User talk:Chetan666

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Schrödinger equation‎
All the Time-Dependent Schrodinger equations given in the webpage have a potential given as V(r,t). Is it not wrong to write it that way. Though the wave-function is time evolving, the potential is not time dependent. This issue is there at lots of places on the webpage.


 * Hi, sorry to revert twice but the time-dependence in the potential of the non-relativistic SE is what makes it time-dependent.


 * If the potential is time-independent, then separation of variables leads to the time-independent equation to be solved for the spatial wavefunction, another equation which has the solution of a time-dependent phase factor, and the overall wavefunction is this phase factor times the spatial wavefunction.


 * If the potential has time-dependence, then you can't use separation of variables, the wavefunction is not just a product of a spatial wavefunction and a time-dependent phase factor, and the full time-dependent equation (including the time derivative) must be solved by other methods - perturbation theory (quantum mechanics) is one of them.


 * This link you added gets the first time-dependent equation wrong, the time-independent equation below has the correct form. In any case, Hyperphysics is not really a reliable secondary source, but sometimes useful for external links. M&and;Ŝc2ħεИτlk 12:23, 8 August 2015 (UTC)

Hi, agreed with what you are saying. The time-dependent perturbation theory revolves around it, Thanks for your reply.--Chetan666 (talk) 08:55, 10 August 2015 (UTC)


 * Most time-dependent potentials can't be solved exactly and need methods like perturbation theory, but there are exactly solvable examples. At some point an example of an exactly solvable time-dependent potential should be added to the article, such as a spin-1/2 particle in a rotating uniform magnetic field (note the potential does change with time). Thanks for prompting this, it would be valuable for many people. M&and;Ŝc2ħεИτlk 09:38, 10 August 2015 (UTC)

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 * Hi Chetan666! We're so happy you wanted to play to learn, as a friendly and fun way to get into our community and mission.  I think these links might be helpful to you as you get started.
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-- 09:00, Monday, August 10, 2015 (UTC)