91 citations · 342 across the 11 of their papers we have counts for
11 papers
Fast Microwave-free State Preparation and Measurement of Superconducting Qubits
R. Abraham, F. Amet, P. Anderson +212
Fast, high-fidelity, scalable state preparation and measurement is critical to the realization of a quantum computing system. The state-of-the-art methods for preparation and reado…
Disentangling superconductor and dielectric microwave losses in sub-micron / interconnects using a multi-mode microstrip resonator
Cougar A. T. Garcia, Nancyjane Bailey, Chris Kirby +4
Understanding the origins of power loss in superconducting interconnects is essential for the energy efficiency and scalability of superconducting digital logic. At microwave frequ…
Synchronous Chip-to-Chip Communication with a Multi-Chip Resonator Clock Distribution Network
Jonathan Egan, Max Nielsen, Joshua Strong +5
Superconducting digital circuits are a promising approach to build packaged-level integrated systems with high energy-efficiency and computational density. In such systems, perform…
Josephson junction microwave modulators for qubit control
O. Naaman, J. A. Strong, D. G. Ferguson +3
We demonstrate Josephson junction based double-balanced mixer and phase shifter circuits operating at 6-10 GHz, and integrate these components to implement both a monolithic amplit…
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…
Tripartite interactions between two phase qubits and a resonant cavity
F. Altomare, J. I. Park, K. Cicak +7
The creation and manipulation of multipartite entangled states is important for advancements in quantum computation and communication, and for testing our fundamental understanding…
Measurement crosstalk between two phase qubits coupled by a coplanar waveguide
Fabio Altomare, Katarina Cicak, Mika A. Sillanpää +8
We analyze the measurement crosstalk between two flux-biased phase qubits coupled by a resonant coplanar waveguide cavity. After the first qubit is measured, the superconducting ph…
RFSQUID-Mediated Coherent Tunable Coupling Between a Superconducting Phase Qubit and a Lumped Element Resonator
M. S. Allman, F. Altomare, J. D. Whittaker +6
We demonstrate coherent tunable coupling between a superconducting phase qubit and a lumped element resonator. The coupling strength is mediated by a flux-biased RF SQUID operated…
Low-loss superconducting resonant circuits using vacuum-gap-based microwave components
Katarina Cicak, Dale Li, Joshua A. Strong +6
We have produced high-quality complex microwave circuits, such as multiplexed resonators and superconducting phase qubits, using a "vacuum-gap" technology that eliminates lossy die…
Vacuum-Gap Capacitors for Low-Loss Superconducting Resonant Circuits
Katarina Cicak, Michael S. Allman, Joshua A. Strong +2
Low-loss microwave components are used in many superconducting resonant circuits from multiplexed readouts of low-temperature detector arrays to quantum bits. Two-level system defe…
Frequency-Tunable Josephson Junction Resonator for Quantum Computing
K. D. Osborn, J. A. Strong, A. J. Sirois +1
We have fabricated and measured a high-Q Josephson junction resonator with a tunable resonance frequency. A dc magnetic flux allows the resonance frequency to be changed by over 10…