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quant-ph2026
Noise structuring in fixed-depth Trotter simulation: stationary channels and observable-level depolarization
G. L. Stavisskii, W. V. Pogosov, L. E. Fedichkin +1
We analyze fixed-depth Trotter simulation as a method for structuring hardware noise in digital many-body dynamics. The number of layers is chosen using the largest endpoint time a…
quant-ph2026
Spectral theory of energy-selective quantum search with Ising Hamiltonian phase oracles
A. S. Plyashechnik, A. A. Zhukov, A. V. Lebedev +1
We develop an exact spectral-response theory for the Grover-type iterate \(W_T=D_ξ\exp(-\mathrm{i} T H)\), in which the evolution generated by a diagonal Ising Hamiltonian is used…