149 citations · 162 across the 2 of their papers we have counts for
6 papers
High-Fidelity Entanglement and Detection of Alkaline-Earth Rydberg Atoms
Ivaylo S. Madjarov, Jacob P. Covey, Adam L. Shaw +7
Trapped neutral atoms have become a prominent platform for quantum science, where entanglement fidelity records have been set using highly-excited Rydberg states. However, controll…
Improved entanglement detection with subspace witnesses
Won Kyu Calvin Sun, Alexandre Cooper, Paola Cappellaro
Entanglement, while being critical in many quantum applications, is difficult to characterize experimentally. While entanglement witnesses based on the fidelity to the target entan…
An atomic array optical clock with single-atom readout
Ivaylo S. Madjarov, Alexandre Cooper, Adam L. Shaw +5
Currently, the most accurate and stable clocks use optical interrogation of either a single ion or an ensemble of neutral atoms confined in an optical lattice. Here, we demonstrate…
2000-times repeated imaging of strontium atoms in clock-magic tweezer arrays
Jacob P. Covey, Ivaylo S. Madjarov, Alexandre Cooper +1
We demonstrate single-atom resolved imaging with a survival probability of and a fidelity of , enabling us to perform repeated high-fidelity imaging of sin…
Environment-assisted quantum-enhanced sensing with electronic spins in diamond
Alexandre Cooper, Won Kyu Calvin Sun, Jean-Christophe Jaskula +1
The performance of solid-state quantum sensors based on electronic spin defects is often limited by the presence of environmental spin impurities that cause decoherence. A promisin…
Alkaline earth atoms in optical tweezers
Alexandre Cooper, Jacob P. Covey, Ivaylo S. Madjarov +3
We demonstrate single-shot imaging and narrow-line cooling of individual alkaline earth atoms in optical tweezers; specifically, strontium-88 atoms trapped in lig…