Wave Packets and Dispersion Relationships

[@saythetruth5205]

What an excellent explanation of group and phase velocities. Good job. Thank you.

[@chenyangan6479]

Extraordinarily clear, down to earth. I know almost nothing in physics but I understand every word of the video

[@curiousbit9228]

I always wondered how Heisenberg arrived at his uncertainty principle. Today I see how. Thank you very much!!

[@farhanmadilfaraz]

Thumbs up for such a compact explanation.

[@donghaihoang3076]

where can I download this ptt. Great work! you deserve more views and subscribers

[@andrewjones2042]

Many understand, few can explain this well!

[@poecilia1329]

I think the argument about the phase velocity is totally worng.

[@michaelsun7968]

This is an amazing explanation!!

[@aritramondal4010]

Great teaching really feel this is underrated.

[@tendi.rutsate]

Wonderful

[@jacobvandijk6525]

Hear, hear! The right pronunciation of the name of the French physicist De Broglie: 10:34. ("De Broy") By the way, for more than 2 waves delta-k (2:49) turns into a standard-deviation.

[@slimshady981]

incredible video , well done

[@nathanrose7114]

thank you!

[@MM-ei7xv]

excellent explanation thank you

[@유원종-n3m]

Excellent !

[@شيمابرهانفرج]

Thank you so much

[@Story1-9]

Hello, you can send messages to these papers or a link

[@curiousbit9228]

But isn't it (h/4pi)?? because you have mentioned it as h/2pi

[@tonyacoffey5568]

If you mean on slide 27, then the h/4pi is the MINIMUM for the uncertainy principle. This only happens for Gaussian wave packets though. You should watch the later lecture on the Heisenberg uncertainty principle to clear this up.

[@جناامطيري]

nice work 🍁🤍