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quant-ph2026
Tensor-Network Algorithm for Many-Body Trace Norms
Seunghun Lee, Eun-Gook Moon
Trace norms are fundamental to quantum information theory, yet in many-body systems their evaluation remains a major computational bottleneck, as it generally requires diagonalizin…
quant-ph2026
Robust Mixed-State Cluster States and Spurious Topological Entanglement Negativity
Seunghun Lee, Eun-Gook Moon
We investigate 1D and 2D cluster states under local decoherence to assess the robustness of their mixed-state subsystem symmetry-protected topological (SSPT) order. By exactly comp…
quant-ph2026★ 3 cited
Mixed-State Topological Order under Coherent Noise
Seunghun Lee, Eun-Gook Moon
Mixed-state phases of matter under local decoherence have recently garnered significant attention due to the ubiquitous presence of noise in current quantum processors. One of the…