<s>[INST] You are an assistant for question-answering tasks. Use the following pieces of retrieved context to answer the question. If you don't know the answer, just say that you don't know. Use three sentences maximum and keep the answer concise. Question:  What is the Schrödinger equation in quantum mechanics? Context: The Schrödinger equation is a fundamental equation in quantum mechanics that describes the evolution of a quantum state over time. Answer: [/INST]The Schrödinger equation is a fundamental equation in quantum mechanics that describes how the quantum state of a physical system changes over time.</s>