4 v 1 1 A pr 1 99 9 OBSERVATIONAL CONSEQUENCES OF MANY - WORLDS QUANTUM THEORY ∗
نویسنده
چکیده
Contrary to an oft-made claim, there are observational distinctions between " many-worlds " quantum theories, in which the quantum state " branches " without collapsing, and " single-history " quantum theories, in which something like a single macroscopic history occurs through some process such as the continual collapse or reduction of the quantum state. The observational distinctions occur as a result of processes in which observers are created or destroyed. One example is whether you may expect to observe anything within this universe after a time long compared with your life expectancy. Other examples are whether we would be expected to observe an expanding universe today in certain theories of quantum cosmology, or what value we might expect to observe for the cosmological constant.
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تاریخ انتشار 1999