activity
20062023
most citedThe Gravity Dual of a Density Matrix

433 citations · 2.7k across the 44 of their papers we have counts for

collaborators

45 papers

hep-th2023

Changing states in holography: From modular Berry curvature to the bulk symplectic form

Bartlomiej Czech, Jan de Boer, Ricardo Espíndola +3

We present a new perspective on bulk reconstruction using Berry phases in the boundary CFT. Our parallel transport of modular Hamiltonians is associated to a trajectory in the spac…

hep-th2022★ 2 cited

Boundary and bulk notions of transport in the AdS/CFT correspondence

Bowen Chen, Bartlomiej Czech, Jan de Boer +2

We construct operators in holographic two-dimensional conformal field theory, which act locally in the code subspace as arbitrary bulk spacelike vector fields. Key to the construct…

hep-th2022★ 7 cited

Modular parallel transport of multiple intervals in 1+1-dimensional free fermion theory

Bowen Chen, Bartlomiej Czech, Ling-Yan Hung +1

Modular parallel transport is a generalization of Berry phases, applied to modular (entanglement) Hamiltonians. Here we initiate the study of modular parallel transport for disjoin…

hep-th2022★ 26 cited

A holographic inequality for regions

Bartlomiej Czech, Yunfei Wang

In holographic duality, boundary states that have semiclassical bulk duals must obey inequalities, which bound their subsystems' von Neumann entropies. Hitherto known inequalities…

hep-th2022★ 7 cited

The Gauge Theory of Measurement-Based Quantum Computation

Gabriel Wong, Robert Raussendorf, Bartlomiej Czech

Measurement-Based Quantum Computation (MBQC) is a model of quantum computation, which uses local measurements instead of unitary gates. Here we explain that the MBQC procedure has…

hep-th2022

Holographic State Complexity from Group Cohomology

Bartlomiej Czech

Topological phases of matter are often described using auxiliary systems in one extra dimension. I review the one-dimensional cluster state--the simplest quantum state with Symmetr…