Control of Elementary Excitations by Acoustic Fields

DFG-Manipulation of single electrons and single excitons by surface acoustic waves

Figure: (a) Indirect excitons (IX) in a double quantum structure (DQD) and (b) transport of IXs by a surface acoustic wave along a narrow channel with subsequent photon emission (PL).

On-demand single-particle transfer between distant quantum dots combined with the control by quantum gates based on particle-particle interactions provides a pathway for the realization of scalable quantum systems. Moving quantum dots created by surface acoustic waves (SAWs) can transfer single electrons as well as exciton ensembles on-demand with very high fidelity between locations separated by several mm in a semiconductor quantum well. Recently, the electrostatic confinement of single excitons has been demonstrated. When combined with the acoustic transport of excitons, these results open exciting possibilities for exciton-based quantum manipulation in solid-state systems.

This project aims at establishing a common platform for quantum interaction of photonic and electronic excitations based on single electrons and single excitons flying along quantum transport channels provided by moving SAW potentials. The motivation for using flying excitons lies on their easy inter-conversion to photons, thus allowing optical probing and providing a natural interface between electronic and photonic excitation. We use for that purpose long-living indirect excitons (IXs) in a double quantum well structure (see figure). The storage and transport of single IXs by SAWs is investigated using techniques similar to the ones developed for single electrons. Furthermore, in collaboration with our French project partners we study processes for the interaction between single electrons during motion as well as their application to excitons. The long-term goal is the demonstration of particle-particle interactions based on the coherent tunneling between adjacent quantum channels for single flying electrons as well as flying excitons. The latter will provide the necessary ingredients for the future implementation of quantum gates for both electrons and excitons.

This project is a collaboration between the Paul-Drude-Institute and the Institute Néel, Grenoble, France. It is supported by the Deutsche Forschungsgemeinschaft (DFG) and the French ANR in the framework of the grant 625227, "Manipulation of single electrons and single excitons by surface acoustic waves”.

Selected publications:

3	Author	Shintaro Takada , Hermann Edlbauer , Hugo V. Lepage , Junliang Wang , Pierre-André Mortemousque , Giorgos Georgiou , Crispin H. W. Barnes , Chris J. B. Ford , M. Yuan , P. V. Santos , Xavier Waintal , Arne Ludwig , Andreas D. Wieck , Matias Urdampilleta , Tristan Meunier
	Title	Sound-driven single-electron transfer in a circuit of coupled quantum rails
	Source	Nat. Commun. , 10 , 4557 ( 2019 )
DOI : 10.1038/s41467-019-12514-w \| 3150 Cite : Bibtex RIS @article{ author = { Shintaro Takada and Hermann Edlbauer and Hugo V. Lepage and Junliang Wang and Pierre-André Mortemousque and Giorgos Georgiou and Crispin H. W. Barnes and Chris J. B. Ford and M. Yuan and P. V. Santos and Xavier Waintal and Arne Ludwig and Andreas D. Wieck and Matias Urdampilleta and Tristan Meunier }, title = { Sound-driven single-electron transfer in a circuit of coupled quantum rails }, journal = { Nature Communications }, volume = { 10 }, year = { 2019 }, pages = { 4557 } } Shintaro Takada, Hermann Edlbauer, Hugo V. Lepage, Junliang Wang, Pierre-André Mortemousque, Giorgos Georgiou, Crispin H. W. Barnes, Chris J. B. Ford, M. Yuan, P. V. Santos, Xavier Waintal, Arne Ludwig, Andreas D. Wieck, Matias Urdampilleta, and Tristan Meunier TY - JOUR AU - Shintaro Takada AU - Hermann Edlbauer AU - Hugo V. Lepage AU - Junliang Wang AU - Pierre-André Mortemousque AU - Giorgos Georgiou AU - Crispin H. W. Barnes AU - Chris J. B. Ford AU - M. Yuan AU - P. V. Santos AU - Xavier Waintal AU - Arne Ludwig AU - Andreas D. Wieck AU - Matias Urdampilleta AU - Tristan Meunier TI - Sound-driven single-electron transfer in a circuit of coupled quantum rails JF - Nature Communications JA - Nat. Commun. J1 - VL - 10 SP - 4557 PY - 2019/10/08

2	Author	M. Yuan , A. Hernández-Mínguez , K. Biermann , P. V. Santos
	Title	Tunneling blockade and single-photon emission in GaAs double quantum wells
	Source	Phys. Rev. B , 98 , 155311 ( 2018 )
DOI : 10.1103/PhysRevB.98.155311 \| Download: PDF \| 3044 Cite : Bibtex RIS @article{ author = { M. Yuan and A. Hernández-Mínguez and K. Biermann and P. V. Santos }, title = { Tunneling blockade and single-photon emission in GaAs double quantum wells }, journal = { Physical Review B: Solid State }, volume = { 98 }, year = { 2018 }, pages = { 155311 } } M. Yuan, A. Hernández-Mínguez, K. Biermann, and P. V. Santos TY - JOUR AU - M. Yuan AU - A. Hernández-Mínguez AU - K. Biermann AU - P. V. Santos TI - Tunneling blockade and single-photon emission in GaAs double quantum wells JF - Physical Review B: Solid State JA - Phys. Rev. B J1 - VL - 98 SP - 155311 PY - 2018/10/12

1	Author	M. Yuan , C. Hubert , S. Rauwerdink , A. Tahraoui , B von Someren , K. Biermann , P. V. Santos
	Title	Generation of surface acoustic waves on doped semiconductor substrates
	Source	J. Phys. D , 50 , 484004 ( 2017 )
DOI : 10.1088/1361-6463/aa92a5 \| 2944 Cite : Bibtex RIS @article{ author = { M. Yuan and C. Hubert and S. Rauwerdink and A. Tahraoui and B von Someren and K. Biermann and P. V. Santos }, title = { Generation of surface acoustic waves on doped semiconductor substrates }, journal = { Journal of Physics D: Applied Physics }, volume = { 50 }, year = { 2017 }, pages = { 484004 } } M. Yuan, C. Hubert, S. Rauwerdink, A. Tahraoui, B von Someren, K. Biermann, and P. V. Santos TY - JOUR AU - M. Yuan AU - C. Hubert AU - S. Rauwerdink AU - A. Tahraoui AU - B von Someren AU - K. Biermann AU - P. V. Santos TI - Generation of surface acoustic waves on doped semiconductor substrates JF - Journal of Physics D: Applied Physics JA - J. Phys. D J1 - JPD VL - 50 SP - 484004 PY - 2017/11/08