I'm pretty sure non-cooperative doesn't even technically mean the person doesn't want to be found. It simply means that the person is not a participant in the system. In a cooperative system, everyone the robots were looking for might be wearing a transmitter. Thus everyone without a transmitter, even if they were standing on a hilltop, waving a flag, and shouting at the top of their lungs, would be non-cooperative. Cooperative means that you get to define the actions of the subject, whatever those might be, while non-cooperative means you don't.
Okay, you're definitely looking at it the wrong way. A qubit has two states, it's just that it can be in both states, with varying weights and phases, at once. As I mentioned earlier, if you got to the website of the research group, you'll see what they're referring to is not the number of states, but the number of elements in the density matrix. It's probably the worst possible way to describe the size of a quantum system, especially when the article doesn't make it clear that they're talking about the density matrix.
As always, when in doubt go to the source. There you'll find that the number 65,536 refers to the density matrix. In quantum computing, the density matrix contains the phase information of the states, along with the probability of their occupation. As the matrix is Hermitian (it is the conjugate transpose of itself), only about half the elements of the matrix are independent, the other half being the conjugates of their opposites. It's a confusing way to describe the situation, as there really are only 256 states.
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I'm pretty sure non-cooperative doesn't even technically mean the person doesn't want to be found. It simply means that the person is not a participant in the system. In a cooperative system, everyone the robots were looking for might be wearing a transmitter. Thus everyone without a transmitter, even if they were standing on a hilltop, waving a flag, and shouting at the top of their lungs, would be non-cooperative. Cooperative means that you get to define the actions of the subject, whatever those might be, while non-cooperative means you don't.
Okay, you're definitely looking at it the wrong way. A qubit has two states, it's just that it can be in both states, with varying weights and phases, at once. As I mentioned earlier, if you got to the website of the research group, you'll see what they're referring to is not the number of states, but the number of elements in the density matrix. It's probably the worst possible way to describe the size of a quantum system, especially when the article doesn't make it clear that they're talking about the density matrix.
As always, when in doubt go to the source. There you'll find that the number 65,536 refers to the density matrix. In quantum computing, the density matrix contains the phase information of the states, along with the probability of their occupation. As the matrix is Hermitian (it is the conjugate transpose of itself), only about half the elements of the matrix are independent, the other half being the conjugates of their opposites. It's a confusing way to describe the situation, as there really are only 256 states.