Search Results - "Ketterle, W."
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1
Observation of phase separation in a strongly interacting imbalanced fermi gas
Published in Physical review letters (21-07-2006)“…We have observed phase separation between the superfluid and the normal component in a strongly interacting Fermi gas with imbalanced spin populations. The in…”
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2
Time-Resolved Observation of Competing Attractive and Repulsive Short-Range Correlations in Strongly Interacting Fermi Gases
Published in Physical review letters (21-12-2018)“…We exploit a time-resolved pump-probe spectroscopic technique to study the out-of-equilibrium dynamics of an ultracold two-component Fermi gas, selectively…”
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3
Tomographic rf spectroscopy of a trapped Fermi gas at unitarity
Published in Physical review letters (31-08-2007)“…We present spatially resolved radio-frequency spectroscopy of a trapped Fermi gas with resonant interactions and observe a spectral gap at low temperatures…”
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4
Condensation of pairs of fermionic atoms near a Feshbach resonance
Published in Physical review letters (26-03-2004)“…We have observed Bose-Einstein condensation of pairs of fermionic atoms in an ultracold 6Li gas at magnetic fields above a Feshbach resonance, where no stable…”
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5
Observation of Bose-Einstein condensation of molecules
Published in Physical review letters (19-12-2003)“…We have observed Bose-Einstein condensation of molecules. When a spin mixture of fermionic 6Li atoms was evaporatively cooled in an optical dipole trap near a…”
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6
Long phase coherence time and number squeezing of two Bose-Einstein condensates on an atom chip
Published in Physical review letters (19-01-2007)“…We measure the relative phase of two Bose-Einstein condensates confined in a radio frequency induced double-well potential on an atom chip. We observe phase…”
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7
Critical velocity for superfluid flow across the BEC-BCS crossover
Published in Physical review letters (17-08-2007)“…Critical velocities have been observed in an ultracold superfluid Fermi gas throughout the BEC-BCS crossover. A pronounced peak of the critical velocity at…”
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8
Vortices and superfluidity in a strongly interacting Fermi gas
Published in Nature (23-06-2005)“…Quantum degenerate Fermi gases provide a remarkable opportunity to study strongly interacting fermions. In contrast to other Fermi systems, such as…”
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9
Observation of Vortex Lattices in Bose-Einstein Condensates
Published in Science (American Association for the Advancement of Science) (20-04-2001)“…Quantized vortices play a key role in superfluidity and superconductivity. We have observed the formation of highly ordered vortex lattices in a rotating…”
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10
Pairing Without Superfluidity: The Ground State of an Imbalanced Fermi Mixture
Published in Science (American Association for the Advancement of Science) (11-05-2007)“…We used radio-frequency spectroscopy to study pairing in the normal and superfluid phases of a strongly interacting Fermi gas with imbalanced spin populations…”
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11
Evidence for superfluidity of ultracold fermions in an optical lattice
Published in Nature (26-10-2006)“…The study of superfluid fermion pairs in a periodic potential has important ramifications for understanding superconductivity in crystalline materials. By…”
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12
Imprinting vortices in a Bose-Einstein condensate using topological phases
Published in Physical review letters (04-11-2002)“…Vortices were imprinted in a Bose-Einstein condensate using topological phases. Sodium condensates held in a Ioffe-Pritchard magnetic trap were transformed…”
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13
Observation of Feshbach resonances between two different atomic species
Published in Physical review letters (01-10-2004)“…We have observed three Feshbach resonances in collisions between 6Li and 23Na atoms. The resonances were identified as narrow loss features when the magnetic…”
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14
Realization of Bose-Einstein condensates in lower dimensions
Published in Physical review letters (24-09-2001)“…Bose-Einstein condensates of sodium atoms have been prepared in optical and magnetic traps in which the energy-level spacing in one or two dimensions exceeds…”
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15
Quantum reflection from a solid surface at normal incidence
Published in Physical review letters (26-11-2004)“…We observed quantum reflection of ultracold atoms from the attractive potential of a solid surface. Extremely dilute Bose-Einstein condensates of 23Na, with…”
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16
Coreless vortex formation in a spinor Bose-Einstein condensate
Published in Physical review letters (11-04-2003)“…Coreless vortices were phase imprinted in a spinor Bose-Einstein condensate. The three-component order parameter of F=1 sodium condensates held in a…”
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17
Vortex nucleation in a stirred Bose-Einstein condensate
Published in Physical review letters (19-11-2001)“…We studied the nucleation of vortices in a Bose-Einstein condensate stirred by a laser beam. The vortex cores were observed using time-of-flight absorption…”
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18
Dynamical instability of a doubly quantized vortex in a Bose-Einstein condensate
Published in Physical review letters (15-10-2004)“…Doubly quantized vortices were topologically imprinted in /F=1> 23Na condensates, and their time evolution was observed using a tomographic imaging technique…”
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19
Atom interferometry with Bose-Einstein condensates in a double-well potential
Published in Physical review letters (06-02-2004)“…A trapped-atom interferometer was demonstrated using gaseous Bose-Einstein condensates coherently split by deforming an optical single-well potential into a…”
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20
Low velocity quantum reflection of Bose-Einstein condensates
Published in Physical review letters (01-09-2006)“…We study how interactions affect the quantum reflection of Bose-Einstein condensates. A patterned silicon surface with a square array of pillars resulted in…”
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