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Two are better than one

Two-level quantum systems are routinely excited by resonant pump beams. Experiments now show resonant excitation through dichromatic, detuned pumps — providing a coherent control technique that will also aid single-photon emission from solid-state devices.

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Fig. 1: Resonance fluorescence in a quantum dot microcavity.


  1. Mollow, B. R. Phys. Rev. 188, 1969–1975 (1969).

    Article  ADS  Google Scholar 

  2. Jaynes, E. T. & Cummings, F. W. Proc. IEEE 51, 89–109 (1963).

    Article  Google Scholar 

  3. Gibbs, H. M. Phys. Rev. Lett. 29, 459–462 (1972).

    Article  ADS  Google Scholar 

  4. He, Y.-M. et al. Nat. Phys. (2019).

  5. Kimble, H. J., Dagenais, M. & Mandel, L. Phys. Rev. Lett. 39, 691–695 (1977).

    Article  ADS  Google Scholar 

  6. Höffges, J. T., Baldauf, H. W., Lange, W. & Walther, H. J. Mod. Opt. 44, 1999–2010 (1997).

    Article  ADS  Google Scholar 

  7. Wrigge, G. et al. Nat. Phys. 4, 60–66 (2008).

    Article  Google Scholar 

  8. Muller, A. et al. Phys. Rev. Lett. 99, 187402 (2007).

    Article  ADS  Google Scholar 

  9. Astafiev, O. et al. Science 327, 840–843 (2010).

    Article  ADS  Google Scholar 

  10. Senellart, P., Solomon, G. & White, A. Nat. Nanotechnol. 12, 1026–1039 (2017).

    Article  ADS  Google Scholar 

Download references

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Correspondence to Glenn S. Solomon.

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Solomon, G.S. Two are better than one. Nat. Phys. 15, 882–883 (2019).

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