Journal ArticleDOI
Plancks Gesetz und Lichtquantenhypothese
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
Bose-Einstein condensation of atomic gases in a general harmonic-oscillator confining potential trap
Klaus Kirsten,David J. Toms +1 more
TL;DR: An analysis of Bose-Einstein condensation for a system of non- interacting spin-0 particles in a harmonic oscillator confining potential trap and discusses why a confined system of particles differs both qualitatively andatively from an identical system which is not confined.
Journal ArticleDOI
Exploring quantum matter with ultracold atoms in optical lattices
TL;DR: In this paper, a review of a series of experiments with ultracold quantum gases in optical lattices is presented, showing that the granularity of the matter wave field, caused by the discreteness of atoms, gives rise to effects going beyond the simple single matter wave description.
Journal ArticleDOI
The development of the quantum-mechanical electron theory of metals: 1928—1933
TL;DR: In this paper, the authors trace the fundamental developments and events of the emergence of the quantum-mechanical electron theory of metals from 1928 to 1933, focusing on three examples: band theory, magnetism, and superconductivity.
Journal ArticleDOI
Quantum turbulence in trapped atomic Bose–Einstein condensates
Marios C. Tsatsos,P. E. S. Tavares,A. Cidrim,A. R. Fritsch,M. A. Caracanhas,F. Ednilson A. dos Santos,Carlo F. Barenghi,Vanderlei Salvador Bagnato +7 more
TL;DR: In this article, the authors review the general properties of quantum gases at ultralow temperatures paying particular attention to vortices, their dynamics and turbulent behavior, and highlight the difficulties of identifying and characterizing turbulence in gaseous Bose-Einstein condensates compared to ordinary turbulence and turbulence in superfluid liquid helium.
Book ChapterDOI
“Nicht Sein Kann was Nicht Sein Darf,” or the Prehistory of EPR, 1909–1935: Einstein’s Early Worries about the Quantum Mechanics of Composite Systems
TL;DR: The story of Einstein's misgivings about quantum mechanics and about his debate with Bohr has been told many times by the participants themselves, by their colleagues and contemporaries, and by historians and philosophers of science of later generations as discussed by the authors.