+++ONLINE COLLOQUIUM+++ Microwave quantum optics in superconducting circuits (Prof. Dr. Yasunobu Nakamura)

  • Datum: 15.06.2021
  • Uhrzeit: 11:00
  • Vortragende(r): Prof. Yasunobu Nakamura
  • Research Center for Advanced Science and Technology (RCAST), University of Tokyo, Japan
Superconducting quantum circuits provide a versatile platform for cavity and waveguide quantum electrodynamics.

Qubits as an artificial atom and microwave transmission lines as a waveguide interact strongly with and without the help of resonators, through which we control and measure propagating modes of microwaves at the single-photon level [1,2]. We also generate and characterize non-classical states of multiplexed microwave pulse modes such as a time-bin qubit [3] and a cluster state [4]. For constructing a fully-connected 1D quantum network, we propose a scheme for directional emission and absorption of a microwave pulse in a waveguide [5].

[1] K. Inomata et al., Nature Commun. 7, 12303 (2016).
[2] S. Kono et al., Nature Physics 14, 546 (2018).
[3] J. Ilves et al., npj Quantum Information 6, 34 (2020).
[4] Y. Sunada et al., APS March Meeting, A28.00006 (2021).
[5] N. Gheeraert, S. Kono, and Y. Nakamura, Phys. Rev. A 102, 053720 (2020).

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