边界驱动系统中位置信息的限制。

IF 2.2 3区 物理与天体物理 Q2 PHYSICS, FLUIDS & PLASMAS
Prashant Singh, Karel Proesmans
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引用次数: 0

摘要

化学梯度可以用来确定粒子的位置。这种位置信息是至关重要的,例如,在发育生物学中胚胎模式的形成。本文的中心目标是研究一个系统中可以存储多少位置信息的基本物理限制。为了达到这一目的,我们研究了边界驱动系统的位置信息,并在接近平衡状态下导出了一个只涉及系统的化学势和密度梯度的通用表达式。我们还推测,该表达式可以作为边界驱动系统超越线性响应的位置信息的上界。为了支持这一说法,我们在广泛的可解边界驱动系统上进行了测试。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Limits to positional information in boundary-driven systems.

Chemical gradients can be used by a particle to determine its position. This positional information is of crucial importance, for example, in developmental biology in the formation of patterns in an embryo. The central goal of this paper is to study the fundamental physical limits on how much positional information can be stored inside a system. To achieve this, we study positional information for boundary-driven systems, and derive, in the near-equilibrium regime, a universal expression involving only the chemical potential and density gradients of the system. We also conjecture that this expression serves as an upper bound on the positional information of boundary-driven systems beyond linear response. To support this claim, we test it on a broad range of solvable boundary-driven systems.

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来源期刊
Physical Review E
Physical Review E PHYSICS, FLUIDS & PLASMASPHYSICS, MATHEMAT-PHYSICS, MATHEMATICAL
CiteScore
4.50
自引率
16.70%
发文量
2110
期刊介绍: Physical Review E (PRE), broad and interdisciplinary in scope, focuses on collective phenomena of many-body systems, with statistical physics and nonlinear dynamics as the central themes of the journal. Physical Review E publishes recent developments in biological and soft matter physics including granular materials, colloids, complex fluids, liquid crystals, and polymers. The journal covers fluid dynamics and plasma physics and includes sections on computational and interdisciplinary physics, for example, complex networks.
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