4 papers
Compatibility of trapped ions and dielectrics at cryogenic temperatures
M. Bruff, L. Sonderhouse, K. N. David +3
We study the impact of an unshielded dielectric $\unicode{x2013}$ here, a bare optical fiber $\unicode{x2013}$ on a Ca ion held several hundred m away in a cryogen…
Robust Two-Qubit Geometric Phase Gates using Amplitude and Frequency Ramping
Christina Bowers, Deviprasath Palani, John Barta +4
We demonstrate a method for generating entanglement between trapped atomic ions based on adiabatically ramped state-dependent forces. By ramping both the amplitude of the state-dep…
A high optical access cryogenic system for Rydberg atom arrays with a 3000-second trap lifetime
Zhenpu Zhang, Ting-Wei Hsu, Ting You Tan +4
We present an optical tweezer array of Rb atoms housed in an cryogenic environment that successfully combines a 4 K cryopumping surface, a <50 K cold box surrounding the ato…
Individual Addressing and State Readout of Trapped Ions Utilizing Radio-Frequency Micromotion
Nathan K Lysne, Justin F Niedermeyer, Andrew C Wilson +2
Excess "micromotion" of trapped ions due to the residual radio-frequency (rf) trapping field at their location is often undesirable and is usually carefully minimized. Here, we ind…