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quant-ph2026
Noise tolerance via reinforcement in the quantum search problem
Marjan Homayouni-Sangari, Abolfazl Ramezanpour
The Grover lower bound for the unstructured search problem can be surpassed when some information about the data structure is available. Here, we numerically observe that reinforce…
quant-ph2026
Quantized Dissipation from the Inverse-Square Anomaly in a Non-Hermitian Klein-Gordon Field
Mansour Haghighat, Ali Nouri
We construct an exactly solvable relativistic model that embeds the anomalous inverse-square interaction into a non-Hermitian Klein-Gordon field theory through a purely imaginary,…
quant-ph2026
Spin stiffness and resilience phase transition in a noisy toric-rotor code
Morteza Zarei, Mohammad Hossein Zarei
We use a quantum formalism for the partition function of the classical model to identify a resilience phase transition in the zero-syndrome postselected sector of a noisy tori…