HEP Theory2026-07-172 minarXiv:2607.16134expressA Black String in Imaginary TimeQuantum gravity is a lot like bookkeeping: every possible trajectory is an entry in the ledger, and to tally the accounts you have to sum them all up.Silvia Georgescu·Sameer Murthy·Andrew SveskoAdam RiessAlan GuthAlbert Einsteinstring theoryblack hole👍👎☆SimplePopularAdvanced