Results 21 to 30 of about 20,873 (170)
Efimov Resonances in Ultracold Quantum Gases [PDF]
Few-Body Systems, 2011 Ultracold atomic gases have developed into prime systems for experimental studies of Efimov three-body physics and related few-body phenomena, which occur in the universal regime of resonant interactions. In the last few years, many important breakthroughs have been achieved, confirming basic predictions of universal few-body theory and deepening our ...
Ferlaino F. +5 more
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Tracking Evaporative Cooling of a Mesoscopic Atomic Quantum Gas in Real Time
Physical Review X, 2021 The fluctuations in thermodynamic and transport properties in many-body systems gain importance as the number of constituent particles is reduced. Ultracold atomic gases provide a clean setting for the study of mesoscopic systems; however, the detection ...
Johannes Zeiher +4 more
doaj +1 more source
Contact interaction in an unitary ultracold Fermi gas [PDF]
, 2015 An ultracold Fermi atomic gas at unitarity presents universal properties that in the diluted limit can be well described by a contact interaction. By employing a guide function with correct boundary conditions and making simple modifications to the ...
Gandolfi, S. +3 more
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Scattering in Mixed Dimensions with Ultracold Gases [PDF]
Physical Review Letters, 2010 We experimentally investigate the mix-dimensional scattering occurring when the collisional partners live in different dimensions. We employ a binary mixture of ultracold atoms and exploit a species-selective 1D optical lattice to confine only one atomic species in 2D.
Lamporesi G +5 more
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Bose–Einstein condensation of 162Dy and 160Dy
New Journal of Physics, 2015 We report Bose–Einstein condensation of two isotopes of the highly magnetic element dysprosium: ^162 Dy and $^{160}$ Dy. For ^162 Dy, condensates with 10 ^5 atoms form below T = 50 nK. We find the evaporation efficiency for the isotope ^160 Dy to be poor;
Yijun Tang +3 more
doaj +1 more source
Itinerant ferromagnetism in ultracold Fermi gases [PDF]
Physical Review A, 2011 Itinerant ferromagnetism in cold Fermi gases with repulsive interactions is studied applying the Jastrow-Slater approximation generalized to finite polarization and temperature. For two components at zero temperature a second order transition is found at $ak_F\simeq0.90$ compatible with QMC.
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Hydrodynamic Modes in Dense Trapped Ultracold Gases [PDF]
Physical Review Letters, 2002 5 pages, revtex, 1 ...
Combescot, R., Leyronas, X.
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Ultracold chemistry and its reaction kinetics
New Journal of Physics, 2015 We study the reaction kinetics of chemical processes occurring in the ultracold regime and systematically investigate their dynamics. Quantum entanglement is found to play a key role in driving an ultracold reaction towards a dynamical equilibrium.
Florian Richter +5 more
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Perspectives of Ultra Cold Atoms Trapped in Magnetic Micro Potentials [PDF]
, 2004 Recent work on magnetic micro traps for ultracold atoms is briefly reviewed. The basic principles of operation are described together with the loading methods and some of the realized trap geometries.
Andersson +44 more
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Quantum Polarization Spectroscopy of Ultracold Spinor Gases [PDF]
Physical Review Letters, 2007 5 pages, 1 figure; v2: minor ...
Eckert, K. +4 more
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