Protocol learns k-local Lindbladians to ε accuracy with Õ(n^{2k}/ε²) samples and projects to valid generators; improves to log n under sparsity assumptions.
Chuang and Michael A
8 Pith papers cite this work, alongside 848 external citations. Polarity classification is still indexing.
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The authors make logarithm-search Lindbladian fitting practical for two-qubit gates and add a SPAM-robust gate-set-flip-flop protocol, demonstrated on simulated and real hardware data.
An iterative algorithm builds Kraus operators for completely positive maps on separable Hilbert spaces, with strong-operator convergence of the sum.
A qudit-native Jacobi algorithm diagonalizes unknown unitaries through sequential single-parameter variational rotations and interferometric eigenvalue extraction.
Adversarially encoded measurement deviations as small as 0.23% can produce false certification of high-dimensional entanglement in provably separable systems, demonstrated experimentally with classical photonic states up to 61 dimensions.
Using about 1% of Pauli error rates from Cycle Error Reconstruction plus a heuristic completion, maximum-likelihood decoding of concatenated Steane codes achieves roughly 5 to 10 times lower logical error rates than fidelity-only decoding in simulations.
CAB benchmarks a 44-qubit parallel CZ gate at 63.09% and a 52-qubit version at 38.92%, and global-fidelity optimization improves a 6-qubit parallel CZ gate from about 88.7% to 92.04%.
A wide-ranging survey of how solid-state quantum emitters coupled to nanophotonics are being pushed toward many-body entangled states, and of the coherence and inhomogeneity barriers that stand in the way.
citing papers explorer
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Robust Structure Learning of $k$-local Lindbladians
Protocol learns k-local Lindbladians to ε accuracy with Õ(n^{2k}/ε²) samples and projects to valid generators; improves to log n under sparsity assumptions.
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Many-Body Entanglement in Solid-State Emitters
A wide-ranging survey of how solid-state quantum emitters coupled to nanophotonics are being pushed toward many-body entangled states, and of the coherence and inhomogeneity barriers that stand in the way.