Quantum state tomography with nanooptical fields

Details Quantum state tomography with nanooptical fields Quantum state tomography with nanooptical fields

2012-01-09

arxiv.org/abs/1201.1765v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

12 pages, 5 figures

Scientific paper

We show that using coherent, spatially resolved spectroscopy, complex hybrid wave functions can be disentangled into the individual wave functions of the individual emitters. This way, detailed information on the coupling of the individual emitters, not available in far-field spectroscopy can be obtained. The proposed quantum state tomography relies on the ability to selectively excite each emitter individually by spatially localized pulses. Simulations of coupled semiconductor Ga/InAs quantum dots, using light fields available in current nanoplasmonics, show that even undesired resonances can be removed from measured spectra. The method can also be applied to study the internal coupling of pigments in photosythesis and artificial light harvesting.

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