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of 106
pro vyhledávání: '"Paulose, Jayson"'
When biological populations expand into new territory, the evolutionary outcomes can be strongly influenced by genetic drift, the random fluctuations in allele frequencies. Meanwhile, spatial variability in the environment can also significantly infl
Externí odkaz:
http://arxiv.org/abs/2310.11563
Autor:
Melkani, Abhijeet, Paulose, Jayson
Publikováno v:
Phys. Rev. E 110, 015003 (2024)
Linear mechanical systems with time-modulated parameters can harbor oscillations with amplitudes that grow or decay exponentially with time due to the phenomenon of parametric resonance. While the resonance properties of individual oscillators are we
Externí odkaz:
http://arxiv.org/abs/2310.08734
Publikováno v:
Physical Review E 108, 065003 (2023)
Orthotropic shell structures are ubiquitous in biology and engineering, from bacterial cell walls to reinforced domes. We present a rescaling transformation that maps an orthotropic shallow shell to an isotropic one with a different local geometry. T
Externí odkaz:
http://arxiv.org/abs/2307.15746
Autor:
Karki, Pragalv, Paulose, Jayson
Publikováno v:
Phys. Rev. Research 5, 023036 (2023)
Dispersionless flat bands can be classified into two types: (1) non-singular flat bands whose eigenmodes are completely characterized by compact localized states; and (2) singular flat bands that have a discontinuity in their Bloch eigenfunctions at
Externí odkaz:
http://arxiv.org/abs/2211.05926
Spatial models where growth is limited to the edge of the expansions have been instrumental to understand the population dynamics and the clone size distribution in growing cellular populations, such as microbial colonies and avascular tumours. A com
Externí odkaz:
http://arxiv.org/abs/2112.13639
Publikováno v:
Phys. Rev. E 107, 014501 (2023)
We study a classical model of thermally fluctuating polymers confined to two dimensions, experiencing a grooved periodic potential, and subject to pulling forces both along and transverse to the grooves. The equilibrium polymer conformations are desc
Externí odkaz:
http://arxiv.org/abs/2112.05741
Autor:
Kruss, Noah, Paulose, Jayson
Publikováno v:
Phys. Rev. Applied 17, 024020 (2022)
Parametric amplification -- injecting energy into waves via periodic modulation of system parameters -- is typically restricted to specific multiples of the modulation frequency. However, broadband parametric amplification can be achieved in active m
Externí odkaz:
http://arxiv.org/abs/2110.13219
Autor:
Sun, Wenqian, Paulose, Jayson
Publikováno v:
Phys. Rev. E 104, 025004 (2021)
Pressurized elastic shells are ubiquitous in nature and technology, from the outer walls of yeast and bacterial cells to artificial pressure vessels. Indentation measurements simultaneously probe the internal pressure and elastic properties of thin s
Externí odkaz:
http://arxiv.org/abs/2103.06307
Autor:
Karki, Pragalv, Paulose, Jayson
Publikováno v:
Phys. Rev. Applied 15, 034083 (2021)
Slowing down, stopping, and reversing a signal is a core functionality for information processing. Here, we show that this functionality can be realized by tuning the dispersion of a periodic system through a dispersionless, or flat, band. Specifical
Externí odkaz:
http://arxiv.org/abs/2009.12387
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