394 research outputs found
Terrestrial vs. spaceborne, quantum vs. classical tests of the equivalence principle
The equivalence principle can be tested by precision experiments based on
classical and quantum systems, on the ground as well as in space. In many
models, these tests are mostly equivalent in their ability to constrain physics
beyond the Standard Model. We mention differences that nevertheless exist
between spaceborne and quantum mechanical tests and their conventional
competitors.Comment: Four pages for the proceedings of the sixth meeting on CPT and
Lorentz symmetr
Matter-wave Tests of the Gravitational Redshift in Space
A recent measurement of the gravitational redshift was based on interference
of matter waves. Operation in microgravity can improve it by a factor of
and, in some models, even .Comment: Talk given at the Fifth Meeting on CPT and Lorentz Symmetry, at
Indiana University, Bloomington, IN. Corrected problem with Figur
Atom interferometry in an optical cavity
We propose and demonstrate a new scheme for atom interferometry, using light
pulses inside an optical cavity as matter wave beamsplitters. The cavity
provides power enhancement, spatial filtering, and a precise beam geometry,
enabling new techniques such as low power beamsplitters (), large momentum transfer beamsplitters with modest power, or new
self-aligned interferometer geometries utilizing the transverse modes of the
optical cavity. As a first demonstration, we obtain Ramsey-Raman fringes with
contrast and measure the acceleration due to gravity, , to
resolution in a Mach-Zehnder geometry.
We use cesium atoms in the compact mode volume (
waist) of the cavity and show trapping of atoms in higher transverse
modes. This work paves the way toward compact, high sensitivity, multi-axis
interferometry.Comment: 5 pages, 6 figure
Building Student Engagement with Google Spaces
Google Spaces is an easy to setup group chat that could help with community building and communication. The presenter will demonstrate creating a Google Space. The presenter will also discuss the results of having used a Google Space with a class and brainstorm with participants uses for future classes
An Investigation of the Theology of C.W. Butler
The Reformation brought to light truths which had been hidden and forgotten for many years. The truth which Luther helped to bring to remembrance was that of justification by faith. This truth was the 1 source and determinate of his theology. About two hundred years later another man of God helped to bring out a forgotten truth, that of entire sanctification by faith. This man was John Wesley. This truth is regarded by many as being the source and determinate of his theology. 2 The Methodist Church, which sprang from the movement started by Wesley, spread to America, producing many great leaders. Much research has been done on the theology of Wesley and his immediate followers but a lesser amount of research has been done on those who followed him on the American scene. One of those who stood in the Wesleyan tradition in the American scene was C. W. Butler
Effects of Jamestown-Yorktown\u27s Educational Program on Fourth Grade Students\u27 Standards of Learning Score in Virginia Studies
The purpose of this study was to determine if Jamestown-Yorktown\u27s educational program had an effect in fourth grade students\u27 Standards of Learning score in Virginia Studies
- …