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Search Publications by: Jacek Klos (Assoc)

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Displaying 1 - 3 of 3

Transit time corrections to the diffusion of atomic lattices

March 2, 2026
Author(s)
Alexander Pouliot, Gehrig Carlse, Eduardo Chomen Ramos, Thomas Vacheresse, Jaskaran Randhawa, Anantharaman Kumarakrishnan, Jacek Klos, Eite Tiesinga
We present transit time corrections for the diffusive decay of a ground state population grating formed by spatially periodic optical pumping. We present two classes of results, the first of which applies to a population grating with a Gaussian envelope

Effect of ''glancing'' collisions in the cold atom vacuum standard

February 12, 2025
Author(s)
Stephen Eckel, Daniel Barker, James A. Fedchak, Jacek Klos, Julia Scherschligt, Eite Tiesinga
We theoretically investigate the effect of "glancing" collisions on the ultra-high-vacuum pressure readings of the cold-atom vacuum standard (CAVS), based on either ultracold $^7$Li or $^87}$Rb atoms. Here, glancing collisions are those collisions between

Accurate measurement of the loss rate of cold atoms due to background gas collisions for the quantum-based cold atom vacuum standard

August 1, 2023
Author(s)
Daniel Barker, James A. Fedchak, Jacek Klos, Julia Scherschligt, Abrar Sheikh, Eite Tiesinga, Stephen Eckel
We present measurements of thermalized collisional rate coefficients for ultra-cold $^7$Li and $^87}$Rb colliding with room-temperature He, Ne, N$_2$, Ar, Kr, and Xe. In our experiments, a combined flowmeter and dynamic expansion system, a vacuum metrology
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