Gyrator operation using Josephson mixers

Abstract

Nonreciprocal microwave devices, such as circulators, are useful in routing quantum signals in quantum networks and protecting quantum systems against noise coming from the detection chain. However, commercial, cryogenic circulators, now in use, are unsuitable for scalable superconducting quantum architectures due to their appreciable size, loss, and inherent magnetic field. We report on the measurement of a key nonreciprocal element, i.e., the gyrator, which can be used to realize a circulator. Unlike state-of-the-art gyrators, which use a magneto-optic effect to induce a phase shift of $\pi$ between transmitted signals in opposite directions, our device uses the phase nonreciprocity of a Josephson-based three-wave-mixing device. By coupling two of these mixers and operating them in noiseless frequency-conversion mode, we show that the device acts as a nonreciprocal phase shifter whose phase shift is controlled by the phase difference of the microwave tones driving the mixers. Such a device could be used to realize a lossless, on-chip, superconducting circulator suitable for quantum-information-processing applications.

References in corpus (12)

• Time-reversal symmetry breaking in circuit-QED based photon lattices
• Noiseless nonreciprocity in a parametric active device
• Nonreciprocal microwave signal processing with a Field-Programmable Josephson Amplifier
• Widely tunable, non-degenerate three-wave mixing microwave device operating near the quantum limit
• Non-Poissonian Quantum Jumps of a Fluxonium Qubit due to Quasiparticle Excitations
• Non-degenerate, three-wave mixing with the Josephson ring modulator
• Graph-based analysis of nonreciprocity in coupled-mode systems
• Full coherent frequency conversion between two microwave propagating modes
• Broadband on-chip optical non-reciprocity using phase modulators
• Self impedance matched Hall-effect gyrators and circulators
• A compact design for the Josephson mixer: the lumped element circuit
• Time-multiplexed amplification in a hybrid-less and coil-less Josephson parametric converter

Cited by in corpus (13)

• Widely tunable on-chip microwave circulator for superconducting quantum circuits
• Scalable High-Performance Fluxonium Quantum Processor
• Nanobolometer with Ultralow Noise Equivalent Power
• Active protection of a superconducting qubit with an interferometric Josephson isolator
• Design of an on-chip superconducting microwave circulator with octave bandwidth
• High-fidelity qubit readout using interferometric directional Josephson devices
• Josephson parametric circulator with same-frequency signal ports, 200 MHz bandwidth, and high dynamic range
• Single-sideband modulator for frequency domain multiplexing of superconducting qubit readout
• Dissipationless Nonlinearity in Quantum Material Josephson Diodes
• Kinetic Inductance Parametric Converter
• A compact and tunable forward coupler based on high-impedance superconducting nanowires
• Circulation by microwave-induced vortex transport for signal isolation
• Nonreciprocity in microwave optomechanical circuits