Continuity of the wave function

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SUMMARY

The continuity of the wave function and its first derivative is a debated topic in quantum mechanics, with various perspectives presented. Some argue that continuity is essential for defining probabilities and ensuring the wave function's physical significance, while others, like the proponents of Dirac delta functions, suggest that discontinuities can still yield valid quantum states. The discussion highlights the implications of the Schrödinger equation, emphasizing that a wave function must be twice differentiable to maintain well-defined energy eigenvalues. Ultimately, continuity is argued to be fundamental for the probability interpretation of quantum mechanics.

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  • Understanding of the Schrödinger equation and its implications in quantum mechanics
  • Familiarity with wave functions and their properties in quantum theory
  • Knowledge of Dirac delta functions and their role in quantum mechanics
  • Basic concepts of eigenvalues and eigenstates in quantum systems
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  • Research the mathematical properties of distributions and their application in quantum mechanics
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Physicists, quantum mechanics students, and researchers interested in the foundational aspects of wave functions and their mathematical properties in quantum theory.

  • #31
actually i have my exam and i am really weak in quantum mechanics ... i would like to know another question sir ... i know the physical meaning of normalization , will you please tell me the physical meaning of orthogonality ? i have one more small assignment too .. i tried but unable to do ... the question is that if H is an operator of an eigen function U1 with eigen value E1 and H is an operator of an eigen function U2 with eigen value E2 then show that H is also an operator of the eigen function U1+U2.
 
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  • #32
pi11 said:
actually i have my exam and i am really weak in quantum mechanics ... i would like to know another question sir ... i know the physical meaning of normalization , will you please tell me the physical meaning of orthogonality ? i have one more small assignment too .. i tried but unable to do ... the question is that if H is an operator of an eigen function U1 with eigen value E1 and H is an operator of an eigen function U2 with eigen value E2 then show that H is also an operator of the eigen function U1+U2.

This really belongs in the homework help section.

But I will answer the orthogonality question by asking you to apply the Born rule to orthogonal states.

Since they are eigenfunctions H*U1 = E1*U1 and H*U1 = E1*U1 so H*(U1 +U2) = H*(E1 + E2) so E1 + E2 is an eigenvalue of H with eigenfunction U1+U2.

Thanks
Bill
 

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