Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Agam, Oded"'
Motile bacteria can migrate along chemical gradients in a process known as chemotaxis. When exposed to uniform environmental stress, Escherichia coli cells coordinate their chemotactic responses to form millimeter-sized condensates containing hundred
Externí odkaz:
http://arxiv.org/abs/2410.14244
Autor:
Agam, Oded, Braun, Erez
Recent experimental investigations into Hydra regeneration revealed a remarkable phenomenon: the morphological transformation of a tissue fragment from the incipient spherical configuration to a tube-like structure - the hallmark of a mature Hydra -
Externí odkaz:
http://arxiv.org/abs/2405.03448
Autor:
Agam, Oded, Braun, Erez
We utilize whole-body Hydra regeneration from a small tissue segment to develop a physics framework for animal morphogenesis. Introducing experimental controls over this process, an external electric field and a drug that blocks gap junctions, allows
Externí odkaz:
http://arxiv.org/abs/2304.01801
Autor:
Agam, Oded, Braun, Erez
Understanding how the collective physical processes drive robust morphological transitions in animal development requires the characterization of the relevant fields underlying morphogenesis. Calcium (Ca2+) is known to be such a field. Here we show t
Externí odkaz:
http://arxiv.org/abs/2303.02671
We consider the macroscopic transport properties of two-dimensional random binary mixtures with identical spatial distributions of the two phases. Previous studies have obtained exact analytical results for the electrical conductivity of a single lay
Externí odkaz:
http://arxiv.org/abs/1909.03421
Autor:
Bettelheim, Eldad, Agam, Oded
We consider the problem of viscous fingering in the presence of quenched disorder that is both weak and short-range correlated. The two point correlation function of the harmonic measure is calculated perturbatively, and is used in order to calculate
Externí odkaz:
http://arxiv.org/abs/1805.06609
Autor:
Aleiner, Igor, Agam, Oded
We consider clean metals, at finite temperature, in which the inelastic rate, $\hbar/ \tau_{ee}$, can become of the order of, or larger, than the band splitting energy. We show that in suchsystems, contrary to the common knowledge, the umklapp scatte
Externí odkaz:
http://arxiv.org/abs/1706.06256
Publikováno v:
Phys. Rev. Lett. 118, 085303 (2017)
We study the impact of the non-analytic reconstruction of vortex cores on static vortex structures in weakly coupled superfluids. We show that in rotating two-dimensional systems, the Abrikosov vortex lattice is unstable to vortex core deformation: E
Externí odkaz:
http://arxiv.org/abs/1608.02100
Publikováno v:
Phys. Rev. A 94, 013828 (2016)
We consider the propagation of several entangled photons through an elastically scattering medium and study statistical properties of their speckle patterns. We find the spatial correlations of multiphoton speckles and their sensitivity to changes of
Externí odkaz:
http://arxiv.org/abs/1602.01111
Autor:
Agam, Oded, Aleiner, Igor L.
Publikováno v:
EPL 112 (2015) 36003
We analyze the disorder limited motion of quantum vortices in a two-dimensional bosonic superfluid with a large healing length. It is shown that the excitations of low-energy degrees of freedom associated with the non-analytic reconstruction of the v
Externí odkaz:
http://arxiv.org/abs/1503.04687