Berlin 2018 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 4: Quantum dots and wires: Optical properties I
HL 4.4: Vortrag
Montag, 12. März 2018, 10:15–10:30, EW 201
Single photons from a quantum dot interacting with an atomic vapor: model and simulation — •Julian Maisch1, Hüseyin Vural1, Simone L. Portalupi1, Simon Kern1, Jonas Weber1, Michael Jetter1, Jörg Wrachtrup2, Robert Löw3, Ilja Gerhardt2, and Peter Michler1 — 1Institut für Halbleiteroptik und Funktionelle Grenzflächen, IQST and SCoPE, University of Stuttgart, Allmandring 3, 70569 Stuttgart — 23. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart — 35. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart
For future quantum network applications, hybrid quantum systems provide promising capabilities. One example for such a system is the interface between single photons from a quantum dot (QD) and an alkali vapor as storage medium. In any application, it is essential to know the properties of the investigated photons.
Therefore, a detailed investigation of the photon-atom interaction is necessary. Beyond experimental results, numerical simulations embody a powerful tool for this task. The presented framework adapts the description of particle diffusion to take the effects of spectral diffusion in a QD into account. Moreover, the influence of the vapor is considered via the complex refractive index. Altogether, all realized experimental observations (time-correlated single-photon measurements and two-photon interference measurements) can be understood on one basis. Additionally, the simulations can be possibly extended for the description of photon propagation in other media.