61 citations · 201 across the 9 of their papers we have counts for
5 papers · 1 filter
Hyperfine and spin-orbit coupling effects on decay of spin-valley states in a carbon nanotube
T. Pei, A. Pályi, M. Mergenthaler +5
The decay of spin-valley states is studied in a suspended carbon nanotube double quantum dot via leakage current in Pauli blockade and via dephasing and decoherence of a qubit. Fro…
Resonant optomechanics with a vibrating carbon nanotube and a radio-frequency cavity
Natalia Ares, Tian Pei, Aquila Mavalankar +4
In an optomechanical setup, the coupling between cavity and resonator can be increased by tuning them to the same frequency. We study this interaction between a carbon nanotube res…
Photon-assisted tunneling and charge dephasing in a carbon nanotube double quantum dot
Aquila Mavalankar, Tian Pei, Erik M. Gauger +3
We report microwave-driven photon-assisted tunneling in a suspended carbon nanotube double quantum dot. From the resonant linewidth at a temperature of 13 mK, the charge dephasing…
Sensitive radio-frequency measurements of a quantum dot by tuning to perfect impedance matching
N. Ares, F. J. Schupp, A. Mavalankar +9
Electrical readout of spin qubits requires fast and sensitive measurements, but these are hindered by poor impedance matching to the device. We demonstrate perfect impedance matchi…
A non-invasive electron thermometer based on charge sensing of a quantum dot
A. Mavalankar, S. J. Chorley, J. Griffiths +4
We present a thermometry scheme to extract the temperature of a 2DEG by monitoring the charge occupation of a weakly tunnel-coupled 'thermometer' quantum dot using a quantum point…