Results 101 to 110 of about 187,459 (173)

Bogoliubov waves and distant transport of magnon condensate at room temperature

Nature Communications, 2019
Exploration of magnon Bose–Einstein condensate (BEC) may enable intriguing applications in magnonic devices. Here the authors show experimentally the condensed magnons forming compact humps of BEC density can propagate many hundreds of micrometers in the
Dmytro A. Bozhko, Alexander J. E. Kreil, Halyna Yu. Musiienko-Shmarova, Alexander A. Serga, Anna Pomyalov, Victor S. L’vov, Burkard Hillebrands   +6 more
doaj   +1 more source

Thermo-optical interactions in a dye-microcavity photon Bose–Einstein condensate

New Journal of Physics, 2017
Superfluidity and Bose–Einstein condensation are usually considered as two closely related phenomena. Indeed, in most macroscopic quantum systems, like liquid helium, ultracold atomic Bose gases, and exciton-polaritons, condensation and superfluidity ...
Hadiseh Alaeian, Mira Schedensack, Clara Bartels, Daniel Peterseim, Martin Weitz   +4 more
doaj   +1 more source

Stability analysis on dark solitons in quasi-1D Bose-Einstein condensate with three-body interactions. [PDF]

Sci Rep, 2021
Zhou Y, Meng H, Zhang J, Li X, Ren X, Wan X, Zhou Z, Wang J, Fan X, Shi Y.   +9 more
europepmc   +1 more source

Feshbach spectroscopy of an ultracold Rb-Cs mixture [PDF]

, 2012
This thesis reports the observation of interspecies Feshbach resonances in an ultracold mixture of Rb and Cs atoms. A versatile combined magnetic and optical potential has been designed and constructed which is capable of bringing both $^{87}\rm{Rb}$ and
Jenkin, Daniel Lester, JENKIN, DANIEL,LESTER, Daniel L. Jenkin   +2 more
core  

Bose-Einstein condensates in neutron stars

, 2017
In the two decades since the appearance of the book Bose-Einstein Condensation in 1995, there have been a number of developments in our understanding of dense matter. After a brief overview of neutron star structure and the Bose-Einstein condensed phases
Schäfer, T., Pethick, C. J., Pethick, Christopher,, Schwenk, A.   +3 more
core   +1 more source

Bose condensation in (random) traps

Condensed Matter Physics, 2009
We study a non-interacting (perfect) Bose-gas in random external potentials (traps). It is shown that a generalized Bose-Einstein condensation in the random eigenstates manifests if and only if the same occurs in the one-particle kinetic-energy ...
V.A. Zagrebnov, J.V. Pulé, Th. Jaeck
doaj   +1 more source

Numerical studies of superfluids and superconductors [PDF]

, 2001
In this thesis we demonstrate the power of the Gross-Pitaevskii and the time-dependent Ginzburg-Landau equations by numerically solving them for various fundamental problems related to superfluidity and superconductivity.
Winiecki, Thomas, Winiecki, T.
core  

Entropy of a Turbulent Bose-Einstein Condensate. [PDF]

Entropy (Basel), 2020
Madeira L, García-Orozco AD, Dos Santos FEA, Bagnato VS.   +3 more
europepmc   +1 more source

Interfacing ultracold atoms and mechanical oscillators [PDF]

, 2011
In this thesis I present experiments investigating controlled coupling between mechanical oscillators and ultracold atoms. I report on three different coupling mechanisms. In a first experiment, the surface potential experienced by atoms close to the
Camerer, Stephan, Camerer, S.
core   +1 more source

Retroreflection and diffraction of a Bose-Einstein condensate by evanescent standing wave potential. [PDF]

Sci Rep, 2020
Akram J, Qasim K, Wei L.
europepmc   +1 more source