121 citations · 280 across the 6 of their papers we have counts for
7 papers
Magnetic gradient free two axis control of a valley spin qubit in SiGe
Y. -Y. Liu, L. A. Orona, Samuel F. Neyens +3
Spins in SiGe quantum dots are promising candidates for quantum bits but are also challenging due to the valley degeneracy which could potentially cause spin decoherence and weak s…
Radio frequency reflectometry in silicon-based quantum dots
Y. -Y. Liu, S. G. J. Philips, L. A. Orona +6
RF reflectometry offers a fast and sensitive method for charge sensing and spin readout in gated quantum dots. We focus in this work on the implementation of RF readout in accumula…
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…
Coupling Two Spin Qubits with a High-Impedance Resonator
S. P. Harvey, C. G. L. Bøttcher, L. A. Orona +3
Fast, high-fidelity single and two-qubit gates are essential to building a viable quantum information processor, but achieving both in the same system has proved challenging for sp…
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…
Tunneling in graphene-topological insulator hybrid devices
Hadar Steinberg, Lucas A. Orona, Valla Fatemi +4
Hybrid graphene-topological insulator (TI) devices were fabricated using a mechanical transfer method and studied via electronic transport. Devices consisting of bilayer graphene (…
Electrical Control of Optical Emitter Relaxation Pathways enabled by Graphene
K. J. Tielrooij, L. Orona, A. Ferrier +16
Controlling the energy flow processes and the associated energy relaxation rates of a light emitter is of high fundamental interest, and has many applications in the fields of quan…