5 citations · 9 across the 5 of their papers we have counts for
7 papers
Singlet-only always-on gapless exchange (SAGE) spin qubits: Charge noise effects and two-qubit gates
Nathan L. Foulk, Katharina Laubscher, Silas Hoffman +1
Singlet-only always-on gapless exchange (SAGE) spin qubits are an alternative type of exchange-only (EO) qubits that encode a single qubit in the spins of four electrons located in…
Singlet-only Always-on Gapless Exchange Qubits with Baseband Control
Nathan L. Foulk, Silas Hoffman, Katharina Laubscher +1
We propose a singlet-only always-on gapless exchange (SAGE) spin qubit that encodes a single qubit in the spins of four electrons while allowing universal baseband control. While c…
Theory of charge stability diagrams in coupled quantum dot qubits
Nathan L. Foulk, Sankar Das Sarma
We predict large regions of the charge stability diagram using a multi-band and multi-electron configuration interaction model of a double quantum dot system. We account for many-b…
Assessing quantum dot SWAP gate fidelity using tensor network methods
Jacob R. Taylor, Nathan L. Foulk, Sankar Das Sarma
Advanced tensor network numerical methods are used to explore the fidelity of repeated SWAP operations on a system comprising 20-100 quantum dot spin qubits in the presence of vall…
Realizable time crystal of four silicon quantum dot qubits
Nathan L. Foulk, Sankar Das Sarma
We demonstrate that exciting possible realizations of quantum Floquet matter are within reach for modern silicon spin qubits based in quantum dots, most notably the discrete time c…
Dissipation and gate timing errors in SWAP operations of qubits
Nathan L. Foulk, Robert E. Throckmorton, S. Das Sarma
We examine how dissipation and gate timing errors affect the fidelity of a sequence of SWAP gates on a chain of interacting qubits in comparison to noise in the interqubit interact…