从底层以计算区重建宜居带
Rebuilding the Habitable Zone from the Bottom Up with Computational Zones
AI总结：
本文提出将传统宜居带推广为计算区，以容量、能量和实例化三大约束刻画生物与广义计算，并通过行星表面生物计算和戴森结构的热力学效率与兰道尔极限分析，揭示计算区可能具有低温远红外可观测特征。
摘要：
计算，如果被视为一组作用于由物质状态所表示信息的物理过程，则涵盖生物系统、数字系统及其他构造，并可能是衡量生命系统的一个基本量度。生物计算的机会，体现在携带信息的有机分子结构在传播和选择驱动下的演化中，已部分地根据诸如温度和液态水存在等基本条件，以行星宜居带的形式得到刻画。本文提出将这一概念推广为计算区，其约束由三个主要特征设定：容量（包括计算速率）、能量和实例化（或基底，包括空间范围）。计算区自然地结合了传统的宜居性因素，包括与生物功能相关的那些因素，这些因素纳入了化学环境、对营养物和自由能的约束以及元素可用性。通过考察行星表面光子驱动生物计算以及恒星能量捕获结构（又称戴森结构）中广义计算的基本热力学功效率和兰道尔极限，给出了两个示例应用。文中提出，涉及嵌套结构或亚恒星对象的计算区可能表现出独特的观测特征，即作为低温远红外发射体。虽然后一种情形完全是假设性的，但它们为计算区的潜在普适性提供了一个有用的、互补性的引入。
英文摘要：
Computation, if treated as a set of physical processes that act on information represented by states of matter, encompasses biological systems, digital systems, and other constructs, and may be a fundamental measure of living systems. The opportunity for biological computation, represented in the propagation and selection-driven evolution of information-carrying organic molecular structures, has been partially characterized in terms of planetary habitable zones based on primary conditions such as temperature and the presence of liquid water. A generalization of this concept to computational zones is proposed, with constraints set by three principal characteristics: capacity (including computation rates), energy, and instantiation (or substrate, including spatial extent). Computational zones naturally combine traditional habitability factors, including those associated with biological function that incorporate the chemical milieu, constraints on nutrients and free energy, as well as element availability. Two example applications are presented by examining the fundamental thermodynamic work efficiency and Landauer limit of photon-driven biological computation on planetary surfaces and of generalized computation in stellar energy capture structures (a.k.a. Dyson structures). It is suggested that computational zones involving nested structures or substellar objects could manifest unique observational signatures as cool far-infrared emitters. While these latter scenarios are entirely hypothetical, they offer a useful, complementary, introduction to the potential universality of computational zones.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
