Jeff Barrett: Typical Quantum Worlds

Jeff Barrett (University of California, Irvine).

4:45 – 6:45pm, Tuesday November 7, Location 194 Mercer, NYC, Room 205.

Title: Typical Quantum Worlds
Abstract: Hugh Everett III’s pure wave mechanics, sometimes known as the many-worlds interpretation of quantum mechanics, was proposed as a solution to the quantum measurement problem. Both physicists and philosophers of physics have repeatedly claimed to be able to deduce the standard quantum probabilities from pure wave mechanics alone. We will consider why this is impossible, then consider how Everett himself understood quantum probabilities. This will involve clearly distinguishing between typical and probable quantum worlds.

There will be dinner after the talk. If you are interested, please send an email with “Dinner” in the heading to (please note that all are welcome, but only the speaker’s dinner will be covered). If you have any other questions, please email

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