19 citations · 22 across the 14 of their papers we have counts for
11 papers · 1 filter
Ramp, Plateau, and Wormholes without Averaging, and Hyper-non-perturbative Structures in Gravity
Hong Liu
Universal hallmarks of quantum chaos---such as the ramp and plateau in the spectral form factor---and the ramp's gravitational duals involving wormholes are widely interpreted as c…
"Filtering" CFTs at large N: Euclidean Wormholes, Closed Universes, and Black Hole Interiors
Hong Liu
Despite its successes, the large- holographic dictionary remains incomplete. Key features of gravitational path integrals--most notably Euclidean wormholes and the associated fa…
Probing Stringy Horizons with Pole-Skipping in Non-Maximal Chaotic Systems
Ping Gao, Hong Liu
In this paper, we study pole-skipping in non-maximally quantum chaotic systems. Using Rindler conformal field theories and the large- SYK chain as illustrative examples, we argu…
Lectures on entanglement, von Neumann algebras, and emergence of spacetime
Hong Liu
We review recent developments in the use of von Neumann algebras to analyze the entanglement structure of quantum gravity and the emergence of spacetime in the semi-classical limit…
Towards a holographic description of closed universes
Hong Liu
We study baby closed universes in AdS, focusing on the Antonini-Sasieta-Swingle (AS) cosmology, which arises in the gravitational description of partially entangled thermal sta…
The Making of von Neumann Algebras from Bulk Focusing
Netta Engelhardt, Hong Liu
The single-trace, infinite-N algebra of an arbitrary region may or may not be a von Neumann algebra depending on the GNS sector. In this paper we identify the holographic dual of t…
Chaos and the Emergence of the Cosmological Horizon
David K. Kolchmeyer, Hong Liu
We construct algebras of diff-invariant observables in a global de Sitter universe with two observers and a free scalar QFT in two dimensions. We work in the strict $G_N \rightarro…
Toward stringy horizons
Elliott Gesteau, Hong Liu
We take a first step towards developing a new language to describe causal structure, event horizons, and quantum extremal surfaces (QES) for the bulk description of holographic sys…
New horizon symmetries, hydrodynamics, and quantum chaos
Maria Knysh, Hong Liu, Natalia Pinzani-Fokeeva
We generalize the formulation of horizon symmetries presented in previous literature to include diffeomorphisms that can shift the location of the horizon. In the context of the Ad…
Algebraic ER=EPR and Complexity Transfer
Netta Engelhardt, Hong Liu
We propose an algebraic definition of ER=EPR in the limit, which associates bulk spacetime connectivity/disconnectivity to the operator algebraic structure of a quantum…
Landau Instability and soliton formation
Shanquan Lan, Hong Liu, Yu Tian +1
Consider at a finite temperature a superfluid moving with a velocity relative to the thermal bath or its normal component. From Landau's argument there exists a critical $v…