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Freja T. Østfeldt on Muck Rack

Freja T. Østfeldt

As seen in: Physical Review B
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Articles

Entanglement properties of a quantum-dot biexciton cascade in a chiral nanophotonic waveguide

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By Eva M. González-Ruiz, Freja T. Østfeldt, Ravitej Uppu
| Physical Review B
Abstract We analyze the entanglement properties of deterministic path-entangled photonic states generated by coupling the emission of a quantum-dot biexciton cascade to a chiral nanophotonic waveguide, as implemented by Østfeldt et al. [PRX Quantum 3, 020363 (2022)]. We model the degree of entanglement through the concurrence of the two-photon entangled state in the presence of realistic experimental imperfections.
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On-Demand Source of Dual-Rail Photon Pairs Based on Chiral Interaction in a Nanophotonic Waveguide

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By Nils Valentin Hauff, Ying Wang, Freja T. Østfeldt, Eva M. González-Ruiz
| Physical Review B
Abstract Entanglement is the fuel of advanced quantum technology, enabling, e.g., measurement-based quantum computing and loss-tolerant encoding of quantum information. In photonics, entanglement has traditionally been generated probabilistically, requiring massive multiplexing for scaling up to many photons. An alternative approach utilizing quantum emitters in nanophotonic devices can realize deterministic generation of entangled photons.
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