Zobrazeno 1 - 10
of 1 029
pro vyhledávání: '"Allegrini M"'
The spectroscopic hyperfine constants for all the alkali atoms are reported. For atoms from lithium to cesium, only the long lived atomic isotopes are examined. For francium, the measured data for nuclear ground states of all available isotopes are l
Externí odkaz:
http://arxiv.org/abs/2209.11423
Autor:
Viteau, M., Reveillard, M., Kime, L., Rasser, B., Sudraud, P., Bruneau, Y., Khalili, G., Pillet, P., Comparat, D., Guerri, I., Fioretti, A., Ciampini, D., Allegrini, M., Fuso, F.
We demonstrate a prototype of a Focused Ion Beam machine based on the ionization of a laser-cooled cesium beam adapted for imaging and modifying different surfaces in the few-tens nanometer range. Efficient atomic ionization is obtained by laser prom
Externí odkaz:
http://arxiv.org/abs/1601.01446
Autor:
Di Virgilio, A., Allegrini, M., Beghi, A., Belfi, J., Beverini, N., Bosi, F., Bouhadef, B., Calamai, M., Carelli, G., Cuccato, D., Maccioni, E., Ortolan, A., Passeggio, G., Porzio, A., Ruggiero, M. L., Santagata, R., Tartaglia, A.
Publikováno v:
Comptes Rendus Physique, Volume 15, Issue 10, December 2014, Pages 866-874
After reviewing the importance of light as a probe for testing the structure of space-time, we describe the GINGER project. GINGER will be a three-dimensional array of large size ring-lasers able to measure the de Sitter and Lense-Thirring effects. T
Externí odkaz:
http://arxiv.org/abs/1412.6901
Autor:
Beverini, N, Allegrini, M, Beghi, A, Belfi, J, Bouhadef, B., Calamai, M, Carelli, G, Cuccato, D, Di Virgilio, A, Maccioni, E, Ortolan, A, Porzio, A., Santagata, R, Solimeno, S, Tartaglia, A
GINGER is a proposed tridimensional array of laser gyroscopes with the aim of measuring the Lense-Thirring effect, predicted by the General Relativity theory, in a terrestrial laboratory environment. We discuss the required accuracy, the methods to a
Externí odkaz:
http://arxiv.org/abs/1310.2022
Autor:
Manai, I., Horchani, R., Hamamda, M., Fioretti, A., Allegrini, M., Lignier, H., Pillet, P., Comparat, D.
We have recently demonstrated that optical pumping methods combined with photoassociation of ultra-cold atoms can produce ultra-cold and dense samples of molecules in their absolute rovibronic ground state. More generally, both the external and inter
Externí odkaz:
http://arxiv.org/abs/1306.3461
Publikováno v:
Phys. Rev. Lett. 109, 183001 (2012)
We demonstrate rotational and vibrational cooling of cesium dimers by optical pumping techniques. We use two laser sources exciting all the populated rovibrational states, except a target state that thus behaves like a dark state where molecules pile
Externí odkaz:
http://arxiv.org/abs/1211.2652
Autor:
Bosi, F., Cella, G., Di Virgilio, A., Ortolan, A., Porzio, A., Solimeno, S., Cerdonio, M., Zendri, J. P., Allegrini, M., Belfi, J., Beverini, N., Bouhadef, B., Carelli, l G., Ferrante, I., Maccioni, E., Passaquieti, R., Stefani, F., Ruggiero, M. L., Tartaglia, A., Schreiber, K. U., Gebauer, A., Wells, J-P. R.
Publikováno v:
Phys. Rev. D 84, 122002 (2011)
We propose an under-ground experiment to detect the general relativistic effects due to the curvature of space-time around the Earth (de Sitter effect) and to rotation of the planet (dragging of the inertial frames or Lense-Thirring effect). It is ba
Externí odkaz:
http://arxiv.org/abs/1106.5072
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