# Two level atoms and qubits

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kelly0303
Hello! I don't know much about quantum computing beside some basic notions, but I was wondering if there are techniques used there that can be used in measuring properties more accurately compared to current laser based techniques (e.g. Ramsey interferometry, infrared interferometry)? For example (this might make no sense) as far as I understand, entanglement is one of the main physical phenomena that make qubits so much better than classical bits. Could we use, say, two entangled atoms to get a better measurement than we would from measuring the 2 atoms separately? Can someone point me towards some papers about using quantum information techniques in atomic physics? Thank you!