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#thermodynamics

1 post1 participant1 post today
Public
Philo Sophies

#Zoomposium with Prof. Dr. #Arieh #Ben-#Naim: “#Enchantment of #Entropy”

He assumes that we need a new basic #understanding of the #phenomenon of entropy. In Arieh's view, entropy, which originally stems from the 2nd #main #theorem of #thermodynamics, has been misused and incorrectly transferred as a #concept to other areas of #physics, #biology and everyday #life.

Read more at: philosophies.de/index.php/2024

or: youtu.be/Km88EreH4A8

portrait of Arieh Ben-Naim
Public *
j_bertolotti

#PhysicsJournalClub
"Temperature as joules per bit"
by C.A. Bédard, S. Berthelette, X. Coiteux-Roy, and S. Wolf

Am. J. Phys. 93, 390 (2025)
doi.org/10.1119/5.0198820

Entropy is an important but largely misunderstood quantity. A lot of this confusion arise from its original formulation within the framework of Thermodynamics. Looking at it from a microscopic point of view (i.e. approaching it as a Statistical Mechanics problem) makes it a lot more digestible, but its ties to Thermodynamics still creates a lot of unnecessary complications.
In this paper the authors suggest that by removing the forced connection between entropy and the Kelvin temperature scale, one can rethink entropy purely in terms of information capacity of a Physical system, which takes away a lot of the difficulties usually plaguing the understanding of what entropy is actually about.
I don't think the SI will ever consider their suggestion to remove Kelvins as a fundamental unit and include bits, but this paper will be a great boon to any student banging their head against the idea of entropy for the first (or second, or third) time.

#Physics#Entropy#Thermodynamics
Public
Mikko Tuomi

An interdisciplinary team of researchers has proposed nothing less than a new law of #nature, according to which the #complexity of entities in the #universe increases over time with an inexorability comparable to the second law of #thermodynamics — the law that dictates an inevitable rise in entropy, a measure of disorder.

If they’re right, complex and intelligent #life should be widespread.

#astrobiology #physics
quantamagazine.org/why-everyth

Quanta Magazine · Why Everything in the Universe Turns More Complex | Quanta MagazineA new suggestion that complexity increases over time, not just in living organisms but in the nonliving world, promises to rewrite notions of time and evolution.
Public
Philo Sophies

#Zoomposium with Prof. Dr. #Arieh #Ben-#Naim: “Demystifying #Entropy”

Information about the person and his scientific work

In another installment of our “Zoomposium series” on the topic of #physics and its #limits, my colleague Axel Stöcker from the “Blog der großen Fragen” and I had the opportunity to interview the renowned Israeli physical chemist Prof. Dr. Arieh Ben-Naim on the exciting topic of “Demystifying Entropy”.

Arieh, who was born on July 11, 1934, held a chair in #Physical #Chemistry at the Hebrew University of Jerusalem for over 40 years, with his main field of research being the theory of the #structure of #water, aqueous solutions and hydrophobic-hydrophilic interactions. He was mainly concerned with theoretical and experimental aspects of the general theory of #liquids and #solutions. In recent years, he has advocated the use of #information theory to better understand and advance #statistical #mechanics and #thermodynamics.

In this context, he has also worked intensively on the question of the nature and underlying principle of the phenomenon of #entropy, which he has published in numerous often cited but also controversially discussed popular science books.

The basic tenor of all his publications and lectures is that we need a new basic understanding of the phenomenon of entropy. In Arieh's view, entropy, which originally stems from the laws of #thermodynamics and in particular the 2nd law, has been misused and incorrectly transferred as a #concept to other areas of #physics, #biology and everyday #life.

In this respect, it was finally time (bon mot) to ask the author himself about his ground-breaking theses, which cast a different light on the #phenomenon of entropy or perhaps better said, bring entropy back to its place of origin.

The interview we conducted with him is in English.

Find out more at: philosophies.de/index.php/2024

or: youtu.be/Km88EreH4A8

photo of Arieh Ben-Naim
Public
rexi

phys.org/news/2025-03-physicis

"This work connects the dots among the great pillars of twentieth century #physics #thermodynamics, #relativity, and #quantummechanics—for a major paradigm shift…implications of quantum information processing in wetware at ambient temperatures," said Kurian.

"Physicists and cosmologists should wrestle with these findings, especially as they consider the origins of life on Earth and elsewhere in the habitable universe, evolving in concert with the electromagnetic field."

phys.orgPhysicist revisits the computational limits of life and Schrödinger's essential question in the era of quantum computingMore than 80 years ago, Erwin Schrödinger, a theoretical physicist steeped in the philosophy of Schopenhauer and the Upanishads, delivered a series of public lectures at Trinity College, Dublin, which eventually came to be published in 1944 under the title "What is Life?"
Public
Maabur

Can cells break the laws of thermodynamics?
Our preprint investigates the current scientific controversy. Using our nanosensor, we addressed unexpected artifacts and measured temperature with record accuracy inside cells.
researchsquare.com/article/rs-
The remarkable work from P. Maurer's lab also independently reports similar artifacts.
arxiv.org/abs/2503.20816
#quantumsensing #nanodiamond #NVcentre #arxiv #thermodynamics #nanothermometry #nanotechnology #research #quantum #science #preprint

www.researchsquare.comInvestigating intracellular heating rates with millikelvin nanothermometryNanothermometry within living cells is an important endeavour in physics,as the mechanisms of heat diffusion in such complex and dynamic environments remain poorly understood. In biology, nanothermometry may offer new insights into cellular biology and open new avenues for drug-discovery. Previou...
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