Measuring the complex admittance of a carbon nanotube double quantum dot

Abstract

We investigate radio-frequency (rf) reflectometry in a tunable carbon nanotube double quantum dot coupled to a resonant circuit. By measuring the in-phase and quadrature components of the reflected rf signal, we are able to determine the complex admittance of the double quantum dot as a function of the energies of the single-electron states. The measurements are found to be in good agreement with a theoretical model of the device in the incoherent limit. Besides being of fundamental interest, our results present an important step forward towards non-invasive charge and spin state readout in carbon nanotube quantum dots.

4 pages, 3 figures

References in corpus (7)

• Coupling of Spin and Orbital Motion of Electrons in Carbon Nanotubes
• Coupling a quantum dot, fermionic leads and a microwave cavity on-chip
• Molecular states in carbon nanotube double quantum dots
• Mesoscopic admittance of a double quantum dot
• All-Optical Manipulation of Electron Spins in Carbon-Nanotube Quantum Dots
• Impedance of the single electron transistor at radio-frequencies
• Highly sensitive and broadband carbon nanotube radio-frequency single-electron transistor

Cited by in corpus (48)

• Dispersive Readout of a Few-Electron Double Quantum Dot with Fast rf Gate-Sensors
• Superconductor-semiconductor hybrid cavity quantum electrodynamics
• A high-sensitivity gate-based charge sensor in silicon
• Rapid high-fidelity gate-based spin read-out in silicon
• Probing quantum devices with radio-frequency reflectometry
• A Coherent RC Circuit
• Quantum and Tunnelling Capacitance in Charge and Spin Qubits
• Optomechanical-like coupling between superconducting resonators
• Dispersively detected Pauli Spin-Blockade in a Silicon Nanowire Field-Effect Transistor
• Radio-frequency capacitive gate-based sensing
• Cavity QED with hybrid nanocircuits: from atomic-like physics to condensed matter phenomena
• A Radio Frequency Charge Parity Meter
• Sensitive radio-frequency measurements of a quantum dot by tuning to perfect impedance matching
• Clean carbon nanotubes coupled to superconducting impedance-matching circuits
• Dynamic thermoelectric and heat transport in mesoscopic capacitors
• Radio frequency charge sensing in InAs nanowire double quantum dots
• Charge dynamics and spin blockade in a hybrid double quantum dot in silicon
• Primary thermometry of a single reservoir using cyclic electron tunneling in a CMOS transistor
• Quantum state readout of individual quantum dots by electrostatic force detection
• Rapid microwave-only characterization and readout of quantum dots using multiplexed gigahertz-frequency resonators
• Quantum Photovoltaic Effect in Double Quantum Dots
• Fermi liquid approach to the quantum RC circuit: renormalization-group analysis of the Anderson and Coulomb blockade models
• Radio frequency reflectometry and charge sensing of a precision placed donor in silicon
• Radio-frequency reflectometry of a quantum dot using an ultra-low-noise SQUID amplifier
• Small-signal equivalent circuit for double quantum dots at low-frequencies
• Conditional dispersive readout of a CMOS quantum dot via an integrated transistor circuit
• Microwave spectroscopy of a carbon nanotube charge qubit
• Quantized Charge Pumping through a Carbon Nanotube Double Quantum Dot
• Probing dynamics of Majorana fermions in quantum impurity systems
• Dispersive sensing of charge states in a bilayer graphene quantum dot
• Non-galvanic calibration and operation of a quantum dot thermometer
• A quantum dot-based frequency multiplier
• Splitting a single Cooper-pair with microwave light
• Non-equilibrium quantum transport through a dissipative resonant level
• Unravelling Quantum Dot Array Simulators via Singlet-Triplet Measurements
• Charge-sensing of a Ge/Si core/shell nanowire double quantum dot using a high-impedance superconducting resonator
• Quantum Dot Source-Drain Transport Response at Microwave Frequencies
• RF Reflectometry for Readout of Charge Transition in a Physically Defined PMOS Silicon Quantum Dot
• Theory of multi-dimensional quantum capacitance and its application to spin and charge discrimination in quantum-dot arrays
• Charge relaxation resistance in the cotunneling regime of multi-channel Coulomb blockade: Violation of Korringa-Shiba relation
• Dynamical charge susceptibility in nonequilibrium double quantum dots
• Series expansion of the quantum admittance in mesoscopic systems
• Out-of-equilibrium fluctuation-dissipation relations verified by the electrical and thermoelectrical ac-conductances in a quantum dot
• Radio-frequency characterization of a supercurrent transistor made from a carbon nanotube
• Dynamical Magnetic and Nuclear Polarization in Complex Spin Systems: Semi-magnetic II-VI Quantum Dots
• Dispersive Gate Sensing the Quantum Capacitance of a Point Contact
• Radio-frequency capacitance spectroscopy of metallic nanoparticles
• Exact calculation of current correlations and admittance in the fractional quantum Hall regime