Coherent tunneling by adiabatic passage in an optical waveguide system

Details Coherent tunneling by adiabatic passage in an optical waveguide system Coherent tunneling by adiabatic passage in an optical waveguide system

2007-09-19

arxiv.org/abs/0709.3050v1

Physics

Condensed Matter

Other Condensed Matter

submitted for publication

Scientific paper

10.1103/PhysRevB.76.201101

We report on the first experimental demonstration of light transfer in an engineered triple-well optical waveguide structure which provides a classic analogue of Coherent Tunnelling by Adiabatic Passage (CTAP) recently proposed for coherent transport in space of neutral atoms or electrons among tunneling-coupled optical traps or quantum wells [A.D. Greentree et al., Phys. Rev. B 70, 235317 (2004); K. Eckert et al., Phys. Rev. A 70, 023606 (2004)]. The direct visualization of CTAP wavepacket dynamics enabled by our simple optical system clearly shows that in the counterintuitive passage scheme light waves tunnel between the two outer wells without appreciable excitation of the middle well.

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