<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 quantum superposition in quantum mechanics? Context: Quantum superposition in quantum mechanics refers to the ability of a quantum system to be in multiple states at the same time until measured. Answer: [/INST]Quantum superposition is a fundamental principle of quantum mechanics where a quantum system can exist in multiple states simultaneously until it is measured.</s>