6 papers
Seeing Page Curves and Islands with Blinders On
Hao Geng, Andreas Karch, Carlos Perez-Pardavila +3
This paper summarizes recent discussions of the Page curve and the information paradox, and responds to the reasoning and examples from arXiv:2506.04311. We review arguments demons…
Wet Hair: Global Symmetries in Entanglement Islands
Hao Geng, Jesús Huertas, Andreas Karch +2
A central conjecture in quantum gravity is the non-existence of global symmetries. As a fully unitary theory, there is no information loss in a UV complete quantum gravity theory.…
The Fate of Information Localizability and Holography in Quantum Gravity
Hao Geng, Daniel Jafferis, Pushkal Shrivastava +1
The AdS/CFT correspondence states an equivalence between a quantum gravitational theory in a (d+1)-dimensional anti-de Sitter spacetime (AdS) and a d-dimensional conformal…
Generalized Yang-Mills theory: Interpolating between SDYM and YM
Tolga Domurcukgül, Hao Geng, Mendel Nguyen +1
We construct a generalized Yang-Mills (YM) theory with two real couplings, interpolating continuously between the Self-Dual Yang-Mills (SDYM) limit (also called Chalmers-Siegel the…
Quantum Rods and Clock in a Gravitational Universe
Hao Geng
Local operators are the basic observables in quantum field theory which encode the physics observed by a local experimentalist. However, when gravity is dynamical, diffeomorphism s…
Ion behavior and interelectrode breakdown voltage of a drift tube
Hao Geng, Zhongjun Zhao, Yixiang Duan
We experimentally studied ion behavior and interelectrode breakdown voltage. The ion behavior of a drift tube directly influences the detection of ion intensity, and then influence…