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arXiv · 2209.12852

Perfect splitting of two-photon pulses

Mads Middelhede Lund·Fan Yang·Klaus Mølmer
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Abstract

We employ a cascaded system approach to numerically simulate the interaction of photon pulses with a two-level scatterer in a chiral waveguide QED setup. It is possible to expand any pure state of two photons as a superposition of orthogonal two-photon pulses. We show that the scattering of a two-photon pulse of suitable duration may lead to an entangled output state between predominately two equally populated two-photon states. In a complementary wave packet basis, this state is a product state of two orthogonal single photon wave packets. The time reversal of the above scattering process allows for a perfect combination of distinguishable single-photon wave packet into a single-mode pulse carrying two identical photons.

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Mads Middelhede Lund, Fan Yang, Klaus Mølmer. 2022-09-26. Perfect splitting of two-photon pulses. https://arxiv.org/abs/2209.12852

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