Zobrazeno 1 - 10
of 236
pro vyhledávání: '"Golovizin, A."'
We report on building a pulsed source of cold Tm atoms and loading of the narrow-line magnito-optical trap (MOT) from the cold atomic beam. We achieve the loading rate of the first-stage MOT in the primary chamber up to $10^8$ atoms/s and obtain a co
Externí odkaz:
http://arxiv.org/abs/2411.08807
Publikováno v:
JETP Letters 119, 2024, 659-664
The experimental comparison of two thulium optical lattice clocks in a time interval of up to one hour has been carried out. The synchronous comparison of a clock transition in two independent atomic ensembles using a single ultrastable laser has all
Externí odkaz:
http://arxiv.org/abs/2407.04139
We report a new 40 ppb measurement of the positronium $\text{1}^\text{3}\text{S}_\text{1} \to \text{2}^\text{3}\text{S}_\text{1}$ interval using pulsed two-photon optical spectroscopy. The transition is detected via field-ionization of atoms excited
Externí odkaz:
http://arxiv.org/abs/2407.02443
The hyperfine structure of atoms and ions is widely used in fundamental and applied research. Accurate knowledge of hyperfine splitting values is essential for quantum metrology applications as well as for improving the performance of systems designe
Externí odkaz:
http://arxiv.org/abs/2406.20002
Autor:
Golovizin, Artem
In neutral atom optical clocks, the higher-order atomic polarizability terms lead to the clock transition frequency shift which is motion-state dependent and nonlinear with the optical lattice depth. We propose to use an auxiliary optical lattice to
Externí odkaz:
http://arxiv.org/abs/2402.02550
Autor:
Zhadnov, Nikita, Golovizin, Artem, Cortinovis, Irene, Ohayon, Ben, Borges, Lucas de Sousa, Janka, Gianluca, Crivelli, Paolo
Publikováno v:
Optics Express Vol. 31, Issue 17, pp. 28470-28479 (2023)
We present a novel technique for in-vacuum cavity-enhanced UV spectroscopy that allows nearly continuous measurements over several days, minimizing mirror degradation caused by high-power UV radiation. Our method relies on pulsing of the cavity's int
Externí odkaz:
http://arxiv.org/abs/2304.13527
Autor:
Provorchenko, Daniil, Tregubov, Dmitry, Mishin, Denis, Yaushev, Mikhail, Kryuchkov, Denis, Sorokin, Vadim, Khabarova, Ksenia, Golovizin, Artem, Kolachevsky, Nikolay
Publikováno v:
Atoms. 2023; 11(2):30
Deep laser cooling of atoms, ions, and molecules facilitates the study of fundamental physics as well as applied research. In this work, we report on the narrow-line laser cooling of thulium atoms at the wavelength of $506.2\,\textrm{nm}$ with the na
Externí odkaz:
http://arxiv.org/abs/2303.05804
Autor:
Cortinovis, Irene, Ohayon, Ben, Borges, Lucas de Sousa, Janka, Gianluca, Golovizin, Artem, Zhadnov, Nikita, Crivelli, Paolo
We present an updated value of the Muonium 1S-2S transition frequency, highlighting contributions from different QED corrections as well as the large uncertainty in the Dirac contribution, stemming from the uncertainty of the electron-to-muon mass ra
Externí odkaz:
http://arxiv.org/abs/2301.12883
Autor:
Janka, G., Ohayon, B., Cortinovis, I., Burkley, Z., Borges, L. de Sousa, Depero, E., Golovizin, A., Ni, X., Salman, Z., Suter, A., Prokscha, T., Crivelli, P.
Muons are puzzling physicists since their discovery when they were first thought to be the meson predicted by Yukawa to mediate the strong force. The recent results at Fermilab on the muon g-2 anomaly puts the muonic sector once more under the spotli
Externí odkaz:
http://arxiv.org/abs/2205.06202
Autor:
Ohayon, B., Janka, G., Cortinovis, I., Burkley, Z., Bourges, L. de Sousa, Depero, E., Golovizin, A., Ni, X., Salman, Z., Suter, A., Vigo, C., Prokscha, T., Crivelli, P.
We report a new measurement of the $n=2$ Lamb shift in Muonium using microwave spectroscopy. Our result of $1047.2(2.3)_\textrm{stat}(1.1)_\textrm{syst}$ MHz comprises an order of magnitude improvement upon the previous best measurement. This value m
Externí odkaz:
http://arxiv.org/abs/2108.12891