The time evolution of spin-energy correlations in a very weakly interacting Fermi gas of ${}^{6}$ Li produces complex spin-density profiles, which are observed and quantitatively explained by a one-dimensional mean-field model. This system exhibits rich collective dynamics for exploring the interplay between spin, motion, Fermi statistics, and interactions in many-body systems.The time evolution of spin-energy correlations in a very weakly interacting Fermi gas of ${}^{6}$Li produces complex spin-density profiles, which are observed and quantitatively explained by a one-dimensional mean-field model. This system exhibits rich collective dynamics for exploring the interplay between spin, motion, Fermi statistics, and interactions in many-body systems.

arXiv:1812.08832Physical Review AJun 20, 201914 citations

Collective Dynamical Fermi Suppression of Optically Induced Inelastic Scattering

Camen A. Royse, J. Huang, John E. Thomas

We observe strong dynamical suppression of optically induced loss in a weakly interacting Fermi gas as the s-wave scattering length is increased. A single trapped cigar-shaped cloud behaves as a large spin lattice in energy space with a tunable Heisenberg Hamiltonian. The loss suppression occurs as the lattice transitions into a magnetized state, where the fermionic nature of the atoms inhibits interactions. The data are quantitatively explained by incorporating spin-dependent loss into a quasiclassical collective spin vector model, the success of which enables the application of optical control of effective long-range interactions to this system.We observe strong dynamical suppression of optically induced loss in a weakly interacting Fermi gas as the s-wave scattering length is increased. A single trapped cigar-shaped cloud behaves as a large spin lattice in energy space with a tunable Heisenberg Hamiltonian. The loss suppression occurs as the lattice transitions into a magnetized state, where the fermionic nature of the atoms inhibits interactions. The data are quantitatively explained by incorporating spin-dependent loss into a quasiclassical collective spin vector model, the success of which enables the application of optical control of effective long-range interactions to this system.

arXiv:2401.15162Physical Review LettersAug 20, 20242 citations

Universal spin dynamics in two-dimensional Fermi gases

Marco Koschorreck, Daniel Pertot, Enrico Vogt +1 more

arXiv:1304.4980Nature PhysicsMay 24, 2013105 citations

Spin Transport in a Strongly Interacting Fermi Gas

Ariel Sommer, André Schirotzek, Mark Ku +1 more

Bulletin of the American Physical SocietyMay 27, 20100 citations

The time evolution of spin-energy correlations in a very weakly interacting Fermi gas of

{}^{6}

Li produces complex spin-density profiles, which are observed and quantitatively explained by a one-dimensional mean-field model. This system exhibits rich collective dynamics for exploring the interplay between spin, motion, Fermi statistics, and interactions in many-body systems.