Academic Journal

On the Supposed Mass of Entropy and That of Information

التفاصيل البيبلوغرافية
العنوان: On the Supposed Mass of Entropy and That of Information
المؤلفون: Didier Lairez
المصدر: Entropy, Vol 26, Iss 4, p 337 (2024)
بيانات النشر: MDPI AG
سنة النشر: 2024
المجموعة: Directory of Open Access Journals: DOAJ Articles
مصطلحات موضوعية: thermodynamics, information theory, Landauer’s principle, Science, Astrophysics, QB460-466, Physics, QC1-999
الوصف: In the theory of special relativity, energy can be found in two forms: kinetic energy and rest mass. The potential energy of a body is actually stored in the form of rest mass, the interaction energy too, but temperature is not. Information acquired about a dynamical system can be potentially used to extract useful work from it. Hence, the “mass–energy–information equivalence principle” that has been recently proposed. In this paper, it is first recalled that for a thermodynamic system made of non-interacting entities at constant temperature, the internal energy is also constant. So, the energy involved in a variation in entropy ( T Δ S ) differs from a change in the potential energy stored or released and cannot be associated to a corresponding variation in mass of the system, even if it is expressed in terms of the quantity of information. This debate gives us the opportunity to deepen the notion of entropy seen as a quantity of information, to highlight the difference between logical irreversibility (a state-dependent property) and thermodynamical irreversibility (a path-dependent property), and to return to the nature of the link between energy and information that is dynamical.
نوع الوثيقة: article in journal/newspaper
اللغة: English
تدمد: 1099-4300
Relation: https://www.mdpi.com/1099-4300/26/4/337; https://doaj.org/toc/1099-4300; https://doaj.org/article/bf209f2ae5464e9582de95a32e7c8eff
DOI: 10.3390/e26040337
الاتاحة: https://doi.org/10.3390/e26040337
https://doaj.org/article/bf209f2ae5464e9582de95a32e7c8eff
رقم الانضمام: edsbas.96918564
قاعدة البيانات: BASE
الوصف
تدمد:10994300
DOI:10.3390/e26040337