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quant-ph2026
Variational preparation of thermofield double states for SYK models via multi-angle QAOA: sequential angle pruning for circuit reduction
Haji Muhammad Husnain Ashfaq, Moongul Byun, Keun-Young Kim
Variational preparation of thermofield double (TFD) states can require deep quantum circuits, particularly for interacting many-body systems. Reducing these circuits while retainin…
hep-th2026
Hayden--Preskill recovery at finite temperature on a quantum processor: dynamics and initial state from the SYK model
Jeongho Bang, Moongul Byun, Kyoungho Cho +2
In the original Hayden--Preskill recovery, the post-injection scrambler and initial state are {\it not related}. We extend this setup in two ways: by using a SWAP gate so that the…
hep-th2026
Quantum simulation of traversable-wormhole-inspired quantum teleportation in a chaotic binary sparse SYK model
Moongul Byun, Keun-Young Kim, Hyeonsoo Lee
We report the experimental signature of holographically motivated quantum teleportation on a quantum processor, driven by the highly entangled, chaotic dynamics of a many-body syst…