Zobrazeno 1 - 10
of 1 503
pro vyhledávání: '"Aikawa, K."'
Autor:
Kamba, M., Aikawa, K.
We demonstrate time-of-flight measurements for an ultracold levitated nanoparticle and reveal its velocity for the translational motion brought to the quantum ground state. We discover that the velocity distributions obtained with repeated release-an
Externí odkaz:
http://arxiv.org/abs/2306.16598
We demonstrate feedback cooling of all the angular motions of a near-spherical neutral nanoparticle with all the translational motions feedback-cooled to near the ground state. The occupation numbers of the three translational motions are $6 \pm 1$,
Externí odkaz:
http://arxiv.org/abs/2303.02831
Publikováno v:
Phys. Rev. A 103, 051701 (2021)
We report on direct feedback cooling of single nanoparticles in an optical lattice to near their motional ground state. We find that the laser phase noise triggers severe heating of nanoparticles' motion along the optical lattice. When the laser phas
Externí odkaz:
http://arxiv.org/abs/2011.12507
Publikováno v:
Phys. Rev. A 99, 051401 (2019)
We demonstrate feedback cooling of the center-of-mass motion of single charged nanoparticles to millikelvin temperatures in three dimensions via applying oscillating electric fields synchronized to their optically observed motion. The observed motion
Externí odkaz:
http://arxiv.org/abs/1812.01230
Autor:
Yoneda, M., Aikawa, K.
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics,50, 245501 (2017)
We show that at low pressures the spectral widths of the power spectra of laser-trapped particles are nearly independent from pressures and, due to the nonlinearities of the trap, reflect the thermal distribution of particles. In the experiments with
Externí odkaz:
http://arxiv.org/abs/1708.07572
Autor:
Baier, S., Mark, M. J., Petter, D., Aikawa, K., Chomaz, L., Cai, Zi, Baranov, M., Zoller, P., Ferlaino, F.
Publikováno v:
Science 352, 201-205 (2016)
The Hubbard model underlies our understanding of strongly correlated materials. While its standard form only comprises interaction between particles at the same lattice site, its extension to encompass long-range interaction, which activates terms ac
Externí odkaz:
http://arxiv.org/abs/1507.03500
Autor:
Maier, T., Kadau, H., Schmitt, M., Wenzel, M., Ferrier-Barbut, I., Pfau, T., Frisch, A., Baier, S., Aikawa, K., Chomaz, L., Mark, M. J., Ferlaino, F., Makrides, C., Tiesinga, E., Petrov, A., Kotochigova, S.
Publikováno v:
Phys. Rev. X 5, 041029 (2015)
We show that for ultracold magnetic lanthanide atoms chaotic scattering emerges due to a combination of anisotropic interaction potentials and Zeeman coupling under an external magnetic field. This scattering is studied in a collaborative experimenta
Externí odkaz:
http://arxiv.org/abs/1506.05221
Autor:
Frisch, A., Mark, M., Aikawa, K., Baier, S., Grimm, R., Petrov, A., Kotochigova, S., Quéméner, G., Lepers, M., Dulieu, O., Ferlaino, F.
Publikováno v:
Phys. Rev. Lett. 115, 203201 (2015)
In a combined experimental and theoretical effort, we demonstrate a novel type of dipolar system made of ultracold bosonic dipolar molecules with large magnetic dipole moments. Our dipolar molecules are formed in weakly bound Feshbach molecular state
Externí odkaz:
http://arxiv.org/abs/1504.04578
Publikováno v:
Science 345, 1484 (2014)
The deformation of a Fermi surface is a fundamental phenomenon leading to a plethora of exotic quantum phases. Understanding these phases, which play crucial roles in a wealth of systems, is a major challenge in atomic and condensed-matter physics. H
Externí odkaz:
http://arxiv.org/abs/1405.2154
Autor:
Aikawa, K., Frisch, A., Mark, M., Baier, S., Grimm, R., Bohn, J. L., Jin, D. S., Bruun, G. M., Ferlaino, F.
Publikováno v:
Phys. Rev. Lett. 113, 263201 (2014)
We report on the observation of a large anisotropy in the rethermalization dynamics of an ultracold dipolar Fermi gas driven out of equilibrium. Our system consists of an ultracold sample of strongly magnetic $^{167}$Er fermions, spin-polarized in th
Externí odkaz:
http://arxiv.org/abs/1405.1537