Posted on 12/30/2019 6:08:13 PM PST by BenLurkin
The theoretical notion of a 'quantum heat engine' has been around for several decades. It was first introduced around sixty years ago by Scovil and Schulz-DuBois, two physicists at Bell Labs who drew an analogy between three-level masers and thermal machines.
In the years that followed, other researchers have developed a variety of theories building on the ideas of Scovil and Schulz-DuBois, introducing proposals of thermodynamic cycles at the quantum scale. Very recently, physicists have started testing some of these theories in experimental settings.
One of these experiments was carried out by a team of researchers at the University of Waterloo, Universidade Federal do ABC and Centro Brasileiro de Pesquisas Físicas, who successfully demonstrated a spin quantum heat engine in a laboratory setting. Their paper, published in Physics Review Letters, outlines the implementation of a heat engine based on a spin-1/2 system and nuclear magnetic resonance techniques.
In their experiment, Serra and his colleagues successfully implemented a proof-of-principle quantum heat engine using a nuclear spin placed in a chloroform molecule and nuclear magnetic resonance techniques. The researchers specifically manipulated the nuclear spin of a Carbon 13 isotope using a radiofrequency field, ultimately producing an Otto cycle (i.e., the thermodynamic cycle used in most common motors).
"In the present experiment, we were able to characterize all energy fluctuations in work and heat, besides the irreversibility at the quantum scale...Fast operation of our molecular machine produces transitions between the spin energy states, which are related to what we call 'quantum friction' that reduces performance. This kind of friction is also associated with an increase in entropy...."
(Excerpt) Read more at phys.org ...
Bump for later
Does the chloroform molecule knock out the nuclear spin or the nuclear magnetic resonance?
My favorite part was the part that said this could lead to something that could lead to something.
I think they hope it leads to a Grant particles in their In box.
“Producing an Otto cycle”
Those are great cycles.
“If the chain don’t break.”
Hmmm... Thought the roulette wheels in Vegas were already generating power using quantum spin...
The world needs more energetic radio waves.
Gosh.
I haven’t seen a Weasel Squeezer in ages.
Nothing like a warm glass of Weasel Squeezings on a cold winter night.
You put that weasel Comey in that Weasel Squeezer, and I’ll bet you could get five or six gallons of Weasel Squeezings out of him.
I’d be willing to run the crank.
Best conclusion of their last statement is that fast operation of their molecule machine produces too much friction to be operational.
The Ancient Aliens are way beyond this primitive technology.
Well this is real spiffy and all, but would someone tell me what the hell happened to the cold fusion device that was so hyped hear not all that long ago? I want to know why we don’t have our homes and cars powered right now by Mr. Fusion devices and we are still hearing about solar and sky fart power instead.
I see a problem right off the bat.
Your lily pads are reversed.
Yeah, I need help understanding this article as well. Anyone?
Generate a quantum waveform through a split experiment in such a way that the results all hit a highly reflective background. Angle that background perfectly to reflect particles back against against the split barrier and then to all arrive at the same location on one side in multiples of planck constants. Have that location be a highly absorbent fin of a turbine. And you should be able to achieve quantum thrust equal to or less than the energy provided to the waveform.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.