Zobrazeno 1 - 10
of 5 621
pro vyhledávání: '"ROBERTS, P. M."'
We perform a theoretical study of vacuum polarization corrections to the hyperfine structure in many-electron atoms. Calculations are performed for systems of interest for precision atomic tests of fundamental physics belonging to the alkali-metal at
Externí odkaz:
http://arxiv.org/abs/2409.17979
Autor:
Davis, A. Bianca, Garling, Christopher T., Nierenberg, Anna M., Peter, Annika H. G., Sardone, Amy, Kochanek, Christopher S., Leroy, Adam K., Casey, Kirsten J., Pogge, Richard W., Roberts, Daniella M., Sand, David J., Greco, Johnny P.
We present the results of the Large Binocular Telescope Satellites Of Nearby Galaxies Survey (LBT-SONG) ``Far Sample,'' including survey completeness estimates. We find 10 satellite candidates in the inner virial regions of 13 star-forming galaxies o
Externí odkaz:
http://arxiv.org/abs/2409.03999
We study $D=11$ supergravity solutions which are dual to one-dimensional superconformal defects in $d=3$ SCFTs. We consider defects in ABJM theory with monodromy for $U(1)^4\subset SO(8)$ global symmetry, as well as in $\mathcal{N}=2$ mABJM SCFT, whi
Externí odkaz:
http://arxiv.org/abs/2408.11088
We study type IIB supergravity solutions that are dual to two-dimensional superconformal defects in $d=4$ SCFTs which preserve $\mathcal{N}=(0,2)$ supersymmetry. We consider solutions dual to defects in $\mathcal{N}=4$ SYM theory that have non-trivia
Externí odkaz:
http://arxiv.org/abs/2405.06014
Autor:
Filzinger, Melina, Caddell, Ashlee R., Jani, Dhruv, Steinel, Martin, Giani, Leonardo, Huntemann, Nils, Roberts, Benjamin M.
We devise and demonstrate a method to search for non-gravitational couplings of ultralight dark matter to standard model particles using space-time separated atomic clocks and cavity-stabilized lasers. By making use of space-time separated sensors, w
Externí odkaz:
http://arxiv.org/abs/2312.13723
Autor:
Roberts, Matthew M., Wiseman, Toby
We consider the tight-binding model of graphene with slowly spatially varying hopping functions. We develop a low energy approximation as a derivative expansion in a Dirac spinor that is perturbative in the hopping function deformation. The leading d
Externí odkaz:
http://arxiv.org/abs/2305.08897
Publikováno v:
Physical Review D 108, 083030 (2023)
While most scintillation-based dark matter experiments search for Weakly Interacting Massive Particles (WIMPs), a sub-GeV WIMP-like particle may also be detectable in these experiments. While dark matter of this type and scale would not leave appreci
Externí odkaz:
http://arxiv.org/abs/2305.05125
Publikováno v:
Phys. Rev. A 107, 022813 (2023)
We use the radiative potential method to perform a detailed study of quantum electrodynamics (QED) radiative corrections to electric dipole (E1) transition amplitudes in heavy alkali-metal atoms Rb, Cs, Fr, and alkali-metal-like ions Sr+, Ba+, and Ra
Externí odkaz:
http://arxiv.org/abs/2212.11490
Autor:
Hamilton, Rhona, Roberts, Benjamin M., Scholten, Sarah K., Locke, Clayton, Luiten, Andre N., Ginges, Jacinda S. M., Perrella, Christopher
Publikováno v:
Physical Review Applied 19, 054059 (2023)
The interaction between light and an atom causes perturbations in the atom's energy levels, known as the light-shift. These light-shifts are a key source of inaccuracy in atomic clocks, and can also deteriorate their precision. We present a study of
Externí odkaz:
http://arxiv.org/abs/2212.10743