Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Hulet, R. G."'
Autor:
Lode, A. U. J., Tsatsos, M. C., Kevrekidis, P. G., Telles, G. D., Luo, D., Hulet, R. G., Bagnato, V. S.
Granulation of quantum matter -- the formation of persistent small-scale patterns -- is realized in the images of quasi-one-dimensional Bose-Einstein condensates perturbed by a periodically modulated interaction. Our present analysis of a mean-field
Externí odkaz:
http://arxiv.org/abs/2103.07479
Autor:
Luo, De, Jin, Yi, Nguyen, Jason H. V., Malomed, Boris A., Marchukov, Oleksandr V., Yurovsky, Vladimir A., Dunjko, Vanja, Olshanii, Maxim, Hulet, R. G.
Publikováno v:
Phys. Rev. Lett. 125, 183902 (2020)
We report the creation of quasi-1D excited matter-wave solitons, "breathers", by quenching the strength of the interactions in a Bose-Einstein condensate with attractive interactions. We characterize the resulting breathing dynamics and quantify the
Externí odkaz:
http://arxiv.org/abs/2007.03766
Autor:
Yang, T. L., Grišins, P., Chang, Y. T., Zhao, Z. H., Shih, C. Y., Giamarchi, T., Hulet, R. G.
Publikováno v:
Phys. Rev. Lett. 121, 103001 (2018)
We present measurements of the dynamical structure factor $S(q,\omega)$ of an interacting one-dimensional (1D) Fermi gas for small excitation energies. We use the two lowest hyperfine levels of the $^6$Li atom to form a pseudo-spin-1/2 system whose s
Externí odkaz:
http://arxiv.org/abs/1803.06331
Autor:
Nguyen, J. H. V., Tsatsos, M. C., Luo, D., Lode, A. U. J., Telles, G. D., Bagnato, V. S., Hulet, R. G.
Publikováno v:
Phys. Rev. X 9, 011052 (2019)
We explore, both experimentally and theoretically, the response of an elongated Bose-Einstein condensate to modulated interactions. We identify two distinct regimes differing in modulation frequency and modulation strength. Longitudinal surface waves
Externí odkaz:
http://arxiv.org/abs/1707.04055
We have measured the binding energy of $^7$Li Feshbach molecules deep into the non-universal regime by associating free atoms in a Bose-Einstein condensate by modulating the magnetic field. We extract the scattering length from these measurements, co
Externí odkaz:
http://arxiv.org/abs/1302.0281
Publikováno v:
New J. Phys. 15 (2013) 063006
The interaction of matter-wave solitons with a potential barrier is a fundamentally important problem, and the splitting and subsequent recombination of the soliton by the barrier is the essence of soliton matter-wave interferometry. We demonstrate t
Externí odkaz:
http://arxiv.org/abs/1301.3959
Autor:
Duarte, P. M., Hart, R. A., Hitchcock, J. M., Corcovilos, T. A., Yang, T. -L., Reed, A., Hulet, R. G.
Publikováno v:
Phys. Rev. A 84, 061406(R) (2011)
We have used the narrow $2S_{1/2} \rightarrow 3P_{3/2}$ transition in the ultraviolet (uv) to laser cool and magneto-optically trap (MOT) $^6$Li atoms. Laser cooling of lithium is usually performed on the $2S_{1/2} \rightarrow 2P_{3/2}$ (D2) transiti
Externí odkaz:
http://arxiv.org/abs/1109.6635
Autor:
Liao, Y. A., Revelle, M., Paprotta, T., Rittner, A. S. C., Li, Wenhui, Partridge, G. B., Hulet, R. G.
Publikováno v:
Physics Review Letters 107, 145305 (2011)
We study the role of particle transport and evaporation on the phase separation of an ultracold, spin-polarized atomic Fermi gas. We show that the previously observed deformation of the superfluid paired core is a result of evaporative depolarization
Externí odkaz:
http://arxiv.org/abs/1105.6369
Autor:
Pollack, S. E., Dries, D., Hulet, R. G., Magalhaes, K. M. F., Henn, E. A. L., Ramos, E. R. F., Caracanhas, M. A., Bagnato, V. S.
Publikováno v:
Phys. Rev. A 82, 020701(R) (2010) [4 pages]
We excite the lowest-lying quadrupole mode of a Bose-Einstein condensate by modulating the atomic scattering length via a Feshbach resonance. Excitation occurs at various modulation frequencies, and resonances located at the natural quadrupole freque
Externí odkaz:
http://arxiv.org/abs/1004.2887
We investigate the effects of impurities, either correlated disorder or a single Gaussian defect, on the collective dipole motion of a Bose-Einstein condensate of $^7$Li in an optical trap. We find that this motion is damped at a rate dependent on th
Externí odkaz:
http://arxiv.org/abs/1004.1891