Perfect splitting of two-photon pulses

• URL: http://arxiv.org/abs/2209.12852v1
• Date: Mon, 26 Sep 2022 17:06:56 GMT
• Title: Perfect splitting of two-photon pulses
• Authors: Mads Middelhede Lund, Fan Yang and Klaus M{\o}lmer
• Abstract summary: We numerically simulate the interaction of photon pulses with a two-level scatterer in a chiral waveguide QED setup. We show that the scattering of a two-photon pulse of suitable duration may lead to an entangled output state between two equally populated two-photon states.
• Score: 3.803244458097104
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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