435 citations · 801 across the 6 of their papers we have counts for
6 papers
Optical probing of mechanical loss of a Si_{3}N_{4} membrane below 100 mK
R. Fischer, N. S. Kampel, G. G. T. Assumpção +5
We report on low mechanical loss in a high-stress silicon nitride (Si_{3}N_{4}) membrane at temperatures below 100 mK. We isolate a membrane via a phononic shield formed within a s…
Hybrid quantum systems with trapped charged particles
Shlomi Kotler, Raymond W. Simmonds, Dietrich Leibfried +1
We study theoretically the possibilities of coupling the quantum mechanical motion of a trapped charged particle (e.g. ion or electron) to quantum degrees of freedom of superconduc…
Sideband Cooling Beyond the Quantum Limit with Squeezed Light
Jeremy B. Clark, Florent Lecocq, Raymond W. Simmonds +2
Quantum fluctuations of the electromagnetic vacuum impose an observable quantum limit to the lowest temperatures that can be reached with conventional laser cooling techniques. As…
Tunable-Cavity QED with Phase Qubits
J. D. Whittaker, F. C. S. da Silva, M. S. Allman +6
We describe a tunable-cavity QED architecture with an rf SQUID phase qubit inductively coupled to a single-mode, resonant cavity with a tunable frequency that allows for both micro…
State Transfer Between a Mechanical Oscillator and Microwave Fields in the Quantum Regime
T. A. Palomaki, J. W. Harlow, J. D. Teufel +2
Recently, macroscopic mechanical oscillators have been coaxed into a regime of quantum behavior, by direct refrigeration [1] or a combination of refrigeration and laser-like coolin…
Time-Domain Detection of Weakly Coupled TLS Fluctuators in Phase Qubits
M. S. Allman, F. Altomare, J. D. Whittaker +6
We report on a method for detecting weakly coupled spurious two-level system fluctuators (TLSs) in superconducting qubits. This method is more sensitive that standard spectroscopic…