A new third-order separability witness constructs a 4x4 matrix from local randomized measurement invariants whose negative minimum eigenvalue certifies entanglement with dimension-independent sample complexity.
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Generated 95-qubit 1D and 72-qubit 2D genuine entangled cluster states on superconducting hardware with fidelities above 0.55 and verified their symmetry-protected topological phases via input-state-dependent teleportation robustness.
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Third-Order Local Randomized Measurements for Finite-size Entanglement Certification
A new third-order separability witness constructs a 4x4 matrix from local randomized measurement invariants whose negative minimum eigenvalue certifies entanglement with dimension-independent sample complexity.
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Generation of 95-qubit genuine entanglement and verification of symmetry-protected topological phases
Generated 95-qubit 1D and 72-qubit 2D genuine entangled cluster states on superconducting hardware with fidelities above 0.55 and verified their symmetry-protected topological phases via input-state-dependent teleportation robustness.