is studied analytically and by a direct numerical solution of Schroedinger equation. Both methods are in agreement and say that the main features of the phenomenon can be described in terms of classical trajectories which are solutions of Newton's equation in complex time. The probability of tunneling is governed by analytical properties of a time-dependent perturbation and the classical trajectory in the plane of complex time. Some preliminary numerical calculations of Euclidean resonance (an easy penetration through a classical nonstationary barrier due to an underbarrier interference) are presented.

• OSTI ID: 21027947
• Journal Information: Physical Review. A, Vol. 76, Issue 5; Other Information: DOI: 10.1103/PhysRevA.76.052103; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DISTURBANCES
INTERFERENCE
NUMERICAL SOLUTION
PERTURBATION THEORY
PROBABILITY
RESONANCE
SCHROEDINGER EQUATION
TIME DEPENDENCE
TRAJECTORIES
TUNNEL EFFECT