5 papers
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…
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…
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 observation of holographically motivated quantum teleportation on a quantum processor, driven by the highly entangled, chaotic dynamics of a many-body sy…
Topology in Holographic Mean-Field Theory at Zero and Finite Temperature
Moongul Byun, Taewon Yuk, Young-Kwon Han +2
We investigate topological invariants in strongly interacting many-body systems within holographic mean-field theory (H-MFT) framework. Analytic expressions for retarded Green's fu…
Symmetric Tensor Coupling in Holographic Mean-Field Theory: Deformed Dirac Cones
Moongul Byun, Taewon Yuk, Sang-Jin Sin
We extend the holographic mean-field theory to rank-two symmetric tensor field as an external source coupled with fermion. We classify the roles of symmetric tensor coupling accord…