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
Indistinguishability of particles or independence of the random variables
TL;DR: After establishing the formula of information, the characteristics of the particles as random variables are examined to find the Boltzmann distribution and the Gibbs formula-irrespectively of whether the particles are distinguishable or not.
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From the pion cloud of Tomonaga to the electron pairs of Schrieffer: many body wave functions from nuclear physics to condensed matter physics
TL;DR: In this paper, the evolution of these ideas in quantum field theory providing an unconventional historical perspective is discussed, as well as the formalism developed in the Tomonaga Quantum Field Theory of the pion-nucleon system was an important ingredient for the development of BCS theory.
Dissertation
Ab-Initio Quantum Phase Diagrams of Ultracold Atomic Gases in Optical Lattices
TL;DR: In this article, the phase diagram of ultracold Rb-87 in one-dimensional optical superlattices was computed using the Density Matrix Renormalization Group (DMRG) algorithm.
Coherence and many-body effects in the transport of Bose–Einstein condensates
TL;DR: In this article, the truncated Wigner method is used to study the scattering of Bose-Einstein condensates in one-dimensional waveguides where atom-atom interactions and external potentials are nonvanishing only in a finite region of space.
Journal ArticleDOI
Particle approximation of the two-fluid model for superfluid $^4$He using smoothed particle hydrodynamics
TL;DR: In this article, a finite particle approximation of the two-fluid model for liquid was presented using smoothed particle hydrodynamics (SPH), and the results showed that the emergence of multiple independent vortices parallel to the circular axis and that of the so-called rigid-body rotation can be reproduced using SPH.