Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Hill, I R"'
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
Autor:
Barontini, G., Boyer, V., Calmet, X., Fitch, N. J., Forgan, E. M., Godun, R. M., Goldwin, J., Guarrera, V., Hill, I. R., Jeong, M., Keller, M., Kuipers, F., Margolis, H. S., Newman, P., Prokhorov, L., Rodewald, J., Sauer, B. E., Schioppo, M., Sherrill, N., Tarbutt, M. R., Vecchio, A., Worm, S.
Publikováno v:
Proc. SPIE 11881, Quantum Technology: Driving Commercialisation of an Enabling Science II, 118810K (2021)
The QSNET consortium is building a UK network of next-generation atomic and molecular clocks that will achieve unprecedented sensitivity in testing variations of the fine structure constant, $\alpha$, and the electron-to-proton mass ratio, $\mu$. Thi
Externí odkaz:
http://arxiv.org/abs/2110.05944
Autor:
Riedel, F., Al-Masoudi, A., Benkler, E., Dörscher, S., Gerginov, V., Grebing, C., Häfner, S., Huntemann, N., Lipphardt, B., Lisdat, C., Peik, E., Piester, D., Sanner, C., Tamm, C., Weyers, S., Denker, H., Timmen, L., Voigt, C., Calonico, D., Cerretto, G., Costanzo, G. A., Levi, F., Sesia, I., Achkar, J., Guèna, J., Abgrall, M., Rovera, D., Chupin, B., Shi, C., Bilicki, S., Bookjans, E., Lodewyck, J., Targat, R. Le, Delva, P., Bize, S., Baynes, F. N., Baynham, C. F. A., Bowden, W., Gill, P., Godun, R. M., Hill, I. R., Hobson, R., Jones, J. M., King, S. A., Nisbet-Jones, P. B. R., Rolland, A., Shemar, S. L., Whibberley, P. B., Margolis, H. S.
We carried out a 26-day comparison of five simultaneously operated optical clocks and six atomic fountain clocks located at INRIM, LNE-SYRTE, NPL and PTB by using two satellite-based frequency comparison techniques: broadband Two-Way Satellite Time a
Externí odkaz:
http://arxiv.org/abs/1910.06736
Autor:
Roberts, B. M., Delva, P., Al-Masoudi, A., Amy-Klein, A., Bærentsen, C., Baynham, C. F. A., Benkler, E., Bilicki, S., Bize, S., Bowden, W., Calvert, J., Cambier, V., Cantin, E., Curtis, E. A., Dörscher, S., Favier, M., Frank, F., Gill, P., Godun, R. M., Grosche, G., Guo, C., Hees, A., Hill, I. R., Hobson, R., Huntemann, N., Kronjäger, J., Koke, S., Kuhl, A., Lange, R., Legero, T., Lipphardt, B., Lisdat, C., Lodewyck, J., Lopez, O., Margolis, H. S., Álvarez-Martínez, H., Meynadier, F., Ozimek, F., Peik, E., Pottie, P. -E., Quintin, N., Sanner, C., De Sarlo, L., Schioppo, M., Schwarz, R., Silva, A., Sterr, U., Tamm, Chr., Targat, R. Le, Tuckey, P., Vallet, G., Waterholter, T., Xu, D., Wolf, P.
Publikováno v:
New J. Phys. 22, 093010 (2020)
We search for transient variations of the fine structure constant using data from a European network of fiber-linked optical atomic clocks. By searching for coherent variations in the recorded clock frequency comparisons across the network, we signif
Externí odkaz:
http://arxiv.org/abs/1907.02661
Autor:
Delva, P., Lodewyck, J., Bilicki, S., Bookjans, E., Vallet, G., Targat, R. Le, Pottie, P. -E., Guerlin, C., Meynadier, F., Poncin-Lafitte, C. Le, Lopez, O., Amy-Klein, A., Lee, W. -K., Quintin, N., Lisdat, C., Al-Masoudi, A., Dörscher, S., Grebing, C., Grosche, G., Kuhl, A., Raupach, S., Sterr, U., Hill, I. R., Hobson, R., Bowden, W., Kronjäger, J., Marra, G., Rolland, A., Baynes, F. N., Margolis, H. S., Gill, P.
Publikováno v:
Phys. Rev. Lett. 118, 221102 (2017)
Phase compensated optical fiber links enable high accuracy atomic clocks separated by thousands of kilometers to be compared with unprecedented statistical resolution. By searching for a daily variation of the frequency difference between four stront
Externí odkaz:
http://arxiv.org/abs/1703.04426
Autor:
Abgrall, M, Chupin, B, Uhrich, P, Lorini, L, Le Targat, R, Pointard, B, Lodewyck, J, Tunesi, J, Tran, D B A, Parsons, A O, Tofful, A, Robertson, B I, Johnson, M Y H, Feng, C-H, Schioppo, M, Curtis, E A, Hill, I R, Godun, R M, Margolis, H S
Publikováno v:
Journal of Physics: Conference Series; 2024, Vol. 2889 Issue 1, p1-5, 5p
We report the design and characterization of an optical shutter based on a piezoelectric cantilever. Compared to conventional electro-magnetic shutters, the device is intrinsically low power and acoustically quiet. The cantilever position is controll
Externí odkaz:
http://arxiv.org/abs/1609.05669
Autor:
Origlia, S., Schiller, S., Pramod, M. S., Smith, L., Singh, Y., He, W., Viswam, S., Świerad, D., Hughes, J., Bongs, K., Sterr, U., Lisdat, Ch., Vogt, S., Bize, S., Lodewyck, J., Targat, R. Le, Holleville, D., Venon, B., Gill, P., Barwood, G., Hill, I. R., Ovchinnikov, Y., Kulosa, A., Ertmer, W., Rasel, E. -M., Stuhler, J., Kaenders, W., contributors, the SOC2 consortium
The ESA mission "Space Optical Clock" project aims at operating an optical lattice clock on the ISS in approximately 2023. The scientific goals of the mission are to perform tests of fundamental physics, to enable space-assisted relativistic geodesy
Externí odkaz:
http://arxiv.org/abs/1603.06062
Publikováno v:
Phys. Rev. A 93, 010501 (2016)
We develop a method of modified hyper-Ramsey spectroscopy in optical clocks, achieving complete immunity to the frequency shifts induced by the probing fields themselves. Using particular pulse sequences with tailored phases, frequencies, and duratio
Externí odkaz:
http://arxiv.org/abs/1510.08144
Autor:
Bongs, K., Singh, Y., Smith, L., He, W., Kock, O., Swierad, D., Hughes, J., Schiller, S., Alighanbari, S., Origlia, S., Vogt, S., Sterr, U., Lisdat, Ch., Targat, R. Le, Lodewyck, J., Holleville, D., Venon, B., Bize, S., Barwood, G. P., Gill, P., Hill, I. R., Ovchinnikov, Y. B., Poli, N., Tino, G. M., Stuhler, J., Kaenders, W., team, the SOC2
Publikováno v:
Comptes Rendus Physique 16, 553-564 (2015)
Ultra-precise optical clocks in space will allow new studies in fundamental physics and astronomy. Within an European Space Agency (ESA) program, the Space Optical Clocks (SOC) project aims to install and to operate an optical lattice clock on the In
Externí odkaz:
http://arxiv.org/abs/1503.08457