Journal ArticleDOI
Plancks Gesetz und Lichtquantenhypothese
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TLDR
In this article, the authors describe how the Phasenraum eines Lichtquants in bezug auf ein gegebenes Volumen wird in „Zellen“ von der Grose h3 aufgeteilt, i.e., the Zahl der moglichen Verteilungen der Lichtquanten einer makroskopisch definierten Strahlung unter diese Zellen liefert die Entropie.Abstract:
Der Phasenraum eines Lichtquants in bezug auf ein gegebenes Volumen wird in „Zellen“ von der Grose h3 aufgeteilt. Die Zahl der moglichen Verteilungen der Lichtquanten einer makroskopisch definierten Strahlung unter diese Zellen liefert die Entropie und damit alle thermodynamischen Eigenschaften der Strahlung.read more
Citations
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Journal ArticleDOI
Kinetics of pulse-induced magnon Bose-Einstein condensate
Sergey N. Andrianov,Sergey N. Andrianov,Vladimir V. Bochkarev,Sergey A. Moiseev,Sergey A. Moiseev +4 more
TL;DR: In this paper, the kinetics of magnon Bose-Einstein condensed (BEC) magnons after pulsed excitation in a ferromagnet at room and low temperatures were analyzed.
Journal ArticleDOI
Evolution of room-temperature magnon gas: Toward a coherent Bose-Einstein condensate
Timo B. Noack,Vitaliy I. Vasyuchka,Anna Pomyalov,Victor S. L'vov,Alexander A. Serga,Burkard Hillebrands +5 more
TL;DR: In this article, the authors studied the process of the formation of a coherent magnon condensate by direct detection of microwave radiation emitted by magnons in a parametrically driven yttrium iron garnet bulk sample of a special shape.
DissertationDOI
Excitations and transport in strongly correlated bosonic matter
TL;DR: In this paper, the authors studied the properties of a Bose Einstein condensate subject to a strong lattice potential and showed that the gapped mode, named Higgs mode, exists throughout a large portion of the phase diagram and only disappears in a high energy continuum once the lattice can be fully absorbed in a renormalized mass.
Book ChapterDOI
Josephson Tunneling of Excited States in a Double-Well Potential
Hadi Susanto,Jesús Cuevas +1 more
TL;DR: In this article, the dynamics of matter waves in an effectively one-dimensional Bose-Einstein condensate in a double well potential were studied, where one of the double wells confines excited states.
Dissertation
Condensats de Bose–Einstein de spin 1 : étude expérimentale avec des atomes de sodium dans un piège optique
TL;DR: In this paper, the authors present le dispositif experimental and le protocole suivi for the production tout-optique de condensats of Bose-Einstein d'atomes de Sodium con dans un piege optique.