552 citations · 2.3k across the 16 of their papers we have counts for
10 papers · 1 filter
Quantum Dots / Spin Qubits
Shannon Harvey
Spin qubits in semiconductor quantum dots represent a prominent family of solid-state qubits in the effort to build a quantum computer. They are formed when electrons or holes are…
Parametric longitudinal coupling between a high-impedance superconducting resonator and a semiconductor quantum dot singlet-triplet spin qubit
C. G. L. Bøttcher, S. P. Harvey, S. Fallahi +5
Long-distance two-qubit coupling, mediated by a superconducting resonator, is a leading paradigm for performing entangling operations in a quantum computer based on spins in semico…
Readout Of Singlet-Triplet Qubits At Large Magnetic Field Gradients
Lucas A. Orona, John M. Nichol, Shannon P. Harvey +5
Visibility of singlet-triplet qubit readout is reduced to almost zero in large magnetic field gradients due to relaxation processes. Here we present a new readout technique that is…
Tuning methods for semiconductor spin--qubits
Tim Botzem, Michael D. Shulman, Sandra Foletti +13
We present efficient methods to reliably characterize and tune gate-defined semiconductor spin qubits. Our methods are designed to target the tuning procedures of semiconductor dou…
High-fidelity entangling gate for double-quantum-dot spin qubits
John M. Nichol, Lucas A. Orona, Shannon P. Harvey +4
Electron spins in semiconductors are promising qubits because their long coherence times enable nearly 10^9 coherent quantum gate operations. However, developing a scalable high-fi…
Electron spin-flip correlations due to nuclear dynamics in driven GaAs double dots
Arijeet Pal, John M. Nichol, Michael D. Shulman +5
We present experimental data and associated theory for correlations in a series of experiments involving repeated Landau-Zener sweeps through the crossing point of a singlet state…
Quenching of dynamic nuclear polarization by spin-orbit coupling in GaAs quantum dots
John M. Nichol, Shannon P. Harvey, Michael D. Shulman +5
The central-spin problem, in which an electron spin interacts with a nuclear spin bath, is a widely studied model of quantum decoherence. Dynamic nuclear polarization (DNP) occurs…
Suppressing qubit dephasing using real-time Hamiltonian estimation
Michael D. Shulman, Shannon P. Harvey, John M. Nichol +4
Unwanted interaction between a quantum system and its fluctuating environment leads to decoherence and is the primary obstacle to establishing a scalable quantum information proces…
Electrometry Using Coherent Exchange Oscillations in a Singlet-Triplet-Qubit
O. E. Dial, M. D. Shulman, S. P. Harvey +3
Two level systems that can be reliably controlled and measured hold promise in both metrology and as qubits for quantum information science (QIS). When prepared in a superposition…
Demonstration of Entanglement of Electrostatically Coupled Singlet-Triplet Qubits
Michael D. Shulman, Oliver E. Dial, Shannon P. Harvey +3
Quantum computers have the potential to solve certain interesting problems significantly faster than classical computers. To exploit the power of a quantum computation it is necess…