Article open access publication

Chiral quantum optics

Nature, Springer Nature, ISSN 1476-4687

Volume 541, 7638, 2017

DOI:10.1038/nature21037, Dimensions: pub.1074206893, PMID: 28128249,



  1. (1) University of Copenhagen, grid.5254.6, KU
  2. (2) Vienna Center for Quantum Science and Technology, grid.499369.8
  3. (3) Institute for Quantum Optics and Quantum Information Innsbruck, grid.475467.3
  4. (4) Institute for Theoretical Physics, University of Innsbruck, 6020, Innsbruck, Austria







Advanced photonic nanostructures are currently revolutionizing the optics and photonics that underpin applications ranging from light technology to quantum-information processing. The strong light confinement in these structures can lock the local polarization of the light to its propagation direction, leading to propagation-direction-dependent emission, scattering and absorption of photons by quantum emitters. The possibility of such a propagation-direction-dependent, or chiral, light-matter interaction is not accounted for in standard quantum optics and its recent discovery brought about the research field of chiral quantum optics. The latter offers fundamentally new functionalities and applications: it enables the assembly of non-reciprocal single-photon devices that can be operated in a quantum superposition of two or more of their operational states and the realization of deterministic spin-photon interfaces. Moreover, engineered directional photonic reservoirs could lead to the development of complex quantum networks that, for example, could simulate novel classes of quantum many-body systems.


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Times Cited: 361

Field Citation Ratio (FCR): 157.58

Relative Citation ratio (RCR): 13.64

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