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arXiv · 1901.03631

Generating maximal entanglement between spectrally distinct solid-state emitters

David L. Hurst·Kristoffer B. Joanesarson·Jake Iles-Smith·Jesper Mørk·Pieter Kok
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Abstract

We show how to create maximal entanglement between spectrally distinct solid-state emitters embedded in a waveguide interferometer. By revealing the rich underlying structure of multi-photon scattering in emitters, we show that a two-photon input state can generate deterministic maximal entanglement even for emitters with significantly different transition energies and line-widths. The optimal frequency of the input is determined by two competing processes: which-path erasure and interaction strength. We find that smaller spectral overlap can be overcome with higher photon numbers, and quasi-monochromatic photons are optimal for entanglement generation. Our work provides a new methodology for solid-state entanglement generation, where the requirement for perfectly matched emitters can be relaxed in favour of optical state optimisation.

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David L. Hurst, Kristoffer B. Joanesarson, Jake Iles-Smith, Jesper Mørk, Pieter Kok. 2019-06-30. Generating maximal entanglement between spectrally distinct solid-state emitters. https://doi.org/10.1103/physrevlett.123.023603

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