nt - p h / 96 10 03 9 v 2 2 7 N ov 1 99 6 A New Time - Scale for Tunneling

ar X iv : q ua nt - p h / 96 10 03 9 v 1 2 5 O ct 1 99 6 A New Time - Scale for Tunneling

We study the tunneling through an oscillating delta barrier. Using time peri-odicity of the model, the time-dependent Schrödinger equation is reduced to a simple but infinite matrix equation. Employing Toeplitz matrices methods, the infinite matrix is replaces by a 3×3 matrix, allowing an analytical solution. Looking at the frequency dependence of the transmission amplitudes, one observes a new...

ua nt - p h / 96 03 01 8 v 1 1 3 M ar 1 99 6 On the concept of the tunneling time

Asymptotic time evolution of a wave packet describing a non-relativistic particle incident on a potential barrier is considered, using the Wigner phase-space distribution. The distortion of the trasmitted wave packet is determined by two time-like parameters, given by the energy derivative of the complex transmission amplitude. The result is consistent with various definitions of the tunneling ...

FREZCHEM: A geochemical model for cold aqueous solutions

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ar X iv : h ep - p h / 96 11 30 6 v 1 1 2 N ov 1 99 6 INTRODUCTION TO THE POMERON 1

ua nt - p h / 96 05 03 6 v 1 2 7 M ay 1 99 6 Bose - Einstein Correlations and Sonoluminescence

Sonoluminescence may be studied in detail by intensity correlations among the emitted photons. As an example, we discuss an experiment to measure the size of the light-emitting region by the Hanbury Brown-Twiss effect. We show that single bubble sonoluminescence is almost ideally suited for study by this method and that plausible values for the physical parameters are within easy experimental r...