Bremsstrahlung radiation by a tunneling particle: A time-dependent description
نویسندگان
چکیده
منابع مشابه
Tunneling in a time-dependent setting.
A standard approach to analyzing tunneling processes in various physical contexts is to use instanton or imaginary time path techniques. For systems in which the tunneling takes place in a time dependent setting, the standard methods are often applicable only in special cases, e.g. due to some additional symmetries. We consider a collection of time dependent tunneling problems to which the stan...
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Solutions to explicit time-dependent problems in quantum mechanics are rare. In fact, all known solutions are coupled to specific properties of the Hamiltonian and may be divided into two categories: One class consists of time-dependent Hamiltonians which are not higher than quadratic in the position operator, like i.e. the driven harmonic oscillator with time-dependent frequency. The second cl...
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Tunneling through time-dependent potentials is of relevance to a number of physical problems. Using a WKB analysis Azbel' has recently studied the effects of a nonharmonic time-dependent perturbation embedded in an opaque potential barrier. He suggests the existence of three different regimes for transmission in such systems: direct tunneling, activation assisted tunneling, and elevator resonan...
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A new semiclassical approach to ionization by an oscillating field is presented. For a δ–function atom, an asymptotic analysis is performed with respect to a quantity h, defined as the ratio of photon energy to ponderomotive energy. This h appears formally equivalent to Planck’s constant in a suitably transformed Schrödinger equation and allows semiclassical methods to be applicable. Systematic...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 1999
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.60.031602