How does Purcell's work connect to quantum computing?
That's a fascinating connection. Nuclear magnetic resonance, which I discovered, is now being used as a platform for quantum computing. The idea is that the spin states of atomic nuclei—say, spin up and spin down—can serve as qubits, the basic units of quantum information. In the 1990s, researchers realized that the same radio-frequency pulses we used in NMR experiments could be used to manipulate these qubits, performing quantum logic operations. The beauty of this is that NMR provides a well-controlled environment where you can isolate and manipulate individual quantum states. Of course, there are challenges—NMR quantum computers are difficult to scale because the signals from many nuclei get mixed together. But the principles are directly rooted in my work. I think it's a wonderful example of how basic physics, done with a piece of chalk and a blackboard, can open doors to technologies we never imagined.
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