543 citations · 708 across the 13 of their papers we have counts for
13 papers
Reconstructing Quantum Dot Charge Stability Diagrams with Diffusion Models
Vinicius Hernandes, Joseph Rogers, Rouven Koch +5
Efficiently characterizing quantum dot (QD) devices is a critical bottleneck when scaling quantum processors based on confined spins. Measuring high-resolution charge stability dia…
Weight-four parity checks with silicon spin qubits
Brennan Undseth, Nicola Meggiato, Yi-Hsien Wu +7
Recent advances in coherent spin shuttling have made sparse semiconductor spin qubit arrays an appealing solid-state platform to realize quantum processors. The dynamic and long-ra…
Tracking spin qubit frequency variations over 912 days
Kenji Capannelli, Brennan Undseth, Irene Fernández de Fuentes +9
Solid-state qubits are sensitive to their microscopic environment, causing the qubit properties to fluctuate on a wide range of timescales. The sub-Hz end of the spectrum is usuall…
Running a six-qubit quantum circuit on a silicon spin qubit array
I. Fernández de Fuentes, E. Raymenants, B. Undseth +9
The simplicity of encoding a qubit in the state of a single electron spin and the potential for their integration into industry-standard microchips continue to drive the field of s…
Unified evolutionary optimization for high-fidelity spin qubit operations
Sam R. Katiraee-Far, Yuta Matsumoto, Brennan Undseth +9
Developing optimal strategies to calibrate quantum processors for high-fidelity operation is one of the outstanding challenges in quantum computing today. Here, we demonstrate mult…
Baseband control of single-electron silicon spin qubits in two dimensions
Florian K. Unseld, Brennan Undseth, Eline Raymenants +9
Micromagnet-enabled electric-dipole spin resonance (EDSR) is an established method of high-fidelity single-spin control in silicon. However, the resulting architectural limitations…
Near-Term Spin-Qubit Architecture Design via Multipartite Maximally-Entangled States
Nikiforos Paraskevopoulos, Matthew Steinberg, Brennan Undseth +4
The design and benchmarking of quantum computer architectures traditionally rely on practical hardware restrictions, such as gate fidelities, control, and cooling. At the theoretic…
Data needs and challenges for quantum dot devices automation
Justyna P. Zwolak, Jacob M. Taylor, Reed W. Andrews +17
Gate-defined quantum dots are a promising candidate system for realizing scalable, coupled qubit systems and serving as a fundamental building block for quantum computers. However,…
Hotter is easier: unexpected temperature dependence of spin qubit frequencies
Brennan Undseth, Oriol Pietx-Casas, Eline Raymenants +13
As spin-based quantum processors grow in size and complexity, maintaining high fidelities and minimizing crosstalk will be essential for the successful implementation of quantum al…
Nonlinear response and crosstalk of electrically driven silicon spin qubits
Brennan Undseth, Xiao Xue, Mohammad Mehmandoost +7
Micromagnet-based electric dipole spin resonance (EDSR) offers an attractive path for the near-term scaling of dense arrays of silicon spin qubits in gate-defined quantum dots whil…
Multicore Quantum Computing
Hamza Jnane, Brennan Undseth, Zhenyu Cai +2
Any architecture for practical quantum computing must be scalable. An attractive approach is to create multiple cores, computing regions of fixed size that are well-spaced but inte…
Computing with spin qubits at the surface code error threshold
Xiao Xue, Maximilian Russ, Nodar Samkharadze +4
High-fidelity control of quantum bits is paramount for the reliable execution of quantum algorithms and for achieving fault-tolerance, the ability to correct errors faster than the…
Quantum black holes in the horizon quantum mechanics model at the Large Hadron Collider
Douglas M. Gingrich, Brennan Undseth
Quantum black hole production at the Large Hadron Collider is investigated using the horizon quantum mechanics model. This model has novel implications for how black holes might be…