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Paper detail

Quantum chaos in small quantum networks

We study a 2-spin quantum Turing architecture, in which discrete local rotations α_m of the Turing head spin alternate with quantum controlled NOT-operations. We show that a single chaotic parameter input α_m leads to a chaotic dynamics in the entire Hilbert space. The instability of periodic orbits on the Turing head and `chaos swapping' onto the Turing tape are demonstrated explicitly as well as exponential parameter sensitivity of the Bures metric.

preprint1999arXivOpen access
Ilki KimGuenter Mahler
quant-ph
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Ilki KimGuenter Mahler

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