AC Josephson effect and resonant Cooper pair tunneling emission of a Cooper Pair Transistor

Abstract

We measure the high-frequency emission of a single Cooper pair transistor(SCPT) in the regime where transport is only due to tunneling of Cooper pairs. This is achieved by coupling on-chip the SCPT to a superconductor-insulator-superconductor junction and by measuring the photon assisted tunneling current of quasiparticles across the junction. This technique allows a direct detection of the AC Josephson effect of the SCPT and provides evidence of Landau-Zener transitions for proper gate voltage. The emission in the regime of resonant Cooper pair tunneling is also investigated. It is interpreted in terms of transitions between charge states coupled by the Josephson effect.

arXiv commentRevtex4, 5 pages, 4 figures, final version

References in corpus (5)

• Decoherence in a superconducting quantum bit circuit
• Detection of Quantum Noise from an Electrically-Driven Two-Level System
• Emission and absorption asymmetry in the quantum noise of a Josephson junction
• Effect of zero point phase fluctuations on Josephson tunneling
• Cooper pair cotunneling in single charge transistors with dissipative electromagnetic environment

Cited by in corpus (33)

• AC Josephson effect in finite-length nanowire junctions with Majorana modes
• Josephson radiation from gapless Andreev bound states in HgTe-based topological junctions
• Majorana nanowires for topological quantum computation
• Dynamics of Majorana States in a Topological Josephson Junction
• Missing Shapiro steps in topologically trivial Josephson Junction on InAs quantum well
• Ac Josephson Effect in Topological Josephson Junctions
• Fractional Josephson Effect with and without Majorana Zero Modes
• Detecting topological superconductivity using low-frequency doubled Shapiro steps
• Microwave signature of robust topological Andreev-level crossings in superconducting proximitized crystalline Bi nanowires
• Cooper-pair transistor as a minimal topological quantum circuit
• Brownian refrigeration by hybrid tunnel junctions
• Microwave studies of the fractional Josephson effect in HgTe-based Josephson junctions
• Finite frequency noise in a normal metal - topological superconductor junction
• Evolution of $4\pi$-periodic Supercurrent in the Presence of In-plane Magnetic Field
• Charge transport through ultrasmall single and double Josephson junctions coupled to resonant modes of the electromagnetic environment
• Quasiparticle trapping at vortices producing Josephson supercurrent enhancement
• Fractional AC Josephson effect in a topological insulator proximitized by a self-formed superconductor
• Effect of decoherence on resonant Cooper-pair tunneling in a voltage-biased single-Cooper-pair transistor
• Broadband microwave spectroscopy of semiconductor nanowire-based Cooper-pair transistors
• Period-doubling in the phase dynamics of a shunted HgTe quantum well Josephson junction
• Quantum current noise from a Born-Markov master equation
• Josephson radiation and shot noise of a semiconductor nanowire junction
• AC Josephson effect in a gate-tunable Cd${}_3$As${}_2$ nanowire superconducting weak link
• Josephson current signature of Floquet Majorana and topological accidental zero modes in altermagnet heterostructures
• Coherent superconducting quantum pump
• Model for missing Shapiro steps due to bias-dependent resistance
• Josephson radiation in a superconductor-quantum dot-superconductor junction
• Collapse of the Josephson emission in a carbon nanotube junction in the Kondo regime
• Cooper-Pair Tunneling in Small Josephson Junction Arrays under Radio-Frequency Irradiation
• From Majorana fermions to topological quantum computation in semiconductor/superconductor heterostructures
• Photon-activated electron hopping in a single-electron trap enhanced by Josephson radiation
• Renormalization of Electromagnetic Quantities in Small Josephson Junctions
• Charge noise at Cooper-pair resonances