Problem with this renormalize quantum theory

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Discussion Overview

The discussion revolves around the concepts of renormalization and normalization in quantum theory, specifically questioning the validity and implications of renormalizing functions after solutions are found. The scope includes theoretical aspects of quantum mechanics and the foundational principles governing wavefunctions.

Discussion Character

  • Debate/contested, Conceptual clarification

Main Points Raised

  • One participant expresses confusion about the process of renormalization, questioning how it is justified to renormalize functions after solutions are obtained and whether all possible solutions have been identified.
  • Another participant distinguishes between normalization and renormalization, suggesting that normalization is necessary for wavefunctions to comply with quantum mechanics laws, specifically regarding probabilities.
  • A third participant reiterates the need for normalization as a fundamental principle of quantum mechanics, emphasizing that normalization helps identify physically acceptable solutions among the infinite solutions of the Schrödinger equation.

Areas of Agreement / Disagreement

Participants exhibit some agreement on the necessity of normalization in quantum mechanics, but there is ongoing debate regarding the justification and implications of renormalization. The discussion remains unresolved regarding the completeness of solutions in quantum theory.

Contextual Notes

The discussion highlights potential limitations in understanding the definitions and implications of normalization and renormalization, as well as the assumptions underlying the completeness of solutions in quantum mechanics.

somy
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Hi.
I have a problem with this quantum theory, that is going to make me crazy!:
Why we are allowed to renormalize every function after we find the solution.
I mean, how we are sure that we have found all the solution exists.
Thanks in advance.
Somy :smile:
 
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Are you talking about renormalizing or normalizing ?

You can normalize a wavefunction, and renormalize a field theory.
 
somy said:
Hi.
I have a problem with this quantum theory, that is going to make me crazy!:
Why we are allowed to renormalize every function after we find the solution.
I mean, how we are sure that we have found all the solution exists.
Thanks in advance.
Somy :smile:

Wavefunctions need to normalized in order to obey tha basic laws of QM. One of these laws is that if you square a wavefunction, you get a probability(eg : for finding a particle described by the wavefunction in some region). The maximal value of a probability is 1...

marlon
 
somy said:
Why we are allowed to renormalize every function after we find the solution.

As Gokul pointed out it's "normalize".It's the first principle of QM.It says why we mmust normalize the solutions.

I mean, how we are sure that we have found all the solution exists?

In general,the condition of normalization fixes the physically acceptable solutions out of the infinite number of solutions the Schrödinger equation can have...

Daniel.
 

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