Real Time Electron Tunneling and Pulse Spectroscopy in Carbon Nanotube Quantum Dots

Abstract

We investigate a Quantum Dot (QD) in a Carbon Nanotube (CNT) in the regime where the QD is nearly isolated from the leads. An aluminum single electron transistor (SET) serves as a charge detector for the QD. We precisely measure and tune the tunnel rates into the QD in the range between 1 kHz and 1 Hz, using both pulse spectroscopy and real - time charge detection and measure the excitation spectrum of the isolated QD.

12 pages, 5 figures

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Cited by in corpus (11)

• Quantum transport in carbon nanotubes
• A Graphene Quantum Dot with a Single Electron Transistor as Integrated Charge Sensor
• Cooling carbon nanotubes to the phononic ground state with constant electron current
• Carbon nanotubes for coherent spintronic devices
• Ground-state cooling the vibrations of suspended carbon-nanotubes with constant electron current
• Graphene-based charge sensors
• Transport in coupled graphene-nanotube quantum devices
• Identifying single electron charge sensor events using wavelet edge detection
• A high-sensitivity charge sensor for silicon qubits above one kelvin
• A Non-Demolition Single Spin Meter
• Back action of graphene charge detectors on graphene and carbon nanotube quantum dots