5 papers
Spectroscopy With Intelligent Feature Tracking for automated characterization of excited-state structure in semiconductor quantum dot devices
A. R. Huffman, Daniel Schug, Merritt Losert +6
The characterization of excited-state structure in semiconductor quantum dot (QD) devices is an important component of tuning them for spin-qubit operation. We present Spectroscopy…
Individually tunable Si/SiGe quantum dot operating voltages via gate-biased illumination
Jared Benson, Sanghyeok Park, Owen M. Eskandari +6
Semiconductor quantum dot qubits often require very different voltages on each gate to bring them to a correct operating point. Here, we present a method by which one can controlla…
Large quantum dot energy level shifts in anomalous photon-assisted tunneling
Jared Benson, C. E. Sturner, A. R. Huffman +12
Orbital energy splittings are important quantum dot parameters for the operation of hole spin qubits. They are known to depend on the lateral confinement of the quantum dots. Howev…
Fast high-fidelity baseband reset of a latched state for quantum dot qubit readout
Piotr Marciniec, M. A. Wolfe, Tyler Kovach +9
A common method for reading out the state of a spin qubit is by latching one logical qubit state, either or , onto a different, metastable charge state. Such…
Single-shot latched readout of a quantum dot qubit using barrier gate pulsing
Sanghyeok Park, Jared Benson, J. Corrigan +4
Latching techniques are widely used to enhance readout of qubits. These methods require precise tuning of multiple tunnel rates, which can be challenging to achieve under realistic…