Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Guarrera, V"'
Autor:
Zipfel, J. D., Bevington, P., Wright, L., Chalupczak, W., Quick, G., Steele, B., Nicholson, J., Guarrera, V.
Atom spin sensors occupy a prominent position in the scenario of quantum technology, as they can combine precise measurements with appealing miniature packages which are crucial for many applications. In this work, we report on the design and realiza
Externí odkaz:
http://arxiv.org/abs/2402.16695
Collective spins in thermal gases are at the core of a multitude of science and technology applications. In most of them, the random thermal motion of the particles is considered detrimental as it is responsible for decoherence and noise. In conditio
Externí odkaz:
http://arxiv.org/abs/2402.16750
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
Publikováno v:
Phys. Rev. Research 3, 032015 (2021)
Spin noise spectroscopy is emerging as a powerful technique for studying the dynamics of various spin systems also beyond their thermal equilibrium and linear response. Here, we study spin fluctuations of room-temperature neutral atoms in a Bell-Bloo
Externí odkaz:
http://arxiv.org/abs/2012.12617
Publikováno v:
Phys. Rev. A 98, 061401(R) (2018)
Spin-exchange collisions in hot vapours are generally regarded as a decoherence mechanism. In contrast, we show that linear and non-linear spin-exchange coupling can lead to the generation of atomic coherence in a Bell-Bloom magnetometer. In particul
Externí odkaz:
http://arxiv.org/abs/1903.05605
Publikováno v:
Phys. Rev. Lett. 123, 033601 (2019)
We report on the use of parametric excitation to coherently manipulate the collective spin state of an atomic vapour at room temperature. Signatures of the parametric excitation are detected in the ground-state spin evolution. These include the excit
Externí odkaz:
http://arxiv.org/abs/1903.00212
We propose a novel and robust technique to realize a beam splitter for trapped Bose-Einstein condensates (BECs). The scheme relies on the possibility of producing different potentials simultaneously for two internal atomic states. The atoms are coher
Externí odkaz:
http://arxiv.org/abs/1503.02657
Autor:
Weber, T. M., Höning, M., Niederprüm, T., Manthey, T., Thomas, O., Guarrera, V., Fleischhauer, M., Barontini, G., Ott, H.
Publikováno v:
Nature Physics 11, 157-161 (2015)
Controlling strongly interacting many-body systems enables the creation of tailored quantum matter, with properties transcending those based solely on single particle physics. Atomic ensembles which are optically driven to a Rydberg state provide man
Externí odkaz:
http://arxiv.org/abs/1407.3611
Publikováno v:
New J. Phys. 16 083034 (2014)
We report on the realization of high resolution electron microscopy of Rydberg-excited ultracold atomic samples. The implementation of an ultraviolet laser system allows us to excite the atom, with a single-photon transition, to Rydberg states. By us
Externí odkaz:
http://arxiv.org/abs/1403.1761