报告人： Juan Maldacena (IAS)
摘要： The sphere partition function is one of the simplest euclidean gravity computations. It is usually interpreted as count of states. However, the one loop gravity correction contains a dimension dependent phase factor, iD+2, which seems confusing for such an interpretation. We show that, after including an observer, this phase gets cancelled for the quantity that should correspond to a count of states.
时间： Friday 21st February 10 a.m.
地点： room 1610
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