Is Direct Brute Force Quantization Possible for Equations of Motion?

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This discussion centers on the feasibility of direct brute force quantization methods for equations of motion, specifically questioning the possibility of quantizing without relying on Hamiltonians or Lagrangians. The conversation highlights the Hellman-Feynman theorem's limitations regarding quantized forces and introduces the Madelung interpretation of quantum mechanics as a potential framework. A proposed relationship between the Navier-Stokes equations and the Hamilton-Jacobi equation of Bohmian mechanics is presented as a novel approach to quantization in general force fields. The participants express interest in further exploration of this topic, particularly regarding its originality and potential publication.

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  • Familiarity with the Navier-Stokes equations and their applications in fluid dynamics.
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  • Awareness of the Hellman-Feynman theorem and its implications in quantum mechanics.
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lokofer
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"Brute force" quantization..

Let's suppose we have the "Equation of motions" for a particle:

[tex]F(y'',y',y,x)=0[/tex] my question is if exsit a "direct" method to apply quantization rules..for example simply stating that:

[tex]F(y'',y',y,x)| \psi (x) >=0[/tex] or something similar.

- I'm not talking about the usual method (you use the Hamiltonian operator to get the Wave function) but a method to "Quantize" everything without using Hamiltonians or Lagrangians only with the equation of motion and similar...thanks.
 
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The Hellman-feynman theorem deals with the quantum mechanics of forces, but no, there is no procedure which involves quantised forces.
 
Epicurus said:
The Hellman-feynman theorem deals with the quantum mechanics of forces, but no, there is no procedure which involves quantised forces.

Well, I don't know about that theorem, but I was once thinking about quantum mechanics as a probability fluidum (the Madelung interpretation), something I never published since I cannot believe it has not been done yet. In this case, let [tex]R^2[/tex] be the ``mass´´ density and [tex]\partial_{\mu} S[/tex] be the integrable fluid velocity field. Then, the traditional navier stokes equation is:
[tex]R^2 \partial_t \partial_{\alpha}S + R^2 \partial_{\beta} S \partial_{\beta} \left( \partial_{\alpha} S \right) = \frac{R^2}{m} F_{\alpha} - \partial_{\alpha} p + \partial^{\beta} T_{\beta \alpha}[/tex] and the usual continuity equation
[tex]\partial_t R^2 + \partial^{\alpha} \left( R^2 \partial_{\alpha} S \right) = 0[/tex]
Now, let the pressure [tex]p = - \frac{1}{2m^2} \left( R \partial_{\beta} \partial^{\beta }R - \frac{1}{3} \partial_{\beta} R \partial^{\beta} R \right)[/tex] and the stress tensor
[tex]T_{\alpha \beta} = - \frac{1}{m^2} \left( \partial_{\alpha}R \partial_{\beta} R - \frac{1}{3} \delta_{\alpha \beta} \partial_{\gamma} R \partial^{\gamma} R \right)[/tex] then it is easy to prove that
with [tex]F_{\alpha} = - \partial_{\alpha} V[/tex], the Navier Stokes equation gives rise to the Hamilton Jacobi equation of Bohmian mechanics. Hence, this provides a general scheme for quantization of particles in general force fields. If you definitely know this has not been done yet, give me a sign and I will post the ``paper'' on the arxiv.

It seems to me you cannot quantize general force fields (in the case of instantaneous action at a distance, there are no traveling waves, hence no particles), only those which can be derived from a (eventually distributional) field theory seem to be meaningful.

Careful
 
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