Delocalized single-photon Dicke states and the Leggett-Garg inequality in solid state systems

Guang Yin Chen, Neill Lambert, Che Ming Li, Yueh Nan Chen, Franco Nori

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13 Citations (Scopus)


We show how to realize a single-photon Dicke state in a large one-dimensional array of two-level systems, and discuss how to test its quantum properties. The realization of single-photon Dicke states relies on the cooperative nature of the interaction between a field reservoir and an array of two-level-emitters. The resulting dynamics of the delocalized state can display Rabi-like oscillations when the number of two-level emitters exceeds several hundred. In this case, the large array of emitters is essentially behaving like a mirror-less cavity. We outline how this might be realized using a multiple-quantum-well structure or a dc-SQUID array coupled to a transmission line, and discuss how the quantum nature of these oscillations could be tested with an extension of the Leggett-Garg inequality.

Original languageEnglish
Article number869
JournalScientific reports
Publication statusPublished - 2012

All Science Journal Classification (ASJC) codes

  • General

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