63 citations · 163 across the 4 of their papers we have counts for
7 papers
Microscopic model of critical current noise in Josephson-junction qubits: Subgap resonances and Andreev bound states
Rogerio de Sousa, K. Birgitta Whaley, Theresa Hecht +2
We propose a microscopic model of critical current noise in Josephson-junctions based on individual trapping-centers in the tunnel barrier hybridized with electrons in the supercon…
Quantum non-demolition measurements of single donor spins in semiconductors
Mohan Sarovar, Kevin C. Young, Thomas Schenkel +1
We propose a technique for measuring the state of a single donor electron spin using a field-effect transistor induced two-dimensional electron gas and electrically detected magnet…
Optimal generation of single-qubit operation from an always-on interaction by algebraic decoupling
Jun Zhang, K. Birgitta Whaley
We present a direct algebraic decoupling approach to generate arbitrary single-qubit operations in the presence of a constant interaction by applying local control signals. To over…
Universal Scaling of Hyperfine-Induced Electron Spin Echo Decay
Neil Shenvi, Rogerio de Sousa, K. Birgitta Whaley
The decoherence of a localized electron spin in a lattice of nuclear spins is an important problem for potential solid-state implementations of a quantum computer. We demonstrate t…
Generation of quantum logic operations from physical Hamiltonians
Jun Zhang, K. Birgitta Whaley
We provide a systematic analysis of the physical generation of single- and two-qubit quantum operations from Hamiltonians available in various quantum systems for scalable quantum…
Qubit coherence control in a nuclear spin bath
Rogerio de Sousa, Neil Shenvi, K. Birgitta Whaley
Coherent dynamics of localized spins in semiconductors is limited by spectral diffusion arising from dipolar fluctuation of lattice nuclear spins. Here we extend the semiclassical…