14 citations · 14 across the 4 of their papers we have counts for
4 papers
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…
A possible origin of the -vacuum as the initial state of the Universe
Pisin Chen, Kuan-Nan Lin, Wei-Chen Lin +1
We investigate the cosmological observables using the Euclidean path integral approach. Specifically, we study both the no-boundary compact instantons scenario and the Euclidean wo…
Yang-Mills instantons as the end point of black hole evaporation
Pisin Chen, Xiao Yan Chew, Misao Sasaki +1
Non-perturbative contributions of the Euclidean path integral are important to understand the information loss paradox. In this paper, we revisit the Yang-Mills instantons in the E…
Regular Instantons in the Eddington-inspired-Born-Infeld Gravity: Lorentzian Wormholes from Bubble Nucleations
Mariam Bouhmadi-López, Che-Yu Chen, Pisin Chen +1
The O(4)-symmetric regular instanton solutions are studied within the framework of the Eddington-inspired-Born-Infeld gravity (EiBI). We find that the behavior of the solution woul…