Zobrazeno 1 - 10
of 1 685
pro vyhledávání: '"Urrutia J"'
There is a growing interest in high-precision spectroscopy and frequency metrology for fundamental studies using sympathetically cooled highly charged ions (HCIs) embedded in Coulomb crystals of laser-cooled ions. In order to understand how their str
Externí odkaz:
http://arxiv.org/abs/2408.05049
Autor:
Porsev, S. G., Cheung, C., Safronova, M. S., Bekker, H., Rehbehn, N. -H., Lopez-Urrutia, J. R. Crespo, Brewer, S. M.
We propose In-like Pr10+ as a candidate for the development of a high-accuracy optical clock with high sensitivity to a time variation of the fine-structure constant, (\dot alpha}/alpha, as well as favorable experimental systematics. We calculate its
Externí odkaz:
http://arxiv.org/abs/2407.17610
Autor:
Morgner, J., Tu, B., König, C. M., Sailer, T., Heiße, F., Bekker, H., Sikora, B., Lyu, C., Yerokhin, V. A., Harman, Z., López-Urrutia, J. R. Crespo, Keitel, C. H., Sturm, S., Blaum, K.
Inner-shell electrons naturally sense the electric field close to the nucleus, which can reach extreme values beyond $10^{15}\,\text{V}/\text{cm}$ for the innermost electrons. Especially in few-electron highly charged ions, the interaction with the e
Externí odkaz:
http://arxiv.org/abs/2307.06613
Autor:
Bereg, S., Díaz-Báñez, J. M., Haghpanah, M., Horn, P., Lopez, M. A., Marín, N., Ramírez-Vigueras, A., Rodríguez, F., Solé-Pi, O., Stevens, A., Urrutia, J.
Imagine an island modeled as a simple polygon $\P$ with $n$ vertices whose coastline we wish to monitor. We consider the problem of building the minimum number of refueling stations along the boundary of $\P$ in such a way that a drone can follow a p
Externí odkaz:
http://arxiv.org/abs/2209.13311
Autor:
Aldana-Galván, I., Catana-Salazar, J. C., Díaz-Báñez, J. M., Duque, F., Fabila-Monroy, R., Heredia, M. A., Ramírez-Vigueras, A., Urrutia, J.
We study the algorithmic problem of optimally covering a tree with $k$ mobile robots. The tree is known to all robots, and our goal is to assign a walk to each robot in such a way that the union of these walks covers the whole tree. We assume that th
Externí odkaz:
http://arxiv.org/abs/2209.07557
Autor:
Díaz-Báñez, J. M., Horn, P., Lopez, M. A., Marín, N., Ramírez-Vigueras, A., Solé-Pi, O., Stevens, A., Urrutia, J.
An orthogonal polygon is called an ortho-unit polygon if its vertices have integer coordinates, and all of its edges have length one. In this paper we prove that any ortho-unit polygon with $n \geq 12$ vertices can be guarded with at most $\lfloor \f
Externí odkaz:
http://arxiv.org/abs/2208.12864
Autor:
Antypas, D., Banerjee, A., Bartram, C., Baryakhtar, M., Betz, J., Bollinger, J. J., Boutan, C., Bowring, D., Budker, D., Carney, D., Carosi, G., Chaudhuri, S., Cheong, S., Chou, A., Chowdhury, M. D., Co, R. T., López-Urrutia, J. R. Crespo, Demarteau, M., DePorzio, N., Derbin, A. V., Deshpande, T., Di