Lecture - 14 Quantum Physics

[@robbiemallett]

Probability current density is discussed. Then the evolution of a gaussian wavepacket in time. Consideration is given to d/dt and d/dt using Ehrenfest's theorem. The dispersion of the wavepacket is noted and then the Professor talks about the dispersion of various waves in media. Then a thought experiment of how light would behave if it had mass. Finally a summary of the basis of relativistic QM with some historical perspective.

[@rajveerniranjan1809]

thanks man

[@collegev]

he really zipped through the commutator algebra. obviously the students in the class follow him probably because of earlier homework assignments, but i had to sit down and figure it out with plenty of starts and stops between. totally worth it thought! fantastic physical insights. thanks prof b!

[@yasirsiddiqui5976]

Just pure intellect and bliss. Thanks professor.

[@saketpanigrahi]

Learning physics from the physics itself.

[@kumaranil83]

excellent lectures...hats off to professor

[@sandeeppatidar1106]

😊

[@RandomIndian001]

GOOD LECTURE SERIES FOR MSc L;EVEL PHYSICS THANX SIR

[@abhinavjha544]

❤

[@cricketknowall]

When he talks about the mass causing the time delay in gamma ray bursts, the mass of what is he talking about?

[@sourav7162]

That's a hypothetical case...that's if the photons had mass m instead of zero

[@seanSHRED87]

I respect this language.

[@ritunain2803]

can anyone please give me that instrumental music at the end of the lecture,or give me a hint where i canfind it , i really want this ...p!ease help me if anyone have idea

[@shyamalsingh1713]

This is a Vedic chanting, mostly it's a prayer song in Ramakrishna Mission, you search it in youtube, "Om sahana bhabatu , Om sahana bhunaktu....."

[@rakeshreddy3981]

OMG man i did'nt understand a bit..!! a bit higher level i mean...

[@BusterGendo]

MSc? I thought this was an undergraduate course :O

[@cricketknowall]

It is undergrad.