• Corpus ID: 247839599

Down-conversion of a single photon as a probe of many-body localization

  title={Down-conversion of a single photon as a probe of many-body localization},
  author={Nitish Mehta and Roman V. Kuzmin and Cristiano Ciuti and Vladimir E Manucharyan},
Decay of a particle into more particles is a ubiquitous phenomenon to interacting quantum systems, taking place in colliders, nuclear reactors, or solids. In a non-linear medium, even a single photon would decay by down-converting (splitting) into lower-frequency photons with the same total energy 1 , at a rate given by Fermi’s Golden Rule 2 . However, the energy conservation condition cannot be matched precisely if the medium is finite and only supports quantized modes. In this case, the photon… 

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