Zobrazeno 1 - 10
of 774
pro vyhledávání: '"Marechal E"'
Autor:
Bataille, P., Litvinov, A., Manai, I., Huckans, J., Wiotte, F., Kaladjian, A., Gorceix, O., Maréchal, E., Laburthe-Tolra, B., Robert-de-Saint-Vincent, M.
Publikováno v:
Phys. Rev. A 102, 013317 (2020)
We introduce a spin-orbit coupling scheme, where a retro-reflected laser beam selectively diffracts two spin components in opposite directions. Spin sensitivity is provided by sweeping through a magnetic-field sensitive transition while dark states e
Externí odkaz:
http://arxiv.org/abs/2003.13444
Autor:
Manai, I., Molineri, A., Fréjaville, C., Duval, C., Bataille, P., Journet, R., Wiotte, F., Laburthe-Tolra, B., Maréchal, E., Cheneau, M., Robert-de-Saint-Vincent, M.
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 53 085005 (2020)
We present a spectroscopy scheme for the 7-kHz-wide 689-nm intercombination line of strontium. We rely on shelving detection, where electrons are first excited to a metastable state by the spectroscopy laser before their state is probed using the bro
Externí odkaz:
http://arxiv.org/abs/1910.11718
Autor:
Lepoutre, S., Gabardos, L., Kechadi, K., Pedri, P., Gorceix, O., Marechal, E., Vernac, L., Laburthe-Tolra, B.
Publikováno v:
Phys. Rev. Lett. 121, 013201 (2018)
We report on the observation of a collective spin mode in a spinor Bose-Einstein condensate. Initially, all spins point perpendicular to the external magnetic field. The lowest energy mode consists in a sinusoidal oscillation of the local spin around
Externí odkaz:
http://arxiv.org/abs/1804.10254
Autor:
Lepoutre, S., Schachenmayer, J., Gabardos, L., Zhu, B., Naylor, B., Marechal, E., Gorceix, O., Rey, A. M., Vernac, L., Laburthe-Tolra, B.
Understanding quantum thermalization through entanglement build-up in isolated quantum systems addresses fundamental questions on how unitary dynamics connects to statistical physics. Here, we study the spin dynamics and approach towards local therma
Externí odkaz:
http://arxiv.org/abs/1803.02628
Autor:
Huckans, J., Dubosclard, W., Maréchal, E., Gorceix, O., Laburthe-Tolra, B., Robert-de-Saint-Vincent, M.
The high chemical reactivity of strontium, which can opacify a viewport exposed to a strontium atomic source, is a concern for some atomic physics experiments where it is sometimes necessary to send a laser beam counter-propagating relative to the at
Externí odkaz:
http://arxiv.org/abs/1802.08499
We report on the production of a degenerate Fermi gas of 53Cr atoms, polarized in the state F=9/2, m_F=-9/2, by sympathetic cooling with bosonic S=3, m_S=-3 52Cr atoms. We load in an optical dipole trap 3.10^4 53Cr atoms with 10^6 52Cr atoms. Despite
Externí odkaz:
http://arxiv.org/abs/1411.4634
Autor:
de Paz, A., Naylor, B., Carrance, J. Huckans A., Gorceix, O., Marechal, E., Pedri, P., Laburthe-Tolra, B., Vernac, L.
We experimentally study the spin dynamics of mesoscopic ensembles of ultracold magnetic spin-3 atoms located in two separated wells of an optical dipole trap. We use a radio-frequency sweep to selectively flip the spin of the atoms in one of the well
Externí odkaz:
http://arxiv.org/abs/1407.8130
We study dipolar relaxation of a chromium BEC loaded into a 3D optical lattice. We observe dipolar relaxation resonances when the magnetic energy released during the inelastic collision matches an excitation towards higher energy bands. A spectroscop
Externí odkaz:
http://arxiv.org/abs/1212.5469
We measure the excitation spectrum of a dipolar Chromium Bose Einstein Condensate with Raman-Bragg spectroscopy. The energy spectrum depends on the orientation of the dipoles with respect to the excitation momentum, demonstrating an anisotropy which
Externí odkaz:
http://arxiv.org/abs/1205.6305
We study thermodynamic properties of a gas of spin 3 52Cr atoms across Bose Einstein condensation. Magnetization is free, due to dipole-dipole interactions (DDIs). We show that the critical temperature for condensation is lowered at extremely low mag
Externí odkaz:
http://arxiv.org/abs/1110.0786