Equations of motion for Green's functions

[@vladkovalchuk8299]

When continued fraction popped out of the recurrence, that made my day. Thank you for this great lecture series!

[@lujqian]

dear Dr. Mitchell, thank you for bringing us these fabulous lectures on Quantum condensed matter physics and I always want to express my gratitude to your efforts to make these high-quality lectures happening. I only have a small enquiry at 5:07, when you were applying the Heisenberg Equation of Motion to plug the partial derivative of time dependent annihilation operator with its correspondent commutation notation, it seems that the h bar (the reduced plank constant) is missing. Please correct me if I have missed this part of knowledge.

[@drmitchellsphysicschannel2955]

Thanks for the question. The h-bar is hiding there in the equation of motion, yes, but I've set it to 1 as is customary in QM! This is in the end just a units choice and nothing profound.

[@lujqian]

@@drmitchellsphysicschannel2955 Thanks.

[@abhinavsaket1194]

Wonderful lecture. This lecture has helped me a lot.

[@earldcosta9785]

Great video