Excitonic resonance quenches ultrafast without optical gain in monolayer TMD, showing the Mott transition proceeds via nonthermal carriers and nonequilibrium screening instead of population inversion.
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Realistic exciton-phonon coupling is too weak for Dyakonov-Perel motional narrowing in MoS2; full-Brillouin-zone intervalley scattering shortens valley depolarization 3–4× to ~50 fs (300 K) and ~130 fs (10 K).
NESSi 2.0 reduces nonequilibrium Green's function simulation cost from O(N_t^3) to O(N_t N_c^2) via memory cutoff and adds tools for nonequilibrium steady states relevant to transport and prethermal dynamics.
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Excitonic Mott transition without population inversion
Excitonic resonance quenches ultrafast without optical gain in monolayer TMD, showing the Mott transition proceeds via nonthermal carriers and nonequilibrium screening instead of population inversion.
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Exciton valley depolarization in monolayer MoS2: non-Markovian quantum dynamics, intervalley scattering, and the breakdown of the Dyakonov-Perel mechanism
Realistic exciton-phonon coupling is too weak for Dyakonov-Perel motional narrowing in MoS2; full-Brillouin-zone intervalley scattering shortens valley depolarization 3–4× to ~50 fs (300 K) and ~130 fs (10 K).
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NESSi 2.0: The Non-Equilibrium Systems Simulation package version 2.0
NESSi 2.0 reduces nonequilibrium Green's function simulation cost from O(N_t^3) to O(N_t N_c^2) via memory cutoff and adds tools for nonequilibrium steady states relevant to transport and prethermal dynamics.