Zobrazeno 1 - 10
of 347
pro vyhledávání: '"Petter D"'
Autor:
Patscheider, A., Chomaz, L., Natale, G., Petter, D., Mark, M. J., Baier, S., Yang, B., Wang, R. R. W., Bohn, J. L., Ferlaino, F.
An accurate knowledge of the scattering length is fundamental in ultracold quantum gas experiments and essential for the characterisation of the system as well as for a meaningful comparison to theoretical models. Here, we perform a careful character
Externí odkaz:
http://arxiv.org/abs/2112.11883
Autor:
Patscheider, A., Yang, B., Natale, G., Petter, D., Chomaz, L., Mark, M. J., Hovhannesyan, G., Lepers, M., Ferlaino, F.
Publikováno v:
Phys. Rev. Research 3, 033256 (2021)
We report on the observation and coherent excitation of atoms on the narrow inner-shell orbital transition, connecting the erbium ground state $[\mathrm{Xe}] 4f^{12} (^3\text{H}_6)6s^{2}$ to the excited state $[\mathrm{Xe}] 4f^{11}(^4\text{I}_{15/2})
Externí odkaz:
http://arxiv.org/abs/2105.01438
Autor:
Petter, D., Patscheider, A., Natale, G., Mark, M. J., Baranov, M. A., Bijnen, R. v., Roccuzzo, S. M., Recati, A., Blakie, B., Baillie, D., Chomaz, L., Ferlaino, F.
Publikováno v:
Phys. Rev. A 104, 011302 (2021)
We present an experimental and theoretical study of the high-energy excitation spectra of a dipolar supersolid. Using Bragg spectroscopy, we study the scattering response of the system to a high-energy probe, enabling measurements of the dynamic stru
Externí odkaz:
http://arxiv.org/abs/2005.02213
Autor:
Natale, G., van Bijnen, R. M. W., Patscheider, A., Petter, D., Mark, M. J., Chomaz, L., Ferlaino, F.
Publikováno v:
Phys. Rev. Lett. 123, 050402 (2019)
We study the spectrum of elementary excitations of a dipolar Bose gas in a three-dimensional anisotropic trap across the superfluid-supersolid phase transition. Theoretically, we show that, when entering the supersolid phase, two distinct excitation
Externí odkaz:
http://arxiv.org/abs/1907.01986
Autor:
Patscheider, A., Zhu, B., Chomaz, L., Petter, D., Baier, S., Rey, A. M., Ferlaino, F., Mark, M. J.
Publikováno v:
Phys. Rev. Research 2, 023050 (2020)
Dipolar interactions are ubiquitous in nature and rule the behavior of a broad range of systems spanning from energy transfer in biological systems to quantum magnetism. Here, we study magnetization-conserving dipolar induced spin-exchange dynamics i
Externí odkaz:
http://arxiv.org/abs/1904.08262
Autor:
Chomaz, L., Petter, D., Ilzhöfer, P., Natale, G., Trautmann, A., Politi, C., Durastante, G., van Bijnen, R. M. W., Patscheider, A., Sohmen, M., Mark, M. J., Ferlaino, F.
Publikováno v:
Phys. Rev. X 9, 021012 (2019)
By combining theory and experiments, we demonstrate that dipolar quantum gases of both $^{166}$Er and $^{164}$Dy support a state with supersolid properties, where a spontaneous density modulation and a global phase coherence coexist. This paradoxical
Externí odkaz:
http://arxiv.org/abs/1903.04375
Autor:
Petter, D., Natale, G., van Bijnen, R. M. W., Patscheider, A., Mark, M. J., Chomaz, L., Ferlaino, F.
Publikováno v:
Phys. Rev. Lett. 122, 183401 (2019)
We measure the excitation spectrum of a stable dipolar Bose--Einstein condensate over a wide momentum-range via Bragg spectroscopy. We precisely control the relative strength, $\epsilon_{\rm dd}$, of the dipolar to the contact interactions and observ
Externí odkaz:
http://arxiv.org/abs/1811.12115
Autor:
Baier, S., Petter, D., Becher, J. H., Patscheider, A., Natale, G., Chomaz, L., Mark, M. J., Ferlaino, F.
Publikováno v:
Phys. Rev. Lett. 121, 093602 (2018)
We realize a two-component dipolar Fermi gas with tunable interactions, using erbium atoms. Employing a lattice-protection technique, we selectively prepare deeply degenerate mixtures of the two lowest spin states and perform high-resolution Feshbach
Externí odkaz:
http://arxiv.org/abs/1803.11445
Publikováno v:
Phys. Rev. X 6, 041039 (2016)
In a joint experimental and theoretical effort, we report on the formation of a macro-droplet state in an ultracold bosonic gas of erbium atoms with strong dipolar interactions. By precise tuning of the s-wave scattering length below the so-called di
Externí odkaz:
http://arxiv.org/abs/1607.06613