Dynamics and Resonance Fluorescence from a Superconducting Artificial Atom Doubly Driven by Quantized and Classical Fields

  1. Xinhui Ruan,
  2. Jia-Heng Wang,
  3. Dong He,
  4. Pengtao Song,
  5. Shengyong Li,
  6. Qianchuan Zhao,
  7. L.M. Kuang,
  8. Jaw-Shen Tsai,
  9. Chang-Ling Zou,
  10. Jing Zhang,
  11. Dongning Zheng,
  12. O. V. Astafiev,
  13. Yu-xi Liu,
  14. and Zhihui Peng
We report an experimental demonstration of resonance fluorescence in a two-level superconducting artificial atom under two driving fields coupled to a detuned cavity. One of the fields

Evolution of coherent waves driving a single artificial atom

  1. A. V. Vasenin,
  2. Sh. V. Kadyrmetov,
  3. A. N. Bolgar,
  4. A.Yu. Dmitriev,
  5. and O. V. Astafiev
An electromagnetic wave propagating through a waveguide with a strongly coupled superconducting artificial two-level atom exhibits an evolving superposition with the atom. The Rabi

Photon transport in a Bose-Hubbard chain of superconducting artificial atoms

  1. G.P. Fedorov,
  2. S. Remizov,
  3. D. Shapiro,
  4. V. Pogosov,
  5. I.A. Rodionov,
  6. O. V. Astafiev,
  7. and A. V. Ustinov
We demonstrate non-equilibrium steady-state photon transport through a chain of five coupled artificial atoms simulating the driven-dissipative Bose-Hubbard model. Using transmission

Single-atom maser with engineered circuit for population inversion

  1. A.A. Sokolova,
  2. G.P. Fedorov,
  3. E.V. Il'ichev,
  4. and O. V. Astafiev
We present a blueprint for a maser with a single three-level artificial atom. The artificial atom is a superconducting quantum system of a transmon layout coupled to two resonators.

Light-dressing of a diatomic superconducting artificial molecule

  1. G.P. Fedorov,
  2. V.B. Yursa,
  3. A. Efimov,
  4. K. Shiianov,
  5. A.Yu. Dmitriev,
  6. I.A. Rodionov,
  7. A.A. Dobronosova,
  8. D.O. Moskalev,
  9. A.A. Pischimova,
  10. and O. V. Astafiev
In this work, we irradiate a superconducting artificial molecule composed of two magnetic-flux-tunable transmons with microwave light while monitoring its state via joint dispersive

Tunable Microwave Single-photon Source Based on Transmon Qubit with High Efficiency

  1. Yu Zhou,
  2. Zhihui Peng,
  3. Yuta Horiuchi,
  4. O. V. Astafiev,
  5. and J. S. Tsai
Single-photon sources are of great interest because they are key elements in different promising applications of quantum technologies. Here we demonstrate a highly efficient tunable

Probing the statistics of coherent states by continuous wave mixing on a single artificial atom

  1. A.Yu. Dmitriev,
  2. R. Shaikhaidarov,
  3. T. Hönigl-Decrinis,
  4. S. E. De Graaf,
  5. V.N. Antonov,
  6. and O. V. Astafiev
We study four- and higher-order wave mixing of continuous coherent waves on a single superconducting artificial atom. Narrow side peaks of different orders of nonlinearity resulting

Experimental demonstration of a two-dimensional phonon cavity in the quantum regime

  1. A. N. Bolgar,
  2. J. I. Zotova,
  3. D. D. Kirichenko,
  4. I. S. Besedin,
  5. A. V. Semenov,
  6. R. S. Shaikhaidarov,
  7. and O. V. Astafiev
The quantum regime in acoustic systems is a focus of recent fundamental research in the new field of Quantum Acoustodynamics (QAD). Systems based on surface acoustic waves having an

Hybrid rf SQUID qubit based on high kinetic inductance

  1. J.T. Peltonen,
  2. P. C. J. J. Coumou,
  3. Z.H. Peng,
  4. T. M. Klapwijk,
  5. J. S. Tsai,
  6. and O. V. Astafiev
We report development and microwave characterization of rf SQUID (Superconducting QUantum Interference Device) qubits, consisting of an aluminium-based Josephson junction embedded in

Coherent dynamics and decoherence in a superconducting weak link

  1. J.T. Peltonen,
  2. Z.H. Peng,
  3. Yu. P. Korneeva,
  4. B. M. Voronov,
  5. A. A. Korneev,
  6. A. V. Semenov,
  7. G. N. Gol'tsman,
  8. J. S. Tsai,
  9. and O. V. Astafiev
We demonstrate coherent dynamics of quantized magnetic fluxes in a superconducting loop with a weak link – a nanobridge patterned from the same thin NbN film as the loop. The