@physicsisfun0: What’s the difference between Quantum and Classical mechanics? It is going to be a list and intersections between both. Moreover an atom can be in some cases be described by classical (Newton’s laws) or quantum mechanics (Schrödinger equation, Density matrix formalism). About these things we will talk in further videos. For now let’s start with the notion of trajectory. The main difference is that in classical mechanics you can have certain initial coordinates and velocities. In quantum mechanics you don’t possess such luxury. So you have to choose which set of physical quantities you will use as complete. Due to this fact, due to the uncertainty principle, you can not define a trajectory for a particle when it obeys the laws of quantum mechanics. I find it important to mention here that the transition from quantum to classical and back can be defined by various parameters. I personally like to start with the ones we use in theoretical physics: classical S action and quantum action \hbar. We will explore more tools of quantum mechanics in further lectures. #quantum #quantumphysic #quantummechanics #physics #mechanics #science #math #mathematic #uncertaintyprinciple #principles #academia #academy #study #lecture #university #researcher #professor #lectura #lecturer #teacher #lioneaporozov #quiverquant

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Friday 23 August 2024 07:54:58 GMT