How tightly is the nuclear symmetry energy constrained by a unitary Fermi gas?
نویسندگان
چکیده
منابع مشابه
Damping of a unitary Fermi gas.
We measure the temperature dependence of the radial breathing mode in an optically trapped, unitary Fermi gas of 6Li, just above the center of a broad Feshbach resonance. The damping rate reveals a clear change in behavior which we interpret as arising from a superfluid transition. We suggest pair breaking as a mechanism for an increase in the damping rate which occurs at temperatures well abov...
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By selectively probing the center of a trapped gas, we measure the local, or homogeneous, contact of a unitary Fermi gas as a function of temperature. Tan's contact, C, is proportional to the derivative of the energy with respect to the interaction strength and is thus an essential thermodynamic quantity for a gas with short-range correlations. Theoretical predictions for the temperature depend...
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The physics of atomic quantum gases is currently taking advantage of a powerful tool, the possibility to fully adjust the interaction strength between atoms using a magnetically controlled Feshbach resonance. For fermions with two internal states, formally two opposite spin states ↑ and ↓, this allows to prepare long lived strongly interacting three-dimensional gases and to study the BEC-BCS cr...
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Within the framework of the mean-field-hydrodynamic model of a degenerate Fermi gas (DFG), we study, by means of numerical methods and variational approximation (VA), the formation of fundamental gap solitons (FGSs) in a DFG (or in a BCS superfluid generated by weak interaction between spin-up and spin-down fermions), which is trapped in a periodic opticallattice (OL) potential. An effectively ...
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ژورنال
عنوان ژورنال: Nuclear Science and Techniques
سال: 2017
ISSN: 1001-8042,2210-3147
DOI: 10.1007/s41365-017-0336-2