Nonlinear effects in tunnelling escape in N-body quantum systems

Details Nonlinear effects in tunnelling escape in N-body quantum systems Nonlinear effects in tunnelling escape in N-body quantum systems

2004-09-22

arxiv.org/abs/cond-mat/0409581v1

Europhysics Letters (2005) 72, 287

Physics

Condensed Matter

Other Condensed Matter

10 pages, 3 figures

Scientific paper

We consider the problem of tunneling escape of particles from a multiparticle system confined within a potential trap. The process is nonlinear due to the interparticle interaction. Using the hydrodynamic representation for the quantum equations of the multiparticle system we find the tunneling rate and time evolutions of the number of trapped particles for different nonlinearity values.

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