Narrow band microwave radiation from a biased single-Cooper-pair transistor

Abstract

We show that a single-Cooper-pair transistor (SCPT) electrometer emits narrow-band microwave radiation when biased in its sub-gap region. Photo activation of quasiparticle tunneling in a nearby SCPT is used to spectroscopically detect this radiation, in a configuration that closely mimics a qubit-electrometer integrated circuit. We identify emission lines due to Josephson radiation and radiative transport processes in the electrometer, and argue that a dissipative superconducting electrometer can severely disrupt the system it attempts to measure.

arXiv comment4 pages, 3 figures

References in corpus (17)

• Coherent control of macroscopic quantum states in a single-Cooper-pair box
• Manipulating the Quantum State of an Electrical Circuit
• Approaching Unit Visibility for Control of a Superconducting Qubit with Dispersive Readout
• Nonequilibrium quasiparticles and $2e$ periodicity in single-Cooper-pair transistors
• Detection of Quantum Noise from an Electrically-Driven Two-Level System
• Dispersive measurements of superconducting qubit coherence with a fast, latching readout
• Quantum nano-electromechanics with electrons, quasiparticles and Cooper pairs: effective bath descriptions and strong feedback effects
• Resonant Cooper Pair Tunneling: Quantum Noise and Measurement Characteristics
• Poisson transition rates from time-domain measurements with finite bandwidth
• Time-domain measurements of quasiparticle tunneling rates in a single-Cooper-pair transistor
• Kinetics of the superconducting charge qubit in the presence of a quasiparticle
• The Inductive Single-Electron Transistor (L-SET)
• Effect of Measurement on the Periodicity of the Coulomb Staircase of a Superconducting Box
• 3e tunneling processes in a superconducting single-electron tunneling transistor
• Charge Transport in Voltage-Biased Superconducting Single-Electron Transistors
• Controlled single electron transfer between Si:P dots
• Characterization of a Differential Radio-Frequency Single-Electron Transistor

Cited by in corpus (8)

• Number fluctuations of sparse quasiparticles in a superconductor
• Kinetics of non-equilibrium quasiparticle tunneling in superconducting charge qubits
• Using materials for quasiparticle engineering
• Enhanced current noise correlations in a Coulomb-Majorana device
• Detecting parity effect in a superconducting device in the presence of parity switches
• A self-calibrating superconducting pair-breaking detector
• Recovery dynamics of a gap-engineered transmon after a quasiparticle burst
• Charge noise at Cooper-pair resonances