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Cavity-Mediated Entanglement Generation Via Landau-Zener Interferometry
C. M. Quintana, K. D. Petersson, L. W. McFaul +3
We demonstrate quantum control and entanglement generation using a Landau-Zener beam splitter formed by coupling two transmon qubits to a superconducting cavity. Single passage thr…
Interplay of charge and spin coherence in Landau-Zener-Stückelberg-Majorana interferometry
Hugo Ribeiro, J. R. Petta, Guido Burkard
We study Landau-Zener dynamics in a double quantum dot filled with two electrons, where the spin states can become correlated with charge states and the level velocity can be tuned…
A Radio Frequency Charge Parity Meter
M. D. Schroer, M. Jung, K. D. Petersson +1
We demonstrate a total charge parity measurement by detecting the radio frequency signal that is reflected by a lumped element resonator coupled to a single InAs nanowire double qu…
Coherent Adiabatic Spin Control in the Presence of Charge Noise Using Tailored Pulses
Hugo Ribeiro, Guido Burkard, J. R. Petta +2
We study finite-time Landau-Zener transitions at a singlet-triplet level crossing in a GaAs double quantum dot, both experimentally and theoretically. Sweeps across the anticrossin…
Controlled MOCVD growth of Bi2Se3 topological insulator nanoribbons
L. D. Alegria, J. R. Petta
Topological insulators are a new class of materials that support topologically protected electronic surface states. Potential applications of the surface states in low dissipation…
Circuit Quantum Electrodynamics with a Spin Qubit
K. D. Petersson, L. W. McFaul, M. D. Schroer +4
Circuit quantum electrodynamics allows spatially separated superconducting qubits to interact via a "quantum bus", enabling two-qubit entanglement and the implementation of simple…