Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Hemmer, S. L."'
Publikováno v:
Phys. Rev. Lett. 92, 150402 (2004)
We observe collective oscillations of a trapped, degenerate Fermi gas of $^6$Li atoms at a magnetic field just above a Feshbach resonance, where the two-body physics does not support a bound state. The gas exhibits a radial breathing mode at a freque
Externí odkaz:
http://arxiv.org/abs/cond-mat/0403540
We derive the elastic collision rate for a harmonically-trapped Fermi gas in the extreme unitarity limit where the s-wave scattering cross section is $\sigma (k) =4\pi/k^2$, with $\hbar k$ the relative momentum. The collision rate is given in the for
Externí odkaz:
http://arxiv.org/abs/cond-mat/0304633
A strongly-attractive, two-component Fermi gas of atoms exhibits universal behavior and should be mechanically stable as a consequence of the quantum mechanical requirement of unitarity. This requirement limits the maximum attractive force to a value
Externí odkaz:
http://arxiv.org/abs/cond-mat/0212499
Publikováno v:
Science Dec 13 2002: 2179-2182
We report on the observation of a highly-degenerate, strongly-interacting Fermi gas of atoms. Fermionic $^6$Li atoms in an optical trap are evaporatively cooled to degeneracy using a magnetic field to induce strong, resonant interactions. Upon abrupt
Externí odkaz:
http://arxiv.org/abs/cond-mat/0212463
Autor:
O'Hara, K. M., Hemmer, S. L., Granade, S. R., Gehm, M. E., Thomas, J. E., Venturi, V., Tiesinga, E., Williams, C. J.
We measure a zero crossing in the scattering length of a mixture of the two lowest hyperfine states of 6-Li. To locate the zero crossing, we monitor the decrease in temperature and atom number arising from evaporation in a CO2 laser trap as a functio
Externí odkaz:
http://arxiv.org/abs/cond-mat/0207717
Publikováno v:
The Journal of Physical Chemistry - Part A; June 2001, Vol. 105 Issue: 25 p6020-6023, 4p
Publikováno v:
The Journal of Physical Chemistry - Part A; February 2001, Vol. 105 Issue: 5 p942-950, 9p
Autor:
Wang Z; Pacific Northwest National Laboratory, Richland, Washington 99352, USA. zheming.wang@pnl.gov, Friedrich DM, Beversluis MR, Hemmer SL, Joly AG, Huesemann MH, Truex MJ, Riley RG, Thompson CJ, Peyton BM
Publikováno v:
Environmental science & technology [Environ Sci Technol] 2001 Jul 01; Vol. 35 (13), pp. 2710-6.