Non-exponential decay via tunneling in tight-binding lattices and the optical Zeno effect

Abstract

An exactly-solvable model for the decay of a metastable state coupled to a semi-infinite tight-binding lattice, showing large deviations from exponential decay in the strong coupling regime, is presented. An optical realization of the lattice model, based on discrete diffraction in a semi-infinite array of tunneling-coupled optical waveguides, is proposed to test non-exponential decay and for the observation of an optical analog of the quantum Zeno effect.

References in corpus (1)

• Electron wavepacket propagation and entanglement in a chain of coupled quantum dots

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