2 papers
gr-qc2025
Entanglement between pair-created twin universes with opposite time arrows should leave a birthmark on CMB spectrum
Pisin Chen, Kuan-Nan Lin, Wei-Chen Lin +1
Why (and how) the Universe was born is one of the ultimate questions in physics. Another big puzzle is about the arrow of time: why is there only one direction of time? Are these t…
gr-qc2025
Quantum black holes: inside and outside
Wei-Chen Lin, Dong-han Yeom, Dejan Stojkovic
For a unitary description of an evaporating black hole, one usually chooses the time slices that cover only outside of the event horizon, which is mostly problem-free because the e…