activity
20082026
most citedDevelopment of a new UHV/XHV pressure standard (cold atom vacuum standard)

53 citations · 238 across the 25 of their papers we have counts for

collaborators
Showing 2020Show all

7 papers · 1 filter

physics.atom-ph2020

PyLCP: A python package for computing laser cooling physics

S. Eckel, D. S. Barker, E. B. Norrgard +1

We present a python object-oriented computer program for simulating various aspects of laser cooling physics. Our software is designed to be both easy to use and adaptable, allowin…

physics.atom-ph2020

Quantum Blackbody Thermometry

Eric B. Norrgard, Stephen P. Eckel, Christopher L. Holloway +1

Blackbody radiation (BBR) sources are calculable radiation sources that are frequently used in radiometry, temperature dissemination, and remote sensing. Despite their ubiquity, bl…

physics.app-ph2020

Outgassing rate comparison of seven geometrically similar vacuum chambers of different materials and heat treatments

James A. Fedchak, Julia K. Scherschligt, Sefer Avdiaj +5

We have measured the water and hydrogen outgassing rates of seven vacuum chambers of identical geometry but constructed of different materials and heat treatments. Chambers of five…

cond-mat.quant-gas2020

Phonon redshift and Hubble friction in an expanding BEC

Stephen Eckel, Ted Jacobson

We revisit the theoretical analysis of an expanding ring-shaped Bose-Einstein condensate. Starting from the action and integrating over dimensions orthogonal to the phonon's direct…

physics.ins-det2020

A Bitter-type electromagnet for complex atomic trapping and manipulation

J. L. Siegel, D. S. Barker, J. Fedchak +2

We create a pair of symmetric Bitter-type electromagnet assemblies capable of producing multiple field configurations including uniform magnetic fields, spherical quadruple traps,…

physics.atom-ph2020

Confinement of an alkaline-earth element in a grating magneto-optical trap

A. Sitaram, P. K. Elgee, G. K. Campbell +3

We demonstrate a compact magneto-optical trap (MOT) of alkaline-earth atoms using a nanofabricated diffraction grating chip. A single input laser beam, resonant with the broad …