Resonant tunnelling lifetimes in multi-barrier structures - a complex coordinate approach

The complex coordinate approach, widely used in theoretical atomic spectroscopy, is applied here to study energies and lifetimes of resonant tunnelling in double-barrier heterostructures within an applied electric field. The method gives very accurate results and they are compared with those obtained by other methods. Possible applications of this method for studying resonant states in various low-dimensional structures are discussed.

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