1.1k citations · 2.8k across the 9 of their papers we have counts for
9 papers
Distinguishing coherent and thermal photon noise in a circuit QED system
Fei Yan, Dan Campbell, Philip Krantz +9
In the cavity-QED architecture, photon number fluctuations from residual cavity photons cause qubit dephasing due to the AC Stark effect. These unwanted photons originate from a va…
Coherent coupled qubits for quantum annealing
Steven J. Weber, Gabriel O. Samach, David Hover +9
Quantum annealing is an optimization technique which potentially leverages quantum tunneling to enhance computational performance. Existing quantum annealers use superconducting fl…
Suppressing relaxation in superconducting qubits by quasiparticle pumping
Simon Gustavsson, Fei Yan, Gianluigi Catelani +15
Dynamical error suppression techniques are commonly used to improve coherence in quantum systems. They reduce dephasing errors by applying control pulses designed to reverse errone…
Improved superconducting qubit coherence with high-temperature substrate annealing
Archana Kamal, Jonilyn L. Yoder, Fei Yan +7
We assess independently the impact of high-temperature substrate annealing and metal deposition conditions on the coherence of transmon qubits in the standard 2D circuit-QED archit…
The Flux Qubit Revisited to Enhance Coherence and Reproducibility
F. Yan, S. Gustavsson, A. Kamal +11
The scalable application of quantum information science will stand on reproducible and controllable high-coherence quantum bits (qubits). Here, we revisit the design and fabricatio…
Thermal and Residual Excited-State Population in a 3D Transmon Qubit
X. Y. Jin, A. Kamal, A. P. Sears +9
We present a systematic study of the first excited-state population in a 3D transmon qubit mounted in a dilution refrigerator with a variable temperature. Using a modified version…