Quote:
Originally Posted by Sparrow
Wouldn't that contravene conservation laws - once the particle outside the event hoizon has been observed, collapsing it's probability into something definite (e.g. left spin); there would be nothing to neutralise it - there'd be a net energy gain?
Not that I know much about it - so I may be talking rubbish.
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Entanglement is not about conservation of anything- it states, in short (and not absolutely correctly phrased), that, if you measure a quantum state of one of two entangled particles, the other particle will correspondingly collapse it's waveform. In laymans terms, if you measure something about the one particle, you can state, without measuring, what property the other particle is going to have.
Also, it's important to note that the act of measuring a quantum system doesn't change it's energy.