I just watched a video by Alyssa Nobriga, a popular online coach consultant with a big following and (she says) a seven-figure business. Surprisingly, she covered quite a bit of quantum-mechanical ground in advocating self-care, centred manifestation (start from within yourself - it's how you feel about YOU that makes those ripples across the Universe), and concentrating on love instead of fear.
Logically, quantum mechanics has to have a place in our personal development systems as it's the bedrock of reality that potentially crosses all dimensions. While classical physics applies here in 3D, when you get to 5D and beyond there is no reason it should still hold. Entanglement, superposition, duality and the other quantum principles, however, look likely to be omnipotent across the whole spectrum of interdimensional landscapes.
See what you can find, here and elsewhere, on quantum mechanics and consciousness, the principles and concepts, and the intricate physiology of quantum systems in the brain. It's all fascinating stuff, you can't unlearn what you learn, and it's immensely valuable to our personal journeys.
Have fun, stay safe, take care of each other.
Much love,
Kathy x