ArticleNature communications2019
Modelling the ultra-strongly coupled spin-boson model with unphysical modes.
Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Dissipation in the broadband and ultrastrong coupling regimes of cavity quantum electrodynamics: an ab initio quantized quasinormal mode approach.Light, science & applications · 2026Article
- Molecular Origin of Correlated Bath Effects in Photoinduced Charge Transfer Dynamics in Polar Solvents.The journal of physical chemistry letters · 2026Article
- Trajectory-based computational analysis of the quantum-classical transition in asymmetrically coupled spin-boson models.Computational and structural biotechnology journal · 2026Article
- Consistent