From the 1 of 8 linked papers with an AI index.
8 papers
Approximate locality, black hole complementarity and overlapping qubits
ChunJun Cao, Gong Cheng, Alexander Jahn +1
We construct a toy model of an evaporating black hole using approximately local degrees of freedom acting on ``overlapping" qubits in which a version of black hole complementarity…
Observation of gravity-like signatures in holographic codes on a quantum computer
Debopriyo Biswas, Gong Cheng, Krishnanand Karthikeyan +12
The authors implement a holographic quantum error‑correcting code (the HaPPY code) on a trapped‑ion quantum computer and experimentally verify holographic entropy relations, includ…
State-dependent geometries from magic-enriched quantum codes
ChunJun Cao, Gong Cheng, Krishnanand Karthikeyan +2
Quantum error-correcting codes provide a powerful framework for emergent spacetime, yet existing holographic code models describe only quantum fields on a fixed background: in subs…
Demystifying Objectivity with Operator Algebra Quantum Error Correction
Marin Girard, Gong Cheng, ChunJun Cao
Quantum Darwinism extends the decoherence formalism to explain how objectivity emerges from quantum mechanics. However, existing approaches often capture only partial aspects of ob…
Wave packets from the spectrum
ChunJun Cao, Oliver Friedrich, Marin Girard +2
The freedom to change Fock basis seems to ensure a minimum amount of locality in lattice theories in the following sense: If for $i…
Gravitational back-reaction is magical
ChunJun Cao, Gong Cheng, Alioscia Hamma +3
We study the interplay between magic and entanglement in quantum many-body systems. We show that non-local magic, which is supported by the quantum correlations is lower bounded by…