On-demand microwave generator of shaped single photons

Abstract

We demonstrate the full functionality of a circuit that generates single microwave photons on demand, with a wave packet that can be modulated with a near-arbitrary shape. We achieve such a high tunability by coupling a superconducting qubit near the end of a semi-infinite transmission line. A dc superconducting quantum interference device shunts the line to ground and is employed to modify the spatial dependence of the electromagnetic mode structure in the transmission line. This control allows us to couple and decouple the qubit from the line, shaping its emission rate on fast time scales. Our decoupling scheme is applicable to all types of superconducting qubits and other solid-state systems and can be generalized to multiple qubits as well as to resonators.

10 pages, 7 figures. Published version

References in corpus (11)

• The Quantum Internet
• Charge insensitive qubit design derived from the Cooper pair box
• QuTiP 2: A Python framework for the dynamics of open quantum systems
• Photon-mediated interactions between distant artificial atoms
• Generating Single Microwave Photons in a Circuit
• Strong Coupling of a Single Electron in Silicon to a Microwave Photon
• Measurements of the Correlation Function of a Microwave Frequency Single Photon Source
• Strong Coupling Cavity QED with Gate-Defined Double Quantum Dots Enabled by a High Impedance Resonator
• Quantum State Transfer via Noisy Photonic and Phononic Waveguides
• Intracity quantum communication via thermal microwave networks
• Correlations and entanglement of microwave photons emitted in a cascade decay