aqora

Coupling a quantum dot in an InSb nanowire to a superconducting resonator

Giles Allison, Marcus Larsson, Yasushi Kanai +5 more

Jan 1, 20130 citations

Coupling a single charge in a nanowire double quantum dot to a high-Q superconducting microwave resonator

Karl D. Petersson, Schroer, Louis W. McFaul +2 more

Bulletin of the American Physical SocietyFeb 29, 20120 citations

A coherent all-electrical interface between polar molecules and mesoscopic superconducting resonators

Axel André, David P. DeMille, John M. Doyle +5 more

Nature PhysicsAug 27, 2006416 citations

Low-loss high-impedance circuit for quantum transduction between optical and microwave photons

Yuta Tsuchimoto, Martin Kroner

Abstract Quantum transducers between microwave and optical photons are essential for long-distance quantum networks based on superconducting qubits. An optically active self-assembled quantum dot molecule (QDM) is an attractive platform for the implementation of a quantum transducer because an exciton in a QDM can be efficiently coupled to both optical and microwave fields at the single-photon level. Recently, the transduction between microwave and optical photons has been demonstrated with a QDM integrated with a superconducting resonator. In this paper, we present a design of a QD-high impedance resonator device with a low microwave loss and an expected large single-microwave photon coupling strength of 100s of MHz. We integrate self-assembled QDs onto a high-impedance superconducting resonator using a transfer printing technique and demonstrate a low-microwave loss rate of 1.8 MHz and gate tunability of the QDs. The corresponding microwave photon decay time of 88 ns is longer than the time necessary for the optical-microwave transduction process as well as the transmon-resonator swap operation time. This feature will facilitate efficient quantum transduction between an optical and microwave qubit.Abstract Quantum transducers between microwave and optical photons are essential for long-distance quantum networks based on superconducting qubits. An optically active self-assembled quantum dot molecule (QDM) is an attractive platform for the implementation of a quantum transducer because an exciton in a QDM can be efficiently coupled to both optical and microwave fields at the single-photon level. Recently, the transduction between microwave and optical photons has been demonstrated with a QDM integrated with a superconducting resonator. In this paper, we present a design of a QD-high impedance resonator device with a low microwave loss and an expected large single-microwave photon coupling strength of 100s of MHz. We integrate self-assembled QDs onto a high-impedance superconducting resonator using a transfer printing technique and demonstrate a low-microwave loss rate of 1.8 MHz and gate tunability of the QDs. The corresponding microwave photon decay time of 88 ns is longer than the time necessary for the optical-microwave transduction process as well as the transmon-resonator swap operation time. This feature will facilitate efficient quantum transduction between an optical and microwave qubit.

arXiv:2112.05089Materials for Quantum TechnologyMar 4, 20222 citations

Large-bandwidth Transduction Between an Optical Single Quantum Dot Molecule and a Superconducting Resonator

Yuta Tsuchimoto, Zhe Sun, Emre Togan +6 more

Quantum transduction between the microwave and optical domains is an outstanding challenge for long-distance quantum networks based on superconducting qubits.For all transducers realized to date, the generally weak light-matter coupling does not allow high transduction efficiency, large bandwidth, and low noise simultaneously.Here we show that a large electric dipole moment of an exciton in an optically active self-assembled quantum dot molecule (QDM) efficiently couples to a microwave resonator field at the single-photon level.This allows for transduction between microwave and optical photons without coherent optical pump fields to enhance the interaction.With an on-chip device, we demonstrate a sizeable single-photon coupling strength of 16 MHz.Thanks to the fast exciton decay in the QDM, the transduction bandwidth between an optical and microwave resonator photon reaches several 100 s of MHz.We also show that the transduction process via the QDM is fully coherent within the measurement error range.Quantum transduction between the microwave and optical domains is an outstanding challenge for long-distance quantum networks based on superconducting qubits.For all transducers realized to date, the generally weak light-matter coupling does not allow high transduction efficiency, large bandwidth, and low noise simultaneously.Here we show that a large electric dipole moment of an exciton in an optically active self-assembled quantum dot molecule (QDM) efficiently couples to a microwave resonator field at the single-photon level.This allows for transduction between microwave and optical photons without coherent optical pump fields to enhance the interaction.With an on-chip device, we demonstrate a sizeable single-photon coupling strength of 16 MHz.Thanks to the fast exciton decay in the QDM, the transduction bandwidth between an optical and microwave resonator photon reaches several 100 s of MHz.We also show that the transduction process via the QDM is fully coherent within the measurement error range.

arXiv:2110.03230PRX QuantumSep 9, 202210 citations

Quantum-dot–insulator–superconductor junctions coupled to a microwave resonator

Vasilii Sevriuk, Matti Silveri, Mikko Möttönen

Bulletin of the American Physical SocietyMar 4, 20200 citations

High-Speed Quantum Interface with a Quantum Dot Molecule Coupled to a Superconducting Resonator

Related papers

High-Speed Quantum Interface with a Quantum Dot Molecule Coupled to a Superconducting Resonator

Related papers