Random sampling shows Markovian two-step qubit dynamics form only a small fraction of the total space under multiple non-Markovianity witnesses.
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IBM quantum hardware verifies quantum memory in non-Markovian single-qubit dynamics via collision-model circuits, with a toy example for two-qubit cases.
Local quantum memory criteria applied via matrix product operator methods show that single-intervention process tensors generally predict quantum memory at low temperatures in spin-boson models, while dynamical maps detect it for resonant environments at short times.
citing papers explorer
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How rare are Markovian quantum dynamics?
Random sampling shows Markovian two-step qubit dynamics form only a small fraction of the total space under multiple non-Markovianity witnesses.
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Revealing the quantum nature of memory in non-Markovian dynamics on IBM Quantum
IBM quantum hardware verifies quantum memory in non-Markovian single-qubit dynamics via collision-model circuits, with a toy example for two-qubit cases.
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Verifying Quantum Memory in the Dynamics of Spin Boson Models
Local quantum memory criteria applied via matrix product operator methods show that single-intervention process tensors generally predict quantum memory at low temperatures in spin-boson models, while dynamical maps detect it for resonant environments at short times.