Zobrazeno 1 - 10
of 215
pro vyhledávání: '"Jin, D. S."'
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
Autor:
Neyenhuis, B., Yan, B., Moses, S. A., Covey, J. P., Chotia, A., Petrov, A., Kotochigova, S., Ye, J., Jin, D. S.
Publikováno v:
Phys. Rev. Lett. 109, 230403 (2012)
We report the measurement of the anisotropic AC polarizability of ultracold polar $^{40}$K$^{87}$Rb molecules in the ground and first rotationally excited states. Theoretical analysis of the polarizability agrees well with experimental findings. Alth
Externí odkaz:
http://arxiv.org/abs/1209.2226
The ideal (i.e. noninteracting), homogeneous Fermi gas, with its characteristic sharp Fermi surface in the momentum distribution, is a fundamental concept relevant to the behavior of many systems. With trapped Fermi gases of ultracold atoms, one can
Externí odkaz:
http://arxiv.org/abs/1204.0048
Publikováno v:
Phys. Rev. Lett. 108, 145305 (2012)
A powerful set of universal relations, centered on a quantity called the contact, connects the strength of short-range two-body correlations to the thermodynamics of a many-body system with delta-function interactions. We report on measurements of th
Externí odkaz:
http://arxiv.org/abs/1112.0362
We demonstrate a photon-counting technique for detecting Bragg excitation of an ultracold gas of atoms. By measuring the response of the light field to the atoms, we derive a signal independent of traditional time-of-flight atom-imaging techniques. W
Externí odkaz:
http://arxiv.org/abs/1012.1574
Autor:
de Miranda, M. H. G., Chotia, A., Neyenhuis, B., Wang, D., Quemener, G., Ospelkaus, S., Bohn, J. L., Ye, J., Jin, D. S.
Publikováno v:
Nature Phys. 7, 502 - 507 (2011)
Chemical reaction rates often depend strongly on stereodynamics, namely the orientation and movement of molecules in three-dimensional space. An ultracold molecular gas, with a temperature below 1 uK, provides a highly unusual regime for chemistry, w
Externí odkaz:
http://arxiv.org/abs/1010.3731
Autor:
Perali, A., Palestini, F., Pieri, P., Strinati, G. C., Stewart, J. T., Gaebler, J. P., Drake, T. E., Jin, D. S.
Publikováno v:
Phys. Rev. Lett. 106, 060402 (2011)
Wave-vector resolved radio frequency (rf) spectroscopy data for an ultracold trapped Fermi gas are reported for several couplings at Tc, and extensively analyzed in terms of a pairing-fluctuation theory. We map the evolution of a strongly interacting
Externí odkaz:
http://arxiv.org/abs/1006.3406
Publikováno v:
Phys. Rev. A 81, 061404(R) (2010)
We demonstrate a scheme for direct absorption imaging of an ultracold ground-state polar molecular gas near quantum degeneracy. A challenge in imaging molecules is the lack of closed optical cycling transitions. Our technique relies on photon shot-no
Externí odkaz:
http://arxiv.org/abs/1003.2583
Autor:
Gaebler, J. P., Stewart, J. T., Drake, T. E., Jin, D. S., Perali, A., Pieri, P., Strinati, G. C.
Publikováno v:
Nature Physics (4 July 2010) Letter
Ultracold atomic Fermi gases present an opportunity to study strongly interacting Fermi systems in a controlled and uncomplicated setting. The ability to tune attractive interactions has led to the discovery of superfluidity in these systems with an
Externí odkaz:
http://arxiv.org/abs/1003.1147
Publikováno v:
Phys. Rev. Lett. 104, 235301 (2010)
Many-body fermion systems are important in many branches of physics, including condensed matter, nuclear, and now cold atom physics. In many cases, the interactions between fermions can be approximated by a contact interaction. A recent theoretical a
Externí odkaz:
http://arxiv.org/abs/1002.1987