Enhancing quantum transduction via long-range waveguide-mediated interactions between quantum emitters

TY - JOUR

T1 - Enhancing quantum transduction via long-range waveguide-mediated interactions between quantum emitters

AU - Elfving, Vincent Emanuel

AU - Das, Sumanta Kumar

AU - Sørensen, Anders Søndberg

PY - 2019/11/20

Y1 - 2019/11/20

N2 - Efficient transduction of electromagnetic signals between different frequency scales is an essential ingredient for modern communication technologies as well as for the emergent field of quantum information processing. Recent advances in waveguide photonics have enabled a breakthrough in light-matter coupling, where individual two-level emitters are strongly coupled to individual photons. Here we propose a scheme that exploits this coupling to boost the performance of transducers between low-frequency signals and optical fields operating at the level of individual photons. Specifically, we demonstrate how to engineer the interaction between quantum dots in waveguides to enable efficient transduction of electric fields coupled to quantum dots. Owing to the scalability and integrability of the solid-state platform, our transducer can potentially become a key building block of a quantum internet node. To demonstrate this, we show how it can be used as a coherent quantum interface between optical photons and a two-level system like a superconducting qubit.

AB - Efficient transduction of electromagnetic signals between different frequency scales is an essential ingredient for modern communication technologies as well as for the emergent field of quantum information processing. Recent advances in waveguide photonics have enabled a breakthrough in light-matter coupling, where individual two-level emitters are strongly coupled to individual photons. Here we propose a scheme that exploits this coupling to boost the performance of transducers between low-frequency signals and optical fields operating at the level of individual photons. Specifically, we demonstrate how to engineer the interaction between quantum dots in waveguides to enable efficient transduction of electric fields coupled to quantum dots. Owing to the scalability and integrability of the solid-state platform, our transducer can potentially become a key building block of a quantum internet node. To demonstrate this, we show how it can be used as a coherent quantum interface between optical photons and a two-level system like a superconducting qubit.

U2 - 10.1103/PhysRevA.100.053843

DO - 10.1103/PhysRevA.100.053843

M3 - Journal article

SN - 2469-9926

VL - 100

JO - Physical Review A

JF - Physical Review A

IS - 5

M1 - 053843

ER -