Ep 178: Its, Bits, Qubits *Part 2*
ToKCast
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The Simplest Quantum System That Contains a Boolean Observable Is a Qubit
The Schrodinger picture is equivalent for all predictive purposes and more efficient for most calculations, but it is very bad at representing information flow. Apart from the trivial observables that are multiples of the unit observable one hat, a qubit can be defined as any system whose non-trivial observables are Boolean. The engineer's flip-flop is not just an observable. It is a whole physical system. Qubits are physical things. They're physical things.
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