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

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

2006-11-15

arxiv.org/abs/quant-ph/0611164v1

S. Longhi, Phys. Rev. Lett. 97, 110402 (2006)

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevLett.97.110402

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.

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