58 citations · 134 across the 8 of their papers we have counts for
8 papers
Comment on: rotational properties of trapped bosons
F. Brosens, J. T. Devreese, L. F. Lemmens
Based on the Hellman-Feynman theorem it is shown that the average square radius of a cloud of interacting bosons in a parabolic well can be derived from their free energy. As an ap…
The Partition Function of a Spinor Gas
L. F. Lemmens, F. Brosens, J. T. Devreese
For a spinor gas, i.e., a mixture of identical particles with several internal degrees of freedom, we derive the partition function in terms of the Feynman-Kac functionals of polar…
Condensation and interaction range in harmonic boson traps: a variational approach
J. Tempere, F. Brosens, L. F. Lemmens +1
For a gas of N bosons interacting through a two-body Morse potential a variational bound of the free energy of a confined system is obtained. The calculation method is based on the…
Statistical mechanics and path integrals for a finite number of bosons
L. F. Lemmens, F. Brosens, J. T. Devreese
Recent investigations show that the statistical mechanics of a finite number of particles in ideal harmonic systems predicts different results for the same physical properties, dep…
The many-body diffusion algorithm, harmonic fermions
F. Luczak, F. Brosens, J. T. Devreese +1
A numerical implementation scheme is presented for the recently developed many-body diffusion approach for identical particles, in the case of harmonic potentials. The procedure is…
Rotational properties of trapped bosons
F. Brosens, J. T. Devreese, L. F. Lemmens
Based on the Hellman-Feynman theorem it is shown that the average square radius of a cloud of interacting bosons in a parabolic well can be derived from their free energy. As an ap…
Thermodynamics of Coupled Identical Oscillators within the Path Integral Formalism
F. Brosens, J. T. Devreese, L. F. Lemmens
A generalization of symmetrized density matrices in combination with the technique of generating functions allows to calculate the partition function of identical particles in a pa…
Many-Body Diffusion and Path Integrals for Identical Particles
L. F. Lemmens, F. Brosens, J. T. Devreese
For distinguishable particles it is well known that Brownian motion and a Feynman-Kac functional can be used to calculate the path integral (for imaginary times) for a general clas…