4 research outputs found
Deuterium spectroscopy for enhanced bounds on physics beyond the Standard Model
We consider the impact of combining precision spectroscopic measurements made
in atomic hydrogen with similar measurements made in atomic deuterium on the
search for physics beyond the Standard Model. Specifically we consider the wide
class of models that can be described by an effective Yukawa-type interaction
between the nucleus and the electron. We find that it is possible to set bounds
on new light-mass bosons that are orders of magnitude more sensitive than those
set using a single isotope only, provided the interaction couples differently
to the deuteron and proton. Further enhancements of these bounds by an order of
magnitude or more would be made possible by extending the current measurements
of the isotope shift of the 1s-2s transition frequency to that
of a transition between the 2s state and a Rydberg s-state.Comment: 16 pages, 9 figure
Deuterium spectroscopy for enhanced bounds on physics beyond the standard model
We consider the impact of combining precision spectroscopic measurements made
in atomic hydrogen with similar measurements made in atomic deuterium on the
search for physics beyond the Standard Model. Specifically we consider the wide
class of models that can be described by an effective Yukawa-type interaction
between the nucleus and the electron. We find that it is possible to set bounds
on new light-mass bosons that are orders of magnitude more sensitive than those
set using a single isotope only, provided the interaction couples differently
to the deuteron and proton. Further enhancements of these bounds by an order of
magnitude or more would be made possible by extending the current measurements
of the isotope shift of the 1s-2s transition frequency to that
of a transition between the 2s state and a Rydberg s-state.Comment: 16 pages, 9 figure
Detection of HF and VHF Fields through Floquet Sideband Gaps by `Rabi Matching' Dressed Rydberg Atoms
Radio frequencies in the HF and VHF (3 MHz to 300 MHz) bands are challenging
for Rydberg atom-based detection schemes, as resonant detection requires
exciting the atoms to extremely high energy states. We demonstrate a method for
detecting and measuring radio frequency (RF) carriers in the HF and VHF bands
via a controlled Autler-Townes line splitting. Using a resonant, high-frequency
(GHz) RF field, the absorption signal from Townes-Merrit sidebands created by a
low frequency, non-resonant RF field can be enhanced. Notably, this technique
uses a measurement of the optical frequency separation of an avoided crossing
to determine the amplitude of a non-resonant, low frequency RF field. This
technique also provides frequency-selective measurements of low frequency RF
electric fields. To show this, we demonstrate amplitude modulated signal
transduction on a low frequency VHF carrier. We further demonstrate reception
of multiple tones simultaneously, creating a Rydberg `spectrum analyzer' over
the VHF range.Comment: Data for figures can be found at:
https://datapub.nist.gov/od/id/mds2-285