You JB, Yang WL, Chen G, Xu ZY, Wu L, Png CE, Feng M. Optical signatures of Mott-superfluid transition in nitrogen-vacancy centers coupled to photonic crystal cavities.
OPTICS LETTERS 2019;
44:2081-2084. [PMID:
30985816 DOI:
10.1364/ol.44.002081]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 03/18/2019] [Indexed: 06/09/2023]
Abstract
Detecting optical signatures of quantum phase transitions (QPT) in driven-dissipative systems constitutes a new frontier for many-body physics. Here we propose a practical idea to characterize the extensively studied phenomenon of photonic QPT, based on a many-body system composed of nitrogen-vacancy centers embedded individually in photonic crystal cavities, by detecting the critical behaviors of mean photon number, photon fluctuation, photon correlation, and emitted spectrum. Our results bridge these observables to the distinct optical signatures in different quantum phases and serve as good indicators and invaluable tools for studying dynamical properties of dissipative QPT.
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