Zobrazeno 1 - 10 of 171 pro vyhledávání: '"Nikolai N. Kolachevsky"'
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Akademický článek
Simultaneous bicolor interrogation in thulium optical clock providing very low systematic frequency shifts
Autor: Artem A. Golovizin, Dmitry O. Tregubov, Elena S. Fedorova, Denis A. Mishin, Daniil I. Provorchenko, Ksenia Yu. Khabarova, Vadim N. Sorokin, Nikolai N. Kolachevsky
Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
There are continuous efforts in improving the stability and systematic shifts of optical clocks. Here the authors demonstrate thulium optical clock utilizing bicolor scheme involving interrogation of both hyperfine levels and they are able to cancel
Externí odkaz: https://doaj.org/article/ec8148f229304b879f11c79f2e142633
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6
Comparison of Three Ultrastable Lasers with a Femtosecond Frequency Comb
Autor: Alexander S. Borisenko, N. O. Zhadnov, D. S. Kryuchkov, I. V. Zalivako, Nikolai N. Kolachevsky, K. S. Kudeyarov, K. Yu. Khabarova, E. O. Chiglintsev, G A Vishnyakova, A. A. Golovizin
Publikováno v: JETP Letters. 114:243-249
The comparison of optical oscillators is used both to determine their spectral characteristics and to perform fundamental research. To describe each individual laser system, it is necessary to compare at least three independent laser oscillators. Thr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::371cc4cd0d3a54cceb2fcfdb21c58f95
https://doi.org/10.1134/s0021364021170082
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8
Experimental Study of the Optical Qubit on the 435-nm Quadrupole Transition in the 171Yb+ Ion
Autor: I. V. Zalivako, I. A. Semerikov, Nikolai N. Kolachevsky, K. Yu. Khabarova, Alexander S. Borisenko, M. D. Aksenov
Publikováno v: JETP Letters. 114:59-64
Ultracold ions provide one of the most promising platforms for quantum computing and make it possible to reach record coherence times, the fidelity of preparation and readout operations, and single- and two-qubit operations. Encoding quantum informat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6cad0dafa4b0456cea7a90d18e5b1733
https://doi.org/10.1134/s0021364021140113
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9
Investigation of the transition at a wavelength of 506 nm, intended for deep cooling of thulium atoms
Autor: D. Mishin, V. N. Sorokin, D. Tregubov, D. Provorchenko, A. Golovizin, K. Yu. Khabarova, Nikolai N. Kolachevsky, E. S. Fedorova
Publikováno v: Quantum Electronics. 51:479-483
A scheme is proposed for the third stage of laser cooling of thulium atoms at a wavelength of 506.2 nm, and a system for stabilising the laser radiation frequency is described, which provides the required characteristics. The transition at a waveleng
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8272e570b99fdb907d3705fde1e2265c
https://doi.org/10.1070/qel17584
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10
Proton charge radius
Autor: Kseniya Yur’evna Khabarova, Nikolai N. Kolachevsky
Publikováno v: Uspekhi Fizicheskih Nauk. 191:1095-1106
The so-called proton charge radius puzzle was one of the challenging problems in physics in the last decade. A significant (at the level of four standard deviations (4σ)) difference between the values of the root-mean-square proton charge radius mea
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41e8816780c9fede508c51b0f40d23a1
https://doi.org/10.3367/ufnr.2021.06.038986
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