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20 papers · 1 filter
Green function approach for scattering quantum walks
F. M. Andrade, M. G. E. da Luz
In this work a Green function approach for scattering quantum walks is developed. The exact formula has the form of a sum over paths and always can be cast into a closed analytic e…
The effects of spatially heterogeneous prey distributions on detection patterns in foraging seabirds
Octavio Miramontes, Denis Boyer, Frederic Bartumeus
Many attempts to relate animal foraging patterns to landscape heterogeneity are focused on the analysis of foragers movements. Resource detection patterns in space and time are not…
General approach for studying first-order phase transitions at low temperatures
C. E. Fiore, M. G. E. da Luz
By combining different ideas, a general and efficient protocol to deal with discontinuous phase transitions at low temperatures is proposed. For small 's, it is possible to deri…
Three unequal masses on a ring and soft triangular billiards
H. A. Oliveira, G. A. Emidio, M. W. Beims
The dynamics of three soft interacting particles on a ring is shown to correspond to the motion of one particle inside a soft triangular billiard. The dynamics inside the soft bill…
Twisted partial actions of Hopf algebras
Marcelo Muniz S. Alves, Eliezer Batista, Michael Dokuchaev +1
In this work, the notion of a twisted partial Hopf action is introduced as a unified approach for twisted partial group actions, partial Hopf actions and twisted actions of Hopf al…
Chaotic and Arnold stripes in weakly chaotic Hamiltonian systems
Marcelo S. Custódio, Cesar Manchein, Marcus W. Beims
The dynamics in weakly chaotic Hamiltonian systems strongly depends on initial conditions and little can be affirmed about generic behaviors. Using two distinct Hamiltonian systems…