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2nd Law of Thermodynamics Law Challenged by a Tiny Quantum Engine

2025-10-29 Science & Technology
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Anton Petrov
Anton Petrov
1.6m subscribers

Quantum Mechanics Challenges the Carnot Limit in Heat Engines

Discover how microscopic quantum engines might break the efficiency ceiling established by classical thermodynamics, offering a glimpse into future ultra-efficient technology.

Short Summary

  • Quantum correlations act as an unlockable energy source separate from traditional heat input.
  • New theoretical laws govern atomic-scale heat engines, enabling work extraction from entropic sources.
  • Simulations confirm that "athermal" processes can yield efficiency improvements surpassing the classical Carnot limit.
  • Future work focuses on sustaining these temporary efficiency boosts for practical applications.

This discussion explores the 200-year-old constraints of heat engines, formalized by Sadi Carnot, and contrasts them with recent breakthroughs in quantum thermodynamics. Understanding these quantum nuances opens doors to highly precise, potentially ultra-efficient microscopic technologies like nanobots.

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Description

Support this channel on Patreon to help me make this a full time job: https://www.patreon.com/whatdamath (Unreleased videos, extra footage, DMs, no ads) Alternatively, PayPal donations can be sent here: http://paypal.me/whatdamath Get a Wonderful Person Tee: https://teespring.com/stores/whatdamath More cool designs are on Amazon: https://amzn.to/3QFIrFX Hello and welcome! My name is Anton and in this video, we will talk about an experiment that tries to challenge 2nd law of thermodynamics and the Carnot theorem of heat engines by using quantum machines Links: http://science.org/doi/10.1126/sciadv.adw8462 https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.130.240401 https://en.wikipedia.org/wiki/Quantum_heat_engines Peterson et al. https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.123.240601 Quantum videos: https://youtu.be/0KSB8_UqPpk https://youtu.be/aaQAl5Vv9Kk https://youtu.be/v74TyFFegoM 0:00 Challenging laws of thermodynamics with quantum physics 1:50 Sadi Carnot and the father of heat engine 3:55 Carnot theorem with microscopic particle 5:00 First studies on quantum engines 6:55 Do same rules apply to this quantum world? 7:40 Quantum correlation principles 8:35 Recent study focused on extracting quantum energy 10:20 Why this matters and what this means 12:40 Conclusions and what's next? #quantum #mechanics #heatengine Enjoy and please subscribe Bitcoin/Ethereum to spare? Donate them here to help this channel grow! bc1qnkl3nk0zt7w0xzrgur9pnkcduj7a3xxllcn7d4 or ETH: 0x60f088B10b03115405d313f964BeA93eF0Bd3DbF Thank you to all Patreon supporters of this channel Special thanks also goes to all the wonderful supporters of the channel through YouTube Memberships Licenses used: https://creativecommons.org/licenses/by/4.0/ and relevant Creative Commons licenses

Top Comments (10)

@ashenbreese 2025-10-29

it always bothers me when people say that some natural phenomenon has "violated the laws of physics," as if human models determine how nature works rather than form the actual basis of what humans are attempting to model. if our models have been violated, then our models are simply incorrect and need updated.

626 96 replies
@devils_advocate_88 2025-10-29

At least it's not "Dark" thermodynamics

291 24 replies
@basqye9 2025-10-29

At this point the universe is just trolling us.

199 14 replies
@existenceisillusion6528 2025-10-29

The impossibility of a 100% efficient heat engine applies to more than just engines with pistons. It's anything that works on a temperature difference.

123 14 replies
@lunequedelrio3646 2025-10-29

Fast and Furious Ep512 - The Quantum Mechanics Engine and the Entangled Family

106 4 replies
@Rigel66 2025-10-30

bro you had me at tiny quantum engine

92
@jinsetayinsei4146 2025-10-30

Wow. I'm going to need a really small wrench set.

63 5 replies
@onehitpick9758 2025-10-30

Maxwell's Demon is back. We just need a bunch of entangled tiny robots that close when they detect atoms trying to leave a chamber through tiny windows.

59 2 replies
@Martiandawn 2025-10-30

So, Earth has wizards now 🤣

3
@dtwids 2025-11-02

I love that you start every video with "hello wonderful person" - thank you for that Anton, you amazing brained wonderful person :) And while I'm here, thank you for the hundreds of hours of videos youve made, you've informed be on all sorts of stuff and kept me entertained, I've a lot of respect and appreciation for you!!

1

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