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| bio | website | juanrga.com |
|---|---|---|
| location | Vigo, Galicia, Spain, Europe | |
| age | ||
| visits | member for | 7 months |
| seen | 22 hours ago | |
| stats | profile views | 360 |
My name is Juan Ramón González Álvarez. I studied physics and chemistry at UVIGO, worked for some scientific bodies such as ANQUE, did early research in biogeochemistry and hydrodynamics of rias at CSIC, but now work in a unified formulation of physics chemistry and biology. My last research can be found at academia.edu
I am the owner of juanrga.com: an innovative site mainly devoted to sharing unified knowledge in pure and applied sciences. Enjoy the open educational resources and peer-reviewed articles.
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Mar 26 |
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Newtonian Mechanics and Quantum mechanics @kiranadhikari Classical mechanics (CM) can be considered a subset of quantum mechanics (QM). You can formulate QM like CM plus a set of quantum corrections: Quantum Hamilton-Jacobi equation, Quantum force, Phase space quantum mechanics |
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Mar 25 |
answered | Why are electrons consider waves? |
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Mar 25 |
answered | Does our local time speed up as the Universe expands? |
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Mar 25 |
answered | Alternative methods to derive the static potential in the NR limit of QED |
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Mar 25 |
answered | Newtonian Mechanics and Quantum mechanics |
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Mar 25 |
answered | Advanced Heaviside-Feynman formula implies electromagnetic inertia? |
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Mar 25 |
answered | Why isn't the Bekenstein-Hawking Entropy considered the quantum gravitational unification? |
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Mar 25 |
answered | Is the movement of electrons truly random? |
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Mar 24 |
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Cardinality of the Universes Set There is not one 'interpretation' but several mutually incompatible 'interpretations'. Second, each one of them has been shown to be wrong. Check Against Many-Worlds Interpretations. A physics FAQ for general public is available here. |
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Feb 25 |
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comments on entropy and direction of time in Landau and Lifshitz stat mech @MarkMitchison 2) You can meet people who believes that Earth is flat and people who believes on creationism or on Jaynes' work. Let me emphasize I was considering here his incorrect physical works (such as the paper that you cited above). Recall this is not a philosophy forum; I am not going to explain here why his philosophical ideas about determinism and related issues are plain wrong as well. |
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Feb 25 |
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comments on entropy and direction of time in Landau and Lifshitz stat mech @MarkMitchison 1) After a series of mistaken comments they give the Boltzmann constant in "erg/deg". Let us forget the ancient ergs; they claim that temperature is "measured" in "degrees Kelvin", denoting them by "deg". There is not such thing, the temperature unit is "kelvin" --not caps--, which is not a degree, and whose symbol is "K" --neither "ºK" nor "deg"--. You can learn those elementary facts about units and constants here and here |
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Feb 24 |
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comments on entropy and direction of time in Landau and Lifshitz stat mech @MarkMitchison Yes, aliens apart, there is a worldwide conspiracy against him. The problem is that Nature is also involved in the conspiracy obligating him to revise his pseudo-anthropomorphic theories each time them are falsified. The conspiracy involves minor organizations as CODATA still listing $k_\mathrm{B}$ in their "recommended values of the fundamental physical constants" and virtually any textbook on physics reproducing them... |
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Feb 24 |
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Can we write down a dynamical law of physics which is totally non-deterministic? To elaborate a bit more. The Langevin equation for a single system is $\tilde{F}=m\tilde{a}$, which is non deterministic because both $\tilde{F}$ and $\tilde{a}$ are random. If we take averages on both sides we recover the deterministic $F=ma$ with $F=\langle\tilde{F}\rangle$ and $a=\langle\tilde{a}\rangle$. Thus the ensemble behaves deterministically because we are averaging out the random fluctuations, but each individual system continues being non-deterministic. |
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Feb 24 |
answered | Can we write down a dynamical law of physics which is totally non-deterministic? |
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Feb 24 |
answered | Equivalence between QFT and many-particle QM |
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Feb 18 |
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comments on entropy and direction of time in Landau and Lifshitz stat mech @MarkMitchison Citing another wrong and outdated paper is of no help. Several modern textbooks discuss Jaynes' mistakes and his unphysical theories... |
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Feb 18 |
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Theoretical treatment of Hydrogen bond? @Goku I do not know what Boeyens is doing, but as explained above Bohm theory is QM and gives the same experimental results than any other formulation of QM: Nine formulations of quantum mechanics |
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Feb 18 |
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Theoretical treatment of Hydrogen bond? @Goku Bader charges are only a small part of Bader theory. Moreover, Bader charges are rigorously derived from electron densities through the QM of open systems, whereas the old Mulliken charges are only formal charges obtained in an arbitrary ad hoc way from the unobservable wavefunctions. This ambiguity generates different Mulliken charges (net, gross...) and their lack of foundation the well-known unphysical results... |
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Feb 18 |
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comments on entropy and direction of time in Landau and Lifshitz stat mech @MarkMitchison That paper is full of misconceptions. I will not repeat what said. I will add that entropy is a physical quantity with associated units: joule per kelvin in the SI. Physical entropy would not be confounded with the ill-defined concept of informational 'entropy' used in the theory of information. |
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Feb 18 |
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comments on entropy and direction of time in Landau and Lifshitz stat mech @MarkMitchison No. $k_\mathrm{B}$ is one of the fundamental constants introduced in the SI. The above table gives the last recommended value of $k_\mathrm{B}$. For a more formal reference, but giving the old value of $k_\mathrm{B}$, check the page 1239 of the reference [2] cited therein: "CODATA recommended values of the fundamental physical constants" Of course the value depends of the units chosen; both references use SI units. |
