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
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Spatially indirect excitons in coupled quantum wells
TL;DR: In this article, a phase diagram of an exciton system was constructed to demonstrate the existence of distinct phases and new strategies for producing cold exciton systems, which may lead to opportunities for the realization of Bose-Einstein condensation in solid-state systems.
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Exploring the Universe with matter waves.
TL;DR: An exotic ultracold gas known as a Bose–Einstein condensate has been produced and studied in space and could be used to build quantum sensors that probe the properties of the Universe with extreme precision.
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Interactions of electromagnetic radiation with bose einstein condensates: manipulating ultra-cold atoms with light
TL;DR: In this paper, a review of models describing the interactions of ultra-cold atoms and laser light is given, with particular attention given to the introduction of local field effects, some possible effects of self-localization and guiding, consequences of such interactions, are discussed.
Journal ArticleDOI
Perturbation theory for Bose-Einstein condensates on bounded space domains
TL;DR: BoseEinstein condensates (BECs), first predicted theoretically by Bose and Einstein and finally discovered experimentally in the 1990s, continue to motivate theoretical and experimental physics wor...