| Quantum mechanics and observers for gravity in a closed universe |
| Daniel Harlow, MIT |
| Event Type: HEP Seminar |
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| Time: 2:00 PM - 3:15 PM |
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| Location: 726 Broadway, 940, CCPP Seminar |
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| Abstract: Recently there have been several arguments given for the seemingly absurd statement that the Hilbert space of quantum gravity in a closed universe is one-dimensional. How can this be consistent with the richness of our daily experience? In this talk I will review the arguments for a one-dimensional Hilbert space, and then present a possible resolution based on the idea that to do quantum mechanics in a closed system it is necessary to explicitly include a classical observer in the system. Link to the Event Video |