5 papers
A high fidelity light-shift gate for clock-state qubits
C. H. Baldwin, B. J. Bjork, M. Foss-Feig +7
To date, the highest fidelity quantum logic gates between two qubits have been achieved with variations on the geometric-phase gate in trapped ions, with the two leading variants b…
Eliminating Leakage Errors in Hyperfine Qubits
D. Hayes, D. Stack, B. Bjork +3
Population leakage outside the qubit subspace presents a particularly harmful source of error that cannot be handled by standard error correction methods. Using a trapped Y…
Subspace benchmarking high-fidelity entangling operations with trapped ions
C. H. Baldwin, B. J. Bjork, J. P. Gaebler +2
We present a new and simplified two-qubit randomized benchmarking procedure that operates only in the symmetric subspace of a pair of qubits and is well suited for benchmarking tra…
Phase-stabilized 100 mW frequency comb near 10 μm
Kana Iwakuni, Gil Porat, Thinh Q. Bui +5
Long-wavelength mid-infrared frequency combs with high power and flexible tunability are highly desired for molecular spectroscopy, including investigation of large molecules such…
High-performance near- and mid-infrared crystalline coatings
Garrett D. Cole, Wei Zhang, Bryce J. Bjork +11
Substrate-transferred crystalline coatings have recently emerged as a groundbreaking new concept in optical interference coatings. Building upon our initial demonstration of this t…