



@article {3502,
	title = {Ion trap with in-vacuum high numerical aperture imaging for a dual-species modular quantum computer},
	journal = {Review of Scientific Instruments},
	volume = {95},
	year = {2024},
	month = {3/26/2024},
	abstract = {<p>Photonic interconnects between quantum systems will play a central role in both scalable quantum computing and quantum networking. Entanglement of remote qubits via photons has been demonstrated in many platforms; however, improving the rate of entanglement generation will be instrumental for integrating photonic links into modular quantum computers. We present an ion trap system that has the highest reported free-space photon collection efficiency for quantum networking. We use a pair of in-vacuum aspheric lenses, each with a numerical aperture of 0.8, to couple 10\% of the 493 nm photons emitted from a 138Ba+ ion into single-mode fibers. We also demonstrate that proximal effects of the lenses on the ion position and motion can be mitigated.</p>},
	issn = {1089-7623},
	doi = {http://dx.doi.org/10.1063/5.0180732},
	url = {https://arxiv.org/abs/2310.07058},
	author = {Carter, Allison L. and O{\textquoteright}Reilly, Jameson and Toh, George and Saha, Sagnik and Shalaev, Mikhail and Goetting, Isabella and Monroe, Christopher}
}
