72 citations · 155 across the 10 of their papers we have counts for
10 papers
Thermally-Polarized Solid-State Spin Sensor
Reginald Wilcox, Erik Eisenach, John Barry +4
Quantum sensors based on spin defect ensembles have seen rapid development in recent years, with a wide array of target applications. Historically, these sensors have used optical…
Error mitigation via stabilizer measurement emulation
A. Greene, M. Kjaergaard, M. E. Schwartz +16
Dynamical decoupling (DD) is a widely-used quantum control technique that takes advantage of temporal symmetries in order to partially suppress quantum errors without the need reso…
Signal Enhancement for Magnetic Navigation Challenge Problem
Albert R. Gnadt, Joseph Belarge, Aaron Canciani +10
Harnessing the magnetic field of the Earth for navigation has shown promise as a viable alternative to other navigation systems. A magnetic navigation system collects its own magne…
Cavity quantum electrodynamic readout of a solid-state spin sensor
Erik R. Eisenach, John F. Barry, Michael F. O'Keeffe +4
Robust, high-fidelity readout is central to quantum device performance. Overcoming poor readout is an increasingly urgent challenge for devices based on solid-state spin defects, p…
Programming a quantum computer with quantum instructions
Morten Kjaergaard, Mollie E. Schwartz, Ami Greene +20
The equivalence between the instructions used to define programs and the input data on which the instructions operate is a basic principle of classical computer architectures and p…
Hamiltonian Engineering with Constrained Optimization for Quantum Sensing and Control
Michael F. O'Keeffe, Lior Horesh, John F. Barry +2
While quantum devices rely on interactions between constituent subsystems and with their environment to operate, native interactions alone often fail to deliver targeted performanc…
Landau-Zener dynamics of a nanoresonator containing a tunneling spin
Michael F. O'Keeffe, Eugene M. Chudnovsky, Dmitry A. Garanin
We study the Landau-Zener dynamics of a tunneling spin coupled to a torsional resonator. For strong spin-phonon coupling, when the oscillator frequency is large compared to the tun…
Conservation of Angular Momentum in a Flux Qubit
E. M. Chudnovsky, D. A. Garanin, M. F. O'Keeffe
Oscillations of superconducting current between clockwise and counterclockwise directions in a flux qubit do not conserve the angular momentum of the qubit. To compensate for this…
Quantum Tunneling of the Magnetic Moment in a Free Particle
M. F. O'Keeffe, E. M. Chudnovsky, D. A. Garanin
We study tunneling of the magnetic moment in a particle that has full rotational freedom. Exact energy levels are obtained and the ground-state magnetic moment is computed for a sy…
Renormalization of the tunnel splitting in a rotating nanomagnet
Michael F. O'Keeffe, Eugene M. Chudnovsky
We study spin tunneling in a magnetic nanoparticle with biaxial anisotropy that is free to rotate about its anisotropy axis. Exact instanton of the coupled equations of motion is f…