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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Journal ArticleDOI
Functional renormalization group approach to the BCS-BEC crossover
TL;DR: In this article, the phase transition to superfluidity and the BCS-BEC crossover for an ultracold gas of fermionic atoms are discussed within a functional renormalization group approach.
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Criterion for Bose-Einstein condensation in a harmonic trap in the case with attractive interactions
TL;DR: In this article, the standard criterion for Bose-Einstein condensation and its relation to coherence properties of the system were analyzed using a model many-body wave function.
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A rigorous derivation of the defocusing cubic nonlinear Schr\"{o}dinger equation on $\mathbb{T}^3$ from the dynamics of many-body quantum systems
TL;DR: In this paper, Chen, Hainzl, Pavlovic and Seiringer obtained a rigorous derivation of the defocusing cubic nonlinear Schrodinger equation on the three-dimensional torus from the many-body limit of interacting bosonic systems.
Journal ArticleDOI
Wave turbulence in Bose–Einstein condensates
TL;DR: In this paper, the kinetics of nonequilibrium Bose-Einstein condensates are considered within the framework of the Gross-Pitaevskii (GP) equation and a systematic derivation is given for weak small-scale perturbations of a steady confined condensate state.
Journal ArticleDOI
Phase Engineering and Solitons of Bose–Einstein Condensates with Two- and Three-Body Interactions
TL;DR: In this paper, a phase imprint was introduced into the macroscopic order parameter governing the dynamics of Bose-Einstein condensates with attractive two-body interactions described by a cubic Gross-Pitaevskii (GP) equation and then the imprinted phase was used to generate the modified GP equation.