A Bundler is a device that emits "photon-bundles", i.e., groups of photons that come in the same integer number (always two, or always five, etc., as opposed to a single-photon source that emits them one by one or other types of light where their number varies).

We theorized a mechanism to realize such a device.[1] The basic idea is discussed in some details in this blog post.


  1. Emitters of $N$-photon bundles. C. Sánchez Muñoz, E. del Valle, A. González Tudela, K. Müller, S. Lichtmannecker, M. Kaniber, C. Tejedor, J.J. Finley and F.P. Laussy in Nature Photon. 8:550 (2014). Pdf-48px.png