Want to understand quantum entanglement more deeply? Me too, so I made this video 😀

Hi everyone, I'm back after a long time, with a video on quantum entanglement. Many of you have asked me to discuss this topic, and I am more than happy to do so because it touches on the topics that I would say interest me the most.

There are already many videos on quantum entanglement on YouTube, but of the ones I've seen, it's either a very conceptual and qualitative discussion of the concept, or the equivalent of a lecture for undergraduate physics students. I wanted to bridge the gap, so that those of you who have a real interest in physics can understand it (I hope), but while also including some (minimal) mathematics, in order to have a deeper understanding of the phenomenon.

Most videos on entanglement discuss the concept using only Bell States, which were first discussed by Einstein, Podolsky and Rosen, in their paper on the EPR paradox. These states are special cases that allow us to more easily understand what an entangled quantum state is, but they do not constitute the general case. I wanted to discuss the general case here and what it specifically means to have an entangled state.

To do this we first needed to understand that quantum physics tells us that an isolated system will be in a superposition of all possible states, so I described this in brief detail. This is truly one of the first mind-blowing ideas we encounter when learning quantum physics, and I'd like to go into more detail about it in an upcoming video.

I also used bra and ket notation (which is the notation commonly used by quantum physicists) in order to show you exactly how quantum physicists would see all this math and how they would navigate it, but I hope this doesn't is not the case. massively distracting or too complicated. If so, leave me a comment below and I will be more than happy to answer your questions. Also, if I made a mistake, let me know below because I'd love to fix it!

Finally, thank you everyone for the 20,000 subscribers! It means a lot to me. Over the next few days and weeks, I will be working on a vlog for IGTV, which was filmed while I was vacationing in New York. Keep an eye out for this by following me on Instagram @parthvlogs.

Thanks for watching and see you soon!

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