28 citations · 69 across the 9 of their papers we have counts for
7 papers · 1 filter
Volume as an index of a subalgebra
Samuel Leutheusser, Hong Liu
We propose a new way to understand the volume of certain subregions in the bulk of AdS spacetime by relating it to an algebraic quantity known as the index of inclusion. This index…
Superadditivity in large field theories and performance of quantum tasks
Samuel Leutheusser, Hong Liu
Field theories exhibit dramatic changes in the structure of their operator algebras in the limit where the number of local degrees of freedom () becomes infinite. An important e…
Effective field theories of dissipative fluids with one-form symmetries
Shreya Vardhan, Sašo Grozdanov, Samuel Leutheusser +1
A system with a one-form global symmetry at finite temperature can be viewed as a dissipative fluid of string-like objects. In this work, we classify and construct the most general…
Subregion-subalgebra duality: emergence of space and time in holography
Samuel Leutheusser, Hong Liu
In holographic duality, a higher dimensional quantum gravity system emerges from a lower dimensional conformal field theory (CFT) with a large number of degrees of freedom. We prop…
Emergent times in holographic duality
Samuel Leutheusser, Hong Liu
In holographic duality an eternal AdS black hole is described by two copies of the boundary CFT in the thermal field double state. In this paper we provide explicit constructions i…
Causal connectability between quantum systems and the black hole interior in holographic duality
Samuel Leutheusser, Hong Liu
In holographic duality an eternal AdS black hole is described by two copies of the boundary CFT in the thermal field double state. This identification has many puzzles, including t…
Complexity in One- and Two-Qubit Systems
Reginald J. Caginalp, Samuel Leutheusser
We numerically analyze the complexity of unitary time-evolution and precursor operators in one- and two-qubit systems using the framework of Nielsen complexity geometry. We find th…