Luzio, L., Diaz-Morcillo, A., Doyle, J. M., Drlica-Wagner, A., Droster, A., Du, N., Döbrich, B., Eby, J., Essig, R., Farren, G. S., Figueroa, N. L., Fry, J. T., Gardner, S., Geraci, A. A., Ghalsasi, A., Ghosh, S., Giannotti, M., Gimeno, B., Griffin, S. M., Grin, D., Grote, H., Gundlach, J. H., Guzzetti, M., Hanneke, D., Harnik, R., Henning, R., Irsic, V., Jackson, H., Kimball, D. F. Jackson, Jaeckel, J., Kagan, M., Kedar, D., Khatiwada, R., Knirck, S., Kolkowitz, S., Kovachy, T., Kuenstner, S. E., Lasner, Z., Leder, A. F., Lehnert, R., Leibrandt, D. R., Lentz, E., Lewis, S. M., Liu, Z., Manley, J., Maruyama, R. H., Millar, A. J., Muratova, V. N., Musoke, N., Nagaitsev, S., Noroozian, O., O'Hare, C. A. J., Ouellet, J. L., Pappas, K. M. W., Peik, E., Perez, G., Phipps, A., Rapidis, N. M., Robinson, J. M., Robles, V. H., Rogers, K. K., Rudolph, J., Rybka, G., Safdari, M., Safronova, M. S., Salemi, C. P., Schmidt, P. O., Schumm, T., Schwartzman, A., Shu, J., Simanovskaia, M., Singh, J., Singh, S., Smith, M. S., Snow, W. M., Stadnik, Y. V., Sun, C., Sushkov, A. O., Tait, T. M. P., Takhistov, V., Tanner, D. B., Temples, D. J., Thirolf, P. G., Thomas, J. H., Tobar, M. E., Tretiak, O., Tsai, Y. -D., Tyson, J. A., Vandegar, M., Vermeulen, S., Visinelli, L., Vitagliano, E., Wang, Z., Wilson, D. J., Winslow, L., Withington, S., Wooten, M., Yang, J., Ye, J., Young, B. A., Yu, F., Zaheer, M. H., Zelevinsky, T., Zhao, Y., Zhou, K.
The last decade has seen unprecedented effort in dark matter model building at all mass scales coupled with the design of numerous new detection strategies. Transformative advances in quantum technologies have led to a plethora of new high-precision
Externí odkaz:
http://arxiv.org/abs/2203.14915
Autor:
Stierhof, J., Kühn, S., Winter, M., Micke, P., Steinbrügge, R., Shah, C., Hell, N., Bissinger, M., Hirsch, M., Ballhausen, R., Lang, M., Gräfe, C., Wipf, S., Cumbee, R., Betancourt-Martinez, G. L., Park, S., Niskanen, J., Chung, M., Porter, F. S., Stöhlker, T., Pfeifer, T., Brown, G. V., Bernitt, S., Hansmann, P., Wilms, J., López-Urrutia, J. R. Crespo, Leutenegger, M. A.
A key requirement for the correct interpretation of high-resolution X-ray spectra is that transition energies are known with high accuracy and precision. We investigate the K-shell features of Ne, CO$_2$, and SF$_6$ gases, by measuring their photo io
Externí odkaz:
http://arxiv.org/abs/2203.03725
Autor:
Barontini, G., Blackburn, L., Boyer, V., Butuc-Mayer, F., Calmet, X., Lopez-Urrutia, J. R. Crespo, Curtis, E. A., Darquie, B., Dunningham, J., Fitch, N. J., Forgan, E. M., Georgiou, K., Gill, P., Godun, R. M., Goldwin, J., Guarrera, V., Harwood, A. C., Hill, I. R., Hendricks, R. J., Jeong, M., Johnson, M. Y. H., Keller, M., Sajith, L. P. Kozhiparambil, Kuipers, F., Margolis, H. S., Mayo, C., Newman, P., Parsons, A. O., Prokhorov, L., Robertson, B. I., Rodewald, J., Safronova, M. S., Sauer, B. E., Schioppo, M., Sherrill, N., Stadnik, Y. V., Szymaniec, K., Tarbutt, M. R., Thompson, R. C., Tofful, A., Tunesi, J., Vecchio, A., Wang, Y., Worm, S.
Publikováno v:
EPJ Quantum Technology volume 9, Article number: 12 (2022)
The detection of variations of fundamental constants of the Standard Model would provide us with compelling evidence of new physics, and could lift the veil on the nature of dark matter and dark energy. In this work, we discuss how a network of atomi
Externí odkaz:
http://arxiv.org/abs/2112.10618
Publikováno v:
In Science of the Total Environment 1 March 2024 914