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Spin transport in polaronic and superfluid Fermi gases
Published 2012“…We present measurements of spin transport in ultracold gases of fermionic 6Li in a mixture of two spin states at a Feshbach resonance. In particular, we study the spin-dipole mode, where the two spin components are displaced from each other against a harmonic restoring force. …”
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Evolution of Fermion Pairing from Three to Two Dimensions
Published 2012“…Decreasing the dimensionality leads to the opening of a gap in radio-frequency spectra, even on the Bardeen-Cooper-Schrieffer side of a Feshbach resonance. The measured binding energy of fermion pairs closely follows the theoretical two-body binding energy and, in the two-dimensional limit, the zero-temperature mean-field Bose-Einstein-condensation to Bardeen-Cooper-Schrieffer crossover theory.…”
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Formation of ultracold fermionic NaLi Feshbach molecules
Published 2012“…Precise magnetic field sweeps across a narrow Feshbach resonance at 745 G result in a molecule conversion fraction of 5% for our experimental densities and temperatures, corresponding to a molecule number of 5×10[superscript 4]. …”
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Deviation from Universality in Collisions of Ultracold [superscript 6] Li[subscript 2] Molecules
Published 2013“…Li[subscript 2] closed-channel molecules are formed in the highest vibrational state near a narrow Feshbach resonance and decay via two-body collisions with Li[subscript 2], Li, and Na. …”
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Thermodynamics and solitonic excitations of a strongly-interacting Fermi gas
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Strong-coupling Bose polarons out of equilibrium: Dynamical renormalization-group approach
Published 2018“…We demonstrate that the main effect of these additional terms on the attractive side of a Feshbach resonance is to renormalize the coupling strength of the effective Fröhlich model.…”
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Dynamics of Feshbach molecule production
Published 2008“…Lastly, we implement the NMBE for the case of a fast linear ramp across a Feshbach resonance. The solution of this equation is made feasible by including a large part of the required computation in the kernel, which is calculated in advance. …”
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Quantum degenerate Bose-Fermi mixture of chemically different atomic species with widely tunable interactions
Published 2011“…We have created a quantum degenerate Bose-Fermi mixture of 23Na and 40K with widely tunable interactions via broad interspecies Feshbach resonances. Twenty Feshbach resonances between 23Na and 40K were identified. …”
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Quantum degenerate Bose-Fermi mixture of chemically different atomic species with widely tunable interactions
Published 2012“…We have created a quantum degenerate Bose-Fermi mixture of [superscript 23]Na and [superscript 40]K with widely tunable interactions via broad interspecies Feshbach resonances. Over 30 Feshbach resonances between [superscript 23]Na and [superscript 40]K were identified, including p-wave multiplet resonances. …”
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Strongly Interacting Isotopic Bose-Fermi Mixture Immersed in a Fermi Sea
Published 2011“…We observe multiple heteronuclear Feshbach resonances, in particular a wide s-wave resonance for the combination $^{41}$K-$^{40}$K, opening up studies of strongly interacting {\it isotopic} Bose-Fermi mixtures. …”
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Strongly interacting isotopic Bose-Fermi mixture immersed in a Fermi sea
Published 2011“…We observe multiple heteronuclear Feshbach resonances, in particular a wide s-wave resonance for the combination [superscript 41]K-[superscript 40]K, opening up studies of strongly interacting isotopic Bose-Fermi mixtures. …”
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Interaction spectroscopy of a two-component Mott insulator
Published 2019“…We create a map of the interactions of the two lowest hyperfine states of ⁷Li as a function of magnetic field, including measurements of several Feshbach resonances with exceptional sensitivity, and we identify promising regions for the realization of magnetic spin models.…”
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Discrete symmetry breaking transitions between paired superfluids
Published 2012“…We explore the zero-temperature phase diagram of bosons interacting via Feshbach resonant pairing interactions in one dimension. …”
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Periodically driven atomic systems
Published 2014“…This species combination has some very broad and low-loss interspecies Feshbach resonances that are instrumental for carrying out the experiments discussed in the first chapter. …”
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