Results 1 to 10 of about 144,548 (197)
A rapidly expanding Bose-Einstein condensate: an expanding universe in the lab. [PDF]
Phys Rev X, 2018 We study the dynamics of a supersonically expanding ring-shaped Bose-Einstein condensate both experimentally and theoretically. The expansion redshifts long-wavelength excitations, as in an expanding universe.
Eckel S +4 more
europepmc +3 more sources
Direct evidence of spatial stability of Bose-Einstein condensate of magnons. [PDF]
Nat Commun, 2020 Bose-Einstein condensation of magnons is one of few macroscopic quantum phenomena observed at room temperature. Since its discovery, it became an object of intense research, which led to the observation of many exciting phenomena such as quantized ...
Borisenko IV +6 more
europepmc +3 more sources
Can dark matter be a Bose-Einstein condensate? [PDF]
, 2007 We consider the possibility that the dark matter, which is required to explain the dynamics of the neutral hydrogen clouds at large distances from the galactic center, could be in the form of a Bose-Einstein condensate. To study the condensate we use the
Arbey A +28 more
core +2 more sources
Geometrical Pumping with a Bose-Einstein Condensate. [PDF]
Phys Rev Lett, 2016 We realized a quantum geometric "charge" pump for a Bose-Einstein condensate (BEC) in the lowest Bloch band of a novel bipartite magnetic lattice. Topological charge pumps in filled bands yield quantized pumping set by the global-topological-properties ...
Lu HI +5 more
europepmc +3 more sources
Atomic Bose–Einstein condensate in twisted-bilayer optical lattices [PDF]
Nature, 2021 Quantum simulation of superfluid to Mott insulator transition in twisted-bilayer square lattices based on atomic Bose–Einstein condensates loaded into spin-dependent optical lattices provides a new direction for exploring moiré physics in ultracold atoms.
Zengming Meng +8 more
semanticscholar +1 more source
Vortex formation in a stirred bose-einstein condensate [PDF]
Physical Review Letters, 1999 Using a focused laser beam we stir a Bose-Einstein condensate of 87Rb confined in a magnetic trap and observe the formation of a vortex for a stirring frequency exceeding a critical value.
Madison, Chevy, Wohlleben, Dalibard
semanticscholar +1 more source
Anderson localization of a non-interacting Bose–Einstein condensate [PDF]
Nature, 2008 Anderson localization of waves in disordered media was originally predicted fifty years ago, in the context of transport of electrons in crystals. The phenomenon is much more general and has been observed in a variety of systems, including light waves ...
G. Roati +8 more
semanticscholar +1 more source
Vortices in a Bose Einstein condensate [PDF]
Quantum Electronics and Laser Science Conference, 1999 Summary form only given. Since the first observations of Bose Einstein condensates (BEC) in dilute atomic gases, there has been considerable interest in observing effects in atomic BEC akin to the hallmark effects associated with a superfluid, in ...
M. Matthews +5 more
semanticscholar +1 more source
The Bose-Einstein Condensate and Cold Atom Laboratory [PDF]
EPJ Quantum Technology, 2019 Microgravity eases several constraints limiting experiments with ultracold and condensed atoms on ground. It enables extended times of flight without suspension and eliminates the gravitational sag for trapped atoms.
Kai Frye +53 more
semanticscholar +1 more source
Observation of Attractive and Repulsive Polarons in a Bose-Einstein Condensate. [PDF]
Physical Review Letters, 2016 The problem of an impurity particle moving through a bosonic medium plays a fundamental role in physics. However, the canonical scenario of a mobile impurity immersed in a Bose-Einstein condensate (BEC) has not yet been realized.
N. B. Jørgensen +7 more
semanticscholar +1 more source