Phase modulation at the few-photon level for weak-nonlinearity-based quantum computing

By V. Venkataraman, K. Saha, Alexander Gaeta. Nature Photonics, 2012

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Prospective applications of optical quantum memories (2013, background): “5 to 107 photons prepared in a separable state yielded a scaling N 3=2, well beyond the N 1 Heisenberg limit. Many other promising systems such as atoms conned in a hollow-core photonic band gap bre [121, 122], and atoms trapped in the evanescent eld around a nano-bre [123], are very attractive as t”
Colloquium: Strongly interacting photons in one-dimensional continuum (2016, methodology): “The experiment was performed with coherent states, demonstrating an average cross-Kerr phase shift of 20◦ per photon, surpassing the previous state-of-theart of 0.01◦ per photon for propagating light (Matsuda et al., 2009; Perrella et al., 2013; Venkataraman et al., 2013).”