We show that the polarization mode dispersion of a constantly spun, single-mode fiber is strongly influenced by the autocorrelation function of its birefringence. In particular, under probable conditions, the mean square differential group delay of the spun fiber may even be higher than the delay that the same fiber would have if it were not spun.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1364/ol.32.003236 | DOI Listing |
Phys Rev Lett
December 2024
Institut für Theoretische Physik, Universität Leipzig, IPF 231101, 04081 Leipzig, Germany.
We investigate the aging properties of phase-separation kinetics following quenches from T=∞ to a finite temperature below T_{c} of the paradigmatic two-dimensional conserved Ising model with power-law decaying long-range interactions ∼r^{-(2+σ)}. Physical aging with a power-law decay of the two-time autocorrelation function C(t,t_{w})∼(t/t_{w})^{-λ/z} is observed, displaying a complex dependence of the autocorrelation exponent λ on σ. A value of λ=3.
View Article and Find Full Text PDFAn Acad Bras Cienc
December 2024
Universidade de Pernambuco, Laboratório de Interações Ecológicas e Semioquímicos (LIES), Campus Petrolina, Rodovia BR 203, Km 2, s/n, Vila Eduardo, 56328-900 Petrolina, PE, Brazil.
Night-blooming cacti, primarily pollinated by bats and hawkmoths, also attract beetles seeking food and safe shelter for mating and brooding their offspring. The influence of flower density on beetle visitation rates remains unclear, with responses varying by species and environmental factors. In the Caatinga Seasonally Dry Tropical Forest, we studied the flower occupancy distribution of two beetle species, Cyclocephala paraguayensis and Nitops aff.
View Article and Find Full Text PDFJ Chem Phys
December 2024
Department of Physics, Kyungpook National University, Daegu, South Korea.
The freely jointed chain model with reversible hinges (rFJC) is the simplest theoretical model, which captures reversible transitions of the local bending stiffness along the polymer chain backbone (e.g., helix-coil-type of local conformational changes or changes due to the binding/unbinding of ligands).
View Article and Find Full Text PDFJ Dairy Sci
December 2024
Institute of Animal Science, University of Hohenheim, 70599 Stuttgart.
Resilience expresses the ability of an individual to cope with short-term disturbances and to recover quickly by returning to the original level of performance. It can be measured by variance-based parameters and by the autocorrelation of daily milk yields in dairy cows. The design of resilience indicator traits, their heritabilities and genetic correlations have been studied in detail in recent years.
View Article and Find Full Text PDFJ Chem Phys
December 2024
Department of Chemistry, Sikkim University, Gangtok 737102, India.
Crystallization and amorphization are important processes and different cooling rates cause these transitions. Obtaining pure metals from their molten state is a challenge unless these two are well understood. Here we study both these transitions in liquid Ti using molecular dynamics simulations wherein Ti is modeled with embedded atom potential.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!