On 2/15/2020 9:09 AM, smitra wrote:
That's funny, since 20 lines above you invoked the_ lack_ of
isolation to explain measurements.
Brent
Measurement can be fully described by local interactions, so it's
compatible with the entire system comprising of measured system plus
observer, being completely isolated.
In a completely isolated system it can only be a mixed state FAPP unless
there is non-unitary evolution.
Brent
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