Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Tavares, P. E. S."'
Autor:
García-Orozco, A. D., Madeira, L., Moreno-Armijos, M. A., Fritsch, A. R., Tavares, P. E. S., Castilho, P. C. M., Cidrim, A., Roati, G., Bagnato, V. S.
Publikováno v:
Phys. Rev. A 106, 023314 (2022)
We study the emergence of universal scaling in the time-evolving momentum distribution of a harmonically trapped three-dimensional Bose-Einstein condensate, parametrically driven to a turbulent state. We demonstrate that the out-of-equilibrium dynami
Externí odkaz:
http://arxiv.org/abs/2107.07421
Autor:
Scazza, F., Valtolina, G., Amico, A., Tavares, P. E. S., Inguscio, M., Ketterle, W., Roati, G., Zaccanti, M.
Publikováno v:
Phys. Rev. A 101, 013603 (2020)
Recent experiments have revitalized the interest in a Fermi gas of ultracold atoms with strong repulsive interactions. In spite of its seeming simplicity, this system exhibits a complex behavior, resulting from the competing action of two distinct in
Externí odkaz:
http://arxiv.org/abs/1910.14279
Autor:
Amico, A., Scazza, F., Valtolina, G., Tavares, P. E. S., Ketterle, W., Inguscio, M., Roati, G., Zaccanti, M.
Publikováno v:
Phys. Rev. Lett. 121, 253602 (2018)
We exploit a time-resolved pump-probe spectroscopic technique to study the out-of-equilibrium dynamics of an ultracold two-component Fermi gas, selectively quenched to strong repulsion along the upper branch of a broad Feshbach resonance. For critica
Externí odkaz:
http://arxiv.org/abs/1807.10208
Autor:
Fritsch, A. R., Tavares, P. E. S., Vivanco, F. A. J., Telles, G. D., Bagnato, V. S., Henn, E. A. L.
Publikováno v:
J. Stat. Mech. (2018) 053108
We present an alternative method for determining the sound velocity in atomic Bose-Einstein condensates, based on thermodynamic global variables. The total number of trapped atoms was as a function of temperature carefully studied across the phase tr
Externí odkaz:
http://arxiv.org/abs/1606.06410
Autor:
Tavares, Pedro E. S., Fritsch, Amilson R., Telles, Gustavo D., Hussein, Mahir S., Impens, François, Kaiser, Robin, Bagnato, Vanderlei S.
Publikováno v:
PNAS 114 (48), 12691-12695 (2017)
We report the results of a direct comparison of a freely expanding turbulent Bose-Einstein condensate and the propagation of an optical speckle pattern. We found remarkably similar statistical properties underlying the spatial propagation of both phe
Externí odkaz:
http://arxiv.org/abs/1606.01589
Autor:
Tsatsos, Marios C., Tavares, Pedro E. S., Cidrim, Andre, Fritsch, Amilson R., Caracanhas, Monica A., Santos, F. Ednilson A. dos, Barenghi, Carlo F., Bagnato, Vanderlei S.
Publikováno v:
Physics Reports 622 (2016) 1-52
Turbulence, the complicated fluid behavior of nonlinear and statistical nature, arises in many physical systems across various disciplines, from tiny laboratory scales to geophysical and astrophysical ones. The notion of turbulence in the quantum wor
Externí odkaz:
http://arxiv.org/abs/1512.05262
Autor:
Bahrami, A., Tavares, P. E. S, Fritsch, A. R., Tonin, Y. R., Telles, G. D., Bagnato, V. S., Henn, E. A. L.
Publikováno v:
J. Low Temp. Phys. 180, 1292 (2015)
We investigate the evolution of the momentum distribution of a Bose-Einstein condensate subjected to an external small oscillatory perturbation as a function of the in-trap evolution of the condensate after the external perturbation is switched-off.
Externí odkaz:
http://arxiv.org/abs/1505.00657
Autor:
Fritsch, A. R., Tavares, P. E. S., Tonin, Y. R., Bahrami, A., Henn, E. A. L., Bagnato, V. S., Telles, G. D.
Publikováno v:
J. Low Temp. Phys. 180, 1307 (2015)
We report the experimental observation of the collective excitations induced in a magnetically trapped 87Rb Bose-Einstein condensate. Low-lying mode excitations were studied by tracking the condensate's center-of-mass displacement, and its aspect rat
Externí odkaz:
http://arxiv.org/abs/1505.00661
Autor:
Telles, G. D., Tavares, P. E. S., Fritsch, A. R., Cidrim, A., Bagnato, V. S., White, A. C., Allen, A. J., Barenghi, C. F.
We report the observation of the twisted decay of quadruply charged vortices in an atomic Bose-Einstein condensate. Supporting numerical simulations show that the singly-charged vortices, which result from the decay of a multi-charged vortex, twist a
Externí odkaz:
http://arxiv.org/abs/1505.00616
Autor:
Tavares, P. E. S., Telles, G. D., Shiozaki, R. F., Branco, C. Castelo, Farias, K. M., Bagnato, V. S.
Publikováno v:
Las. Phys. Lett. 10, 045501 (2013)
The vortex nucleation and the emergence of quantum turbulence induced by oscillating magnetic fields, introduced by Henn E A L, et al. 2009 (Phys. Rev. A 79, 043619) and Henn E A L, et al. 2009 (Phys. Rev. Lett. 103, 045301), left a few open question
Externí odkaz:
http://arxiv.org/abs/1207.1146