Zobrazeno 1 - 10
of 816
pro vyhledávání: '"Sakemi, Y"'
Paul traps are devices that confine particles using an alternating electric field and have been used in undergraduate experimental classes at universities. Owing to the requirement of a high voltage ($> 10^3$ V), Paul traps are not used in middle and
Externí odkaz:
http://arxiv.org/abs/2309.07493
Autor:
Tanaka, K. S., Harada, K., Hayamizu, T., Kita, R., Kono, R., Maruta, K., Nagahama, H., Ozawa, N., Sakemi, Y., Sugimori, R.
In Japan, research activities by junior and senior high school students show an upward trend. However, there are limited examples of research activities in the field of elementary particles and atoms. This is due to the difficulty associated with pro
Externí odkaz:
http://arxiv.org/abs/2201.00576
Autor:
Mitra, R., Prasannaa, V. S., Ruiz, R. F. Garcia, Sato, T. K., Abe, M., Sakemi, Y., Das, B. P., Sahoo, B. K.
Molecules containing superheavy atoms can be artificially created to serve as sensitive probes for study of symmetry-violating phenomena. Here, we provide a detailed theoretical study for diatomic molecules containing the superheavy lawrencium nuclei
Externí odkaz:
http://arxiv.org/abs/2108.11909
Autor:
Tanaka, K. S., Dammalapati, U., Harada, K., Hayamizu, T., Itoh, M., Kawamura, H., Nagahama, H., Nakamura, K., Ozawa, N., Sakemi, Y.
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Volume 1017, 21 November 2021, 165803
Ions with similar charge-to-mass ratios cannot be separated from existing beam profile monitors (BPMs) in nuclear facilities in which low-energy radioactive ions are produced due to nuclear fusion reactions. In this study, we developed a BPM using a
Externí odkaz:
http://arxiv.org/abs/2108.10556
Autor:
Kawamura, H., Aoki, T., Harada, K., Inoue, T., Ito, S., Kato, K., Koehler, L., Sakamoto, K., Uchiyama, A., Sakemi, Y.
We investigate neutralization processes (especially thermal surface neutralization), which are required for the magneto-optical trapping of radioactive atoms. A variety of neutralization methods are first summarized: neutral beam injection for fusion
Externí odkaz:
http://arxiv.org/abs/1908.10698
Publikováno v:
Phys. Rev. A 100, 050101 (2019)
We propose a method for measuring parity violation in neutral atoms. It is an adaptation of a seminal work by Fortson [Phys. Rev. Lett. {\bf 70}, 2383 (1993)], proposing a scheme for a single trapped ion. In our version, a large sample of neutral ato
Externí odkaz:
http://arxiv.org/abs/1904.02211
Autor:
Sato, T., Ichikawa, Y., Kojima, S., Funayama, C., Tanaka, S., Inoue, T., Uchiyama, A., Gladkov, A., Takamine, A., Sakamoto, Y., Ohtomo, Y., Hirao, C., Chikamori, M., Hikota, E., Suzuki, T., Tsuchiya, M., Furukawa, T., Yoshimi, A., Bidinosti, C. P., Ino, T., Ueno, H., Matsuo, Y., Fukuyama, T., Yoshinaga, N., Sakemi, Y., Asahi, K.
Publikováno v:
Phys. Lett. A 382, 588-594 (2018)
We report on the operation of co-located ${}^{129}$Xe and ${}^{131}$Xe nuclear spin masers with an external feedback scheme, and discuss the use of ${}^{131}$Xe as a comagnetometer in measurements of the ${}^{129}$Xe spin precession frequency. By app
Externí odkaz:
http://arxiv.org/abs/1803.06821
Autor:
Harada, K., Aoki, T., Ezure, S., Kato, K., Hayamizu, T., Kawamura, H., Inoue, T., Arikawa, H., Ishikawa, T., Uchiyama, A., Sakamoto, K., Ito, S., Itoh, M., Ando, S., Hatakeyama, A., Hatanaka, K., Imai, K., Murakami, T., Nataraj, H. S., Shimizu, Y., Sato, T., Wakasa, T., Yoshida, H. P., Sakemi, Y.
Publikováno v:
Appl. Opt. 55, 1164 (2016)
We demonstrated a frequency offset locking between two laser sources using a waveguide-type electro-optic modulator (EOM) with 10th-order sidebands for magneto-optical trapping of Fr atoms. The frequency locking error signal was successfully obtained
Externí odkaz:
http://arxiv.org/abs/1604.00137
Publikováno v:
Phys. Rev. A 93, 043407 (2016)
The frequency dependent polarizabilities of the francium atom are calculated from the available data of energy levels and transition rates. Magic wavelengths for the state insensitive optical dipole trapping are identified from the calculated light s
Externí odkaz:
http://arxiv.org/abs/1603.07824
Publikováno v:
Phys. Rev. A 93, 032520 (2016)
Employing the relativistic coupled-cluster method, comparative studies of the parity non-conserving electric dipole amplitudes for the $7s \ ^2S_{1/2} \rightarrow 6d \ ^2D_{5/2}$ transitions in $^{210}$Fr and $^{211}$Fr isotopes have been carried out
Externí odkaz:
http://arxiv.org/abs/1512.02055