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quant-ph2026
Exact dynamics of first-order system-bath coherence in bilinear bosonic models
Yang-Yang Xie, Song-Lin Wu, Paul Brumer +2
We investigate the exact dynamics of first-order system--bath coherence induced by excitation exchange in bilinear bosonic models. By solving the linear Heisenberg equations, we ob…
quant-ph2026
Symmetry and Exact Solutions of General Spin-Boson Models
Yifan Sun, Lian-Ao Wu
Spin-boson models are the canonical benchmark for quantum dissipation. We show the symmetry structure of general spin-boson Hamiltonians and obtain their spectra explicitly by expl…
quant-ph2026
Detecting Initial System-Environment Correlations from a Single Observable
Ali Abu-Nada, Russell Ceballos, Lian-Ao Wu
We address the problem of detecting initial system--environment correlations when the environment is not directly accessible. Most existing approaches rely on full state tomography…