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Nonperturbative Open Quantum Dynamics Bypass Influence Functional

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arxiv 2503.00297 v2 pith:T3RGF66K submitted 2025-03-01 quant-ph physics.chem-ph

Nonperturbative Open Quantum Dynamics Bypass Influence Functional

classification quant-ph physics.chem-ph
keywords functionalinfluenceapproachdynamicsformalismopenquantumannihilation
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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An ordered moment approach to exact open quantum dynamics is presented, which bypasses the Feynman-Vernon influence functional formalism. The hierarchical equations of motion are constructed using Wick's contraction, which follows specific orderings of the bath's creation and annihilation operators. Our approach moves beyond the traditional influence functional formalism, offering a more intuitive and direct framework, and extends the applicability of theory to nonlinear system--bath coupling scenarios.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Markovian Embeddings of Non-Markovian Open System Dynamics

    quant-ph 2026-02 conditional novelty 5.0

    Different Markovian embedding schemes for non-Markovian open quantum systems are shown to be different unravelings of the same Gaussian bath self-energy, related by Bogoliubov transformations.