Zobrazeno 1 - 10
of 4 921
pro vyhledávání: '"ARNOLD, A. J."'
Autor:
Arnold, K. J., Barrett, M. D.
We present a numerical method for extrapolating polarizability measurements to dc as done in the assessment of blackbody radiation shifts for ion-based clocks. The method explicitly accounts for the frequency dependence of relevant atomic transitions
Externí odkaz:
http://arxiv.org/abs/2409.01476
We review our progress in developing a frequency reference with singly ionized lutetium and give estimates of the levels of inaccuracy we expect to achieve in the near future with both the $^1S_0\leftrightarrow{}^3D_1$ and $^1S_0\leftrightarrow{}^3D_
Externí odkaz:
http://arxiv.org/abs/2404.16414
Autor:
Arnold, K. J., Jayjong, N., Kang, M. L. D., Qichen, Qin, Zhang, Zhao, Zhao, Qi, Barrett, M. D.
We investigate sideband spectroscopy of a trapped ion using a probe laser phase modulated at the trap drive frequency. The enhanced sensitivity of our technique over traditional sideband spectroscopy allows us to detect stray fields of $0.01\,\mathrm
Externí odkaz:
http://arxiv.org/abs/2402.18142
We experimentally demonstrate agreement between two $^{176}$Lu$^+$ frequency references using correlation spectroscopy. From a comparison at different magnetic fields, we obtain a quadratic Zeeman coefficient of $-4.89264(88)\,\mathrm{Hz/mT^2}$, whic
Externí odkaz:
http://arxiv.org/abs/2212.04652
Most existing works on optimal filtering of linear time-invariant (LTI) stochastic systems with arbitrary unknown inputs assume perfect knowledge of the covariances of the noises in the filter design. This is impractical and raises the question of wh
Externí odkaz:
http://arxiv.org/abs/2209.07104
Fabricating freeform mirrors relies on accurate optical figuring processes capable of arbitrarily modifying low-spatial frequency height without creating higher-spatial frequency errors. We present a scalable process to accurately figure thin mirrors
Externí odkaz:
http://arxiv.org/abs/2203.15956