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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Particle approximation of the two-fluid model for superfluid 4He using smoothed particle hydrodynamics
TL;DR: In this article, a finite particle approximation of the two-fluid model for liquid 4He using smoothed particle hydrodynamics (SPH) was presented, and the authors 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.
Towards spin squeezing in cold atomic ensembles
TL;DR: In this article, an experimental setup for studying the interaction of an ensemble of 10^5 - 10^6 cold 87 Rb atoms held in a far off-resonance optical dipole trap with a probe detuned by about 100 natural line widths is described.
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Single-photon source using stimulated FWM in optical fibers for quantum communication
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From the necessary to the possible : the genesis of the spin-statistics theorem
TL;DR: The spin-statistics theorem, which relates the intrinsic angular momentum of a single particle to the type of quantum statistics obeyed by a system of many such particles, is one of the central theorems in quantum field theory and the physics of elementary particles.
Journal ArticleDOI
Thermodynamic properties of interacting bosons with zero chemical potential
TL;DR: In this paper, an interplay between attractive and repulsive interactions is investigated in the Skyrme-like mean-field model of an interacting system of bosons with finite temperatures and zero chemical potential, and several modifications of thermodynamic properties are found with increasing a strength of attractive forces.