Heidelberg 2015 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 62: Poster: Quantum Optics and Photonics III

Q 62.58: Poster

Thursday, March 26, 2015, 17:00–19:00, C/Foyer

Generation of squeezed light and quantum correlations from few emitters in a nanostructure — •Harald R. Haakh and Diego Martin-Cano — Max Planck Institute for the Science of Light, Erlangen, Germany.

Squeezed states of light, together with entangled qbit states, provide the most striking examples of quantumness. Despite their high technological relevance, they remain hard to address in resonance fluorescence of individual quantum emitters, which form one of the most fundamental systems in quantum optics [1]. Instead, squeezed light has been commonly generated in large systems such as nonlinear crystals, atomic vapors and microcavities [2,3]. We investigate the generation of squeezed light by one or two quantum emitters coupled to a nanostructure and show how nanoarchitectures strongly modify the creation of squeezed light in resonance fluorescence. This allows for brighter sources with a larger bandwidth and overcoming phononic dephasing [4], which could lend themselves to the integration in nanophotonic devices. We assess prospects of enhancing the nonlinearity by using a pair of emitters. The results elucidate the connection between squeezed light emission and quantum correlations.

References

[1] Walls and Zoller, Phys. Rev. Lett. 47, 709 (1981).

[2] Ourjoumtsev et al., Nature 474, 626 (2011).

[3] Grünwald and Vogel, Phys. Rev. Lett. 109, 013601 (2012)

[4] Martín Cano, Haakh, Murr and Agio, Phys. Rev. Lett. (2014).