Explore groundbreaking research on quantum communication and approximate rank in this 19-minute IEEE conference talk. Delve into the exponential separation between quantum communication and the logarithm of approximate rank as presented by Makrand Sinha and Ronald de Wolf. Learn about randomized and quantum communication, the SINK function, and its approximate rank. Examine the theorem on quantum communication and understand the implications of conditioning on collision events. Consider the implications for the Log-rank Conjecture and gain insights into cutting-edge developments in quantum information theory.