From the 2 of 6 linked papers with an AI index.
6 papers
Depth-Resolved Lattice Distortions in a Silicon-Germanium Qubit Host
Jonathan C. Marcks, E. S. Joseph, J. Reily +6
The authors use X‑ray nano‑structural mapping to resolve lattice distortions and strain in a Si/SiGe chip used for quantum dot qubits, revealing how growth‑induced defects propagat…
Minute-long quantum coherence enabled by electrical depletion of magnetic noise
Cyrus Zeledon, Benjamin Pingault, Jonathan C. Marcks +13
The paper demonstrates that applying an electrical bias to an isotopically purified SiC p‑i‑n diode can deplete magnetic noise, extending the coherence and relaxation times of embe…
Complete measurement of tunnel- and valley-coupling parameters in a silicon double quantum dot
Daniel J. King, Minyoung Kim, J. Reily +4
Tunneling is essential in the initialization, measurement, and control of quantum dot qubits. In silicon, such tunneling connects not only the qubit states but also valley minima i…
Direct measurement of the energy spectrum of a quantum dot qubit
J. Reily, Daniel J. King, Jonathan C. Marcks +8
The mapping between gate voltages applied to a double quantum dot, and the parameters of a Hubbard-like Hamiltonian, is of utmost importance for understanding and operating spin qu…
Valley Splitting Correlations Across a Silicon Quantum Well Containing Germanium
Jonathan C. Marcks, Emily Eagen, Emma C. Brann +12
Quantum dots in SiGe/Si/SiGe heterostructures host coherent electron spin qubits, which are promising for future quantum computers. The silicon quantum well hosts near-degenerate e…
Nuclear Spin Engineering for Quantum Information Science
Jonathan C. Marcks, Benjamin Pingault, Jiefei Zhang +3
Semiconductors are the backbone of modern technology, garnering decades of investment in high quality materials and devices. Electron spin systems in semiconductors, including atom…