Next Seminar (online)

Phonon-mediated quantum state transfer, remote entanglement and quantum erasure

Monday July 6th 2020, 10h – Online

Invited speaker:
Audrey Bienfait

ENS - Lyon

Heavily used in classical signal processing, surface acoustic waves (SAWs) have also been proposed as a means to coherently couple distant solid-state quantum systems. Several groups have already reported the coherent coupling of standing SAWs modes to superconducting qubits [1-4], opening the door to the control and detection of quantum phonon states [5]. In this seminar, I will describe our recent progress in coupling superconducting qubits to propagating SAWs. We can controllably release and capture individual itinerant photons, demonstrating that quantum state transfer as well as remote entanglement generation between superconducting qubits using phonons can be realized [6]. Going a step further, I will show how two-phonon entanglement can also be generated and used to realize a fundamental quantum optics experiment, quantum erasure [7], using phonons [8].


[1] M. V. Gustafsson, et al, Science, 346, 207-211, 2014
[2] R. Manenti, et al, Phys. Rev. B, 93, 041411, 2016 
[3] B. A. Moores, Phys. Rev. Lett., 120, 2018 
[4] A. N. Bolgar, et al, Phys. Rev. Lett., 120,  2018
[5] K. J. Satzinger, et al, Nature 563, 60-61, 2018
[6] A. Bienfait, et al, Science, 364, 368-371, 2019
[7] M. O. Scully and K. Drühl, Phys. Rev. A 25, 2208, 1982
[8] A. Bienfait et al., Phys. Rev X 10, 021055, 2020


Upcoming seminars

  • Preden Roulleau (SPEC) - TBA

  • Zaki Leghtas (LPENS) - TBA

  • Kamran Behnia (ESPCI) - TBA

  • Matthieu Delbecq (LPENS) - TBA

  • Hugues Pothier (SPEC) - TBA

  • Christophe Brun (INSP) - TBA



Past seminars 2020

  • Sebastien Toussain (UCL)

  • David Goldhaber-Gordon (Stanford)

  • Javad Shabani (NYU)

  • Olivier Maillet (Aalto)

  • Mitali Banerjee (EPFL)

  • Anais Dreau (L2C) 

  • Klaus Ensslin (ETH- Zurich) 

  • Xavier Waintal (CEA- Grenoble) 

  • Gwendal Feve (LPENS) 

  • Shuoying Yang (MPI-Halle) 

  • Yann Gallais (MPQ) 

  • Carles Altimiras (CEA - Saclay)

  • Alexandra Palacio- Morales ( LPS) 

  • Everton Arrighi (Neel Institute)