Quantum-memory effects in the emission of quantum-dot microcavities

C. Berger, U. Huttner, M. Mootz, M. Kira, S. W. Koch, J. S. Tempel, M. Aßmann, M. Bayer, A. M. Mintairov, J. L. Merz

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


The experimentally measured input-output characteristics of optically pumped semiconductor microcavities exhibits unexpected oscillations modifying the fundamentally linear slope in the excitation power regime below lasing. A systematic microscopic analysis reproduces these oscillations, identifying them as a genuine quantum-memory effect, i.e., a photon-density correlation accumulated during the excitation. With the use of projected quantum measurements, it is shown that the input-output oscillations can be controlled and enhanced by an order of magnitude when the quantum fluctuations of the pump are adjusted.

Original languageEnglish (US)
Article number093902
JournalPhysical review letters
Issue number9
StatePublished - Aug 29 2014

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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