Mehta Pankaj, Kondev Jane
ArXiv. 2025 Sep 11:arXiv:2509.09892v1.
In the 1970s, the renowned physicist Victor Weisskopf famously developed a research program to qualitatively explain properties of matter in terms of the fundamental constants of physics. But there was one type of matter prominently missing from Weisskopf's analysis: life. Here, we develop Weisskopf-style arguments demonstrating how the fundamental constants of physics can be used to understand the properties of living systems. By combining biophysical arguments and dimensional analysis, we show that vital properties of chemical self-replicators, such as growth yield, minimum doubling time, and minimum power consumption in dormancy, can be quantitatively estimated using fundamental physical constants. The calculations highlight how the laws of physics constrain chemistry-based life on Earth, and if it exists, elsewhere in our universe.
20世纪70年代,著名物理学家维克托·魏斯科普夫开创性地开展了一项研究计划,旨在从物理学基本常数的角度定性解释物质的性质。但魏斯科普夫的分析中明显遗漏了一种物质:生命。在此,我们运用类似魏斯科普夫的论证方法,展示如何利用物理学基本常数来理解生命系统的性质。通过结合生物物理学论证和量纲分析,我们表明,化学自复制体的关键性质,如生长产量、最短倍增时间和休眠时的最低功耗,都可以用基本物理常数进行定量估算。这些计算突出了物理定律如何在地球上以及宇宙其他可能存在生命的地方对基于化学的生命形成限制。