Details
| Original language | English |
|---|---|
| Pages (from-to) | 367-373 |
| Number of pages | 7 |
| Journal | OPTICA |
| Volume | 5 |
| Issue number | 4 |
| Publication status | Published - 27 Mar 2018 |
| Externally published | Yes |
Abstract
Keywords
- Quantum Hybrid Systems, Atomic Vapors, Cesium, Quantum Dots, Hong-Ou-Mandel
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: OPTICA, Vol. 5, No. 4, 27.03.2018, p. 367-373.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Two-photon interference in an atom-quantum dot hybrid system
AU - Vural, Hüseyin
AU - Portalupi, Simone L.
AU - Maisch, Julian
AU - Kern, Simon
AU - Weber, Jonas H.
AU - Jetter, Michael
AU - Wrachtrup, Jörg
AU - Löw, Robert
AU - Gerhardt, Ilja
AU - Michler, Peter
N1 - Funding information: Deutsche Forschungsgemeinschaft (DFG) (GE 2737/55, MI 500/30-1); Max-Planck-Gesellschaft (MPG); Baden-Württemberg Stiftung Post-doc Eliteprogramm via the project “Hybride Quantensysteme für Quantensensorik.”
PY - 2018/3/27
Y1 - 2018/3/27
N2 - Future quantum networks will need flying qubits and stationary nodes. As for the generation of single photons which may act as flying qubits, resonantly-excited single semiconductor quantum dots are ideal in terms of their on-demand single-photon emission, their indistinguishability, and their brightness. Atomic systems can effectively act as mediators for photon-photon interactions, storage media, or building blocks for stationary qubits. Here we hybridize these two systems and investigate the non-classical interference of spectral Lorentzian-shaped photons, fine-tuned between the cesium (Cs)-D1 hyperfine resonances. The temporal delay in the hot dispersive atomic cesium vapor amounts up to 50 times the photons initial width and reveals beats on the single quanta. The photons' indistinguishability is preserved even after atomic-enabled delay. This proves that the interaction with the Cs-vapor conserves the photons' coherence. The role of spectral diffusion in the solid state emitter is studied via the strong dependence of the single and two-photon experiments on the frequency. Our results pave the way to efficient hybrid interfaces between quantum dots and hot atomic vapors as storage media in future quantum networks.
AB - Future quantum networks will need flying qubits and stationary nodes. As for the generation of single photons which may act as flying qubits, resonantly-excited single semiconductor quantum dots are ideal in terms of their on-demand single-photon emission, their indistinguishability, and their brightness. Atomic systems can effectively act as mediators for photon-photon interactions, storage media, or building blocks for stationary qubits. Here we hybridize these two systems and investigate the non-classical interference of spectral Lorentzian-shaped photons, fine-tuned between the cesium (Cs)-D1 hyperfine resonances. The temporal delay in the hot dispersive atomic cesium vapor amounts up to 50 times the photons initial width and reveals beats on the single quanta. The photons' indistinguishability is preserved even after atomic-enabled delay. This proves that the interaction with the Cs-vapor conserves the photons' coherence. The role of spectral diffusion in the solid state emitter is studied via the strong dependence of the single and two-photon experiments on the frequency. Our results pave the way to efficient hybrid interfaces between quantum dots and hot atomic vapors as storage media in future quantum networks.
KW - Quantum Hybrid Systems
KW - Atomic Vapors
KW - Cesium
KW - Quantum Dots
KW - Hong-Ou-Mandel
UR - http://www.scopus.com/inward/record.url?scp=85045966186&partnerID=8YFLogxK
U2 - 10.1364/OPTICA.5.000367
DO - 10.1364/OPTICA.5.000367
M3 - Article
VL - 5
SP - 367
EP - 373
JO - OPTICA
JF - OPTICA
SN - 2334-2536
IS - 4
ER -