A continuous process tensor is defined by embedding the discrete multi-partite Choi matrix of a quantum comb into bosonic Fock space, closing the gap between discrete and continuum descriptions of multi-time quantum processes.
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2026 2verdicts
UNVERDICTED 2representative citing papers
In an N-qubit network with one conserved excitation, a single transition amplitude determines positivity and complete positivity of subsystem propagators, links them to excitation flow and Fisher information, and reveals an unvisited band of states inside the positivity domain.
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An operational continuum limit of quantum combs
A continuous process tensor is defined by embedding the discrete multi-partite Choi matrix of a quantum comb into bosonic Fock space, closing the gap between discrete and continuum descriptions of multi-time quantum processes.
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Excitation Flow, Positivity, and Fisher Information for Open Subsystems of an $N$-Qubit Network
In an N-qubit network with one conserved excitation, a single transition amplitude determines positivity and complete positivity of subsystem propagators, links them to excitation flow and Fisher information, and reveals an unvisited band of states inside the positivity domain.