Hybrid Circuit Quantum Electrodynamics Landau-Zener Interferometry Nanowire Synthesis Nitrogen Vacancy Centers in Diamond Single Charge Coherence Spin-Momentum Locking in Topological Insulators Spin-Orbit Qubits Ultra-Coherent Spin Qubits
Our research focuses on quantum control of nanometer scale systems. Semiconductor quantum dots are used to isolate single electron spins, which exhibit long quantum coherence times. These systems allow quantum mechanics to be harnessed in a solid state environment for the implementation of quantum gates. We use nanofabrication to create artificially structured systems with experimentally tunable Hamiltonians that can be controlled on sub-nanosecond timescales. Recent research examines strong light-matter interactions in the circuit quantum electrodynamics architecture, with a goal of generating long-range many body entanglement. Silicon and diamond are ideal host materials for spin coherence, leading to spin coherence times that now approach 10 seconds. A major effort in the group consists of developing a scalable quantum computing architecture in isotopically purified silicon. Research advances are enabled by a tight feedback loop that links nanoscale materials synthesis and advanced transport measurements.

 Recent Publications

Atom-by-atom construction of a quantum device

Jason R. Petta
ACS Nano (Article ASAP, 2017)

Electron spin resonance at the level of 104 spins using low impedance superconducting resonators

C. Eichler, A. J. Sigillito, S. A. Lyon, and J. R. Petta
Phys. Rev. Lett. 118, 037701 (2017)

Circuit quantum electrodynamics architecture for gate-defined quantum dots in silicon

X. Mi, J. V. Cady, D. M. Zajac, J. Stehlik, L. F. Edge, and J. R. Petta
Appl. Phys. Lett. 110, 043502 (2017)

Strong coupling of a single electron in silicon to a microwave photon

X. Mi, J. V. Cady, D. M. Zajac, P. W. Deelman, J. R. Petta
Science 355, 156 (2017)