👓 First Support for a Physics Theory of Life | Quanta Magazine

First Support for a Physics Theory of Life by Natalie Wolchover (Quanta Magazine)

Take chemistry, add energy, get life. The first tests of Jeremy England’s provocative origin-of-life hypothesis are in, and they appear to show how order can arise from nothing.

Interesting article with some great references I’ll need to delve into and read.


The situation changed in the late 1990s, when the physicists Gavin Crooks and Chris Jarzynski derived “fluctuation theorems” that can be used to quantify how much more often certain physical processes happen than reverse processes. These theorems allow researchers to study how systems evolve — even far from equilibrium.

I want to take a look at these papers as well as several about which the article is directly about.


Any claims that it has to do with biology or the origins of life, he added, are “pure and shameless speculations.”

Some truly harsh words from his former supervisor? Wow!


maybe there’s more that you can get for free

Most of what’s here in this article (and likely in the underlying papers) sounds to me to have been heavily influenced by the writings of W. Loewenstein and S. Kauffman. They’ve laid out some models/ideas that need more rigorous testing and work, and this seems like a reasonable start to the process. The “get for free” phrase itself is very S. Kauffman in my mind. I’m curious how many times it appears in his work?

👓 First Support for a Physics Theory of Life | Quanta Magazine was originally published on Chris Aldrich

👓 The Quantum Thermodynamics Revolution | Quanta Magazine

The Quantum Thermodynamics Revolution by Natalie Wolchover (Quanta Magazine)

As physicists extend the 19th-century laws of thermodynamics to the quantum realm, they’re rewriting the relationships among energy, entropy and information.

👓 The Quantum Thermodynamics Revolution | Quanta Magazine was originally published on Chris Aldrich | Boffo Socko

🔖 H-theorem in quantum physics by G. B. Lesovik, et al.

🔖 H-theorem in quantum physics by G. B. Lesovik, et al.

Abstract

Remarkable progress of quantum information theory (QIT) allowed to formulate mathematical theorems for conditions that data-transmitting or data-processing occurs with a non-negative entropy gain. However, relation of these results formulated in terms of entropy gain in quantum channels to temporal evolution of real physical systems is not thoroughly understood. Here we build on the mathematical formalism provided by QIT to formulate the quantum H-theorem in terms of physical observables. We discuss the manifestation of the second law of thermodynamics in quantum physics and uncover special situations where the second law can be violated. We further demonstrate that the typical evolution of energy-isolated quantum systems occurs with non-diminishing entropy. [1]

Footnotes

[1]
G. B. Lesovik, A. V. Lebedev, I. A. Sadovskyy, M. V. Suslov, and V. M. Vinokur, “H-theorem in quantum physics,” Scientific Reports, vol. 6. Springer Nature, p. 32815, 12-Sep-2016 [Online]. Available: http://dx.doi.org/10.1038/srep32815

🔖 H-theorem in quantum physics by G. B. Lesovik, et al. was originally published on Chris Aldrich

A New Thermodynamics Theory of the Origin of Life | Quanta Magazine

A New Thermodynamics Theory of the Origin of Life | Quanta Magazine

References:

Hypothesis annotations

[ hypothesis user = 'chrisaldrich' tags = 'EnglandQM']

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A New Thermodynamics Theory of the Origin of Life | Quanta Magazine was originally published on Chris Aldrich | Boffo Socko

Matter, energy… knowledge: How to harness physics’ demonic power | New Scientist

Matter, energy… knowledge: How to harness physics’ demonic power | New Scientist

Matter, energy… knowledge: How to harness physics' demonic power by Stephen Battersby(New Scientist)

Running a brain-twisting thought experiment for real shows that information is a physical thing – so can we now harness the most elusive entity in the cosmos?

This is a nice little overview article of some of the history of thermodynamics relating to information in physics and includes some recent physics advances as well. There are a few references to applications in biology at the micro level as well.

References

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Matter, energy… knowledge: How to harness physics’ demonic power | New Scientist was originally published on Chris Aldrich