Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Roati, Giacomo"'
Autor:
Del Pace, Giulia, Hernández-Rajkov, Diego, Singh, Vijay Pal, Grani, Nicola, Fernández, Marcia Frómeta, Nesti, Giulio, Seman, Jorge Amin, Inguscio, Massimo, Amico, Luigi, Roati, Giacomo
We report the observation of Shapiro steps in a periodically driven Josephson junction between strongly-interacting Fermi superfluids of ultracold atoms. We observe quantized plateaus in the current-potential characteristics, the height and width of
Externí odkaz:
http://arxiv.org/abs/2409.03448
Autor:
Pezzè, Luca, Xhani, Klejdja, Daix, Cyprien, Grani, Nicola, Donelli, Beatrice, Scazza, Francesco, Hernandez-Rajkov, Diego, Kwon, Woo Jin, Del Pace, Giulia, Roati, Giacomo
Arrays of Josephson junctions are at the forefront of research on quantum circuitry for quantum computing, simulation and metrology. They provide a testing bed for exploring a variety of fundamental physical effects where macroscopic phase coherence,
Externí odkaz:
http://arxiv.org/abs/2311.05523
Publikováno v:
Atoms 2023, 11(8), 109
We investigate the role of vortices in the decay of persistent current states of annular atomic superfluids by solving numerically the Gross-Pitaevskii equation, and we directly compare our results with experimental data from Ref. [1]. We theoretical
Externí odkaz:
http://arxiv.org/abs/2306.11645
Autor:
Trombettoni, Andrea, Scazza, Francesco, Minardi, Francesco, Roati, Giacomo, Cappelli, Francesco, Consolino, Luigi, Smerzi, Augusto, De Natale, Paolo
Publikováno v:
Adv. Quantum Technol. 2021, 2100044
We propose to use ultracold fermionic atoms in one-dimensional optical lattices to quantum simulate the electronic transport in quantum cascade laser (QCL) structures. The competition between the coherent tunneling among (and within) the wells and th
Externí odkaz:
http://arxiv.org/abs/2104.12843
Akademický článek
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Autor:
Rosi, Sara, Burchianti, Alessia, Conclave, Stefano, Naik, Devang S., Roati, Giacomo, Fort, Chiara, Minardi, Francesco
Publikováno v:
Scientific Reports 8, (2018) 1031
Laser cooling based on dark states, i.e. states decoupled from light, has proven to be effective to increase the phase-space density of cold trapped atoms. Dark-states cooling requires open atomic transitions, in contrast to the ordinary laser coolin
Externí odkaz:
http://arxiv.org/abs/1709.06467
Autor:
Landini, Manuele, Roy, Sanjukta, Roati, Giacomo, Simoni, Andrea, Inguscio, Massimo, Modugno, Giovanni, Fattori, Marco
We report the realization of Bose-Einstein condensates of 39K atoms without the aid of an additional atomic coolant. Our route to Bose-Einstein condensation comprises Sub Doppler laser cooling of large atomic clouds with more than 10^10 atoms and eva
Externí odkaz:
http://arxiv.org/abs/1207.4713
Publikováno v:
Nature 472, 201-204 (2011)
Transport of fermions is central in many fields of physics. Electron transport runs modern technology, defining states of matter such as superconductors and insulators, and electron spin, rather than charge, is being explored as a new carrier of info
Externí odkaz:
http://arxiv.org/abs/1101.0780
Autor:
Fattori, Marco, D'Errico, Chiara, Roati, Giacomo, Zaccanti, Matteo, Jona-Lasinio, Mattia, Modugno, Michele, Inguscio, Massimo, Modugno, Giovanni
Publikováno v:
Phys. Rev. Lett. 100, 080405 (2008)
We demonstrate the operation of an atom interferometer based on a weakly interacting Bose-Einstein condensate. We strongly reduce the interaction induced decoherence that usually limits interferometers based on trapped condensates by tuning the s-wav
Externí odkaz:
http://arxiv.org/abs/0710.5131
Autor:
Ferlaino, Francesca, D'Errico, Chiara, Roati, Giacomo, Zaccanti, Matteo, Inguscio, Massimo, Modugno, Giovanni, Simoni, Andrea
Publikováno v:
Phys. Rev. A 73, 040702(R) (2006) and Erratum
We perform extensive magnetic Feshbach spectroscopy of an ultracold mixture of fermionic 40K and bosonic 87Rb atoms. The magnetic-field locations of 14 interspecies resonances is used to construct a quantum collision model able to predict accurate co
Externí odkaz:
http://arxiv.org/abs/cond-mat/0510630