15 papers
A Degenerate Singlet-Triplet Qubit with All-Electrical Orthogonal Control
Phuong X. Nguyen, Konstantinos Tsoukalas, Jann H. Ungerer +8
The paper demonstrates an all‑electrical method to achieve orthogonal control of a degenerate singlet‑triplet qubit formed by two hole spins in a germanium double quantum dot, enab…
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…
Distributing entanglement between distant semiconductor qubit registers using a shared-control shuttling link
Zarije Ademi, Marion Bassi, Cécile X. Yu +8
Semiconductor quantum processors have potential to scale to modular quantum computers, in which qubit registers are coupled by quantum links, enabling high connectivity and space f…
Automated electrostatic characterization of quantum dot devices in single- and bilayer heterostructures
Merritt P. R. Losert, Dario Denora, Barnaby van Straaten +6
As quantum dot (QD)-based spin qubits advance toward larger, more complex device architectures, rapid, automated device characterization and data analysis tools become critical. Th…
Towards autonomous time-calibration of large quantum-dot devices: Detection, real-time feedback, and noise spectroscopy
Anantha S. Rao, Barnaby van Straaten, Valentin John +8
The performance and scalability of semiconductor quantum-dot (QD) qubits are limited by electrostatic drift and charge noise that shift operating points and destabilize qubit param…
A Three-Dimensional Array of Quantum Dots
Hanifa Tidjani, Dario Denora, Michael Chan +6
Quantum dots can confine single electrons or holes to define spin qubits that can be operated with high fidelity. Experimental work has progressed from linear to two-dimensional ar…