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Steve Dufourny: on 6/21/21 at 13:10pm UTC, wrote Hello, I liked a lot your ideas and expliantions, the technologies...

Natalia Ares: on 6/21/21 at 1:32am UTC, wrote Abstract: Understanding how thermodynamics operates at small scales, where...


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FQXi BLOGS
December 7, 2021

CATEGORY: Blog [back]
TOPIC: Electromechanics for thermodynamics at the nano-scale by Natalia Ares [refresh]
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Blogger Natalia Ares wrote on Jun. 21, 2021 @ 01:32 GMT
Abstract:

Understanding how thermodynamics operates at small scales, where fluctuations are significant and quantum behaviour arises, may reveal possibilities for entirely novel technologies. We can explore thermodynamics in this limit by combining exquisite control over mechanical degrees of freedom and the quantum states of confined electrons. I will show how to detect the displacement of a carbon nanotube approaching the standard quantum

limit near the phonon ground state [1-2]. With quantum dots embedded in a carbon nanotube, we were able to explore the impact of electron tunnelling in the nanotube’s mechanical energy, evidenced by the excitation of coherent self-oscillations [3]. I will discuss the potential of these findings to pave the way for experiments on quantum thermodynamics, in particular, for direct measurements of work exchange.

References

[1] N. Ares et al. Physical Review Letters 117, 170801 (2016)

[2] Y. Wen et al. Applied Physics Letters 113, 153101 (2018)

[3] Y. Wen et al. Nature Physics 16, 75 (2020)



Keywords: #quantum #thermodynamics #nanodevices #IAF

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Steve Dufourny wrote on Jun. 21, 2021 @ 13:10 GMT
Hello, I liked a lot your ideas and expliantions, the technologies correlated indeed can be very relevant in the details of this thermo. I consider the heat and thermodynamics like the QFT so important universally speaking. I have studied a lot several books of Zemanski about the laws of thermodynamics. I have considered 3 main finite primoridal series in my model of spherisation, an optimisation evolution of the universal sphere or future sphere with quantum and cosmological 3D spheres . The series oddly having the same number than the cosmological finite serie of spheres, the dirac large number. I have considered the main codes in the space vacuum of the DE, and the two others are fuels, the photons and the cold dark matter, we have so like 3 ethers and when they merge they create the fields, geometries, matters,topologies.The fact that the space vacuum possesses the main codes and that the two others are encoded permit a distribution of cold and heat and permit the properties thermodynamicl of matters, that is why the water is the water with its properties of cold and heat and the liquid, solid, gas. Your ideas are very interesting about the small scales and the fractalisations of these distributed thermos can be better understood. I have also remarked that the volumes preserved of spheres and the densities can be very relevant when we consider the encodings of informations. Regards and congrats for your ideas and works.

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