Results 21 to 30 of about 3,922 (141)

Efficient decision-making by volume-conserving physical object

open access: yesNew Journal of Physics, 2015
Decision-making is one of the most important intellectual abilities of not only humans but also other biological organisms, helping their survival. This ability, however, may not be limited to biological systems and may be exhibited by physical systems ...
Song-Ju Kim   +2 more
doaj   +1 more source

The nonlinear dirac equation in Bose–Einstein condensates: vortex solutions and spectra in a weak harmonic trap

open access: yesNew Journal of Physics, 2015
We analyze the vortex solution space of the $(2+1)$ -dimensional nonlinear Dirac equation for bosons in a honeycomb optical lattice at length scales much larger than the lattice spacing. Dirac point relativistic covariance combined with s-wave scattering
L H Haddad, Lincoln D Carr
doaj   +1 more source

Small-scale behaviour in deterministic reaction models [PDF]

open access: yes, 2010
In a recent paper published in this journal [J. Phys. A: Math. Theor. 42 (2009) 495004] we studied a one-dimensional particles system where nearest particles attract with a force inversely proportional to a power \alpha of their distance and coalesce ...
ben-Avraham, Daniel, Politi, Paolo
core   +2 more sources

A simulation based research on chance constrained programming in robust facility location problem

open access: yesOpen Physics, 2017
Since facility location decisions problem include long-term character and potential parameter variations, it is important to consider uncertainty in its modeling.
Kaijun Leng   +3 more
doaj   +1 more source

Analysis of a New Fractional Model for Damped Bergers’ Equation

open access: yesOpen Physics, 2017
In this article, we present a fractional model of the damped Bergers’ equation associated with the Caputo-Fabrizio fractional derivative. The numerical solution is derived by using the concept of an iterative method.
Singh Jagdev   +3 more
doaj   +1 more source

Symmetry breaking: A tool to unveil the topology of chaotic scattering with three degrees of freedom

open access: yes, 2010
We shall use symmetry breaking as a tool to attack the problem of identifying the topology of chaotic scatteruing with more then two degrees of freedom.
Jung, C.   +3 more
core   +1 more source

Comment on "Soliton ratchets induced by excitation of internal modes" [PDF]

open access: yes, 2004
Very recently Willis et al. [Phys. Rev. E {\bf 69}, 056612 (2004)] have used a collective variable theory to explain the appearance of a nonzero energy current in an ac driven, damped sine-Gordon equation.
Bernardo Sánchez-Rey   +3 more
core   +2 more sources

The nonlinear Dirac equation in Bose–Einstein condensates: II. Relativistic soliton stability analysis

open access: yesNew Journal of Physics, 2015
The nonlinear Dirac equation for Bose–Einstein condensates (BECs) in honeycomb optical lattices gives rise to relativistic multi-component bright and dark soliton solutions.
L H Haddad, Lincoln D Carr
doaj   +1 more source

Maximum path information and the principle of least action for chaotic system

open access: yes, 2004
A path information is defined in connection with the different possible paths of chaotic system moving in its phase space between two cells. On the basis of the assumption that the paths are differentiated by their actions, we show that the maximum path ...
Wang, Qiuping A.
core   +1 more source

Transport of quantum excitations coupled to spatially extended nonlinear many-body systems

open access: yesNew Journal of Physics, 2015
The role of noise in the transport properties of quantum excitations is a topic of great importance in many fields, from organic semiconductors for technological applications to light-harvesting complexes in photosynthesis.
Stefano Iubini   +3 more
doaj   +1 more source

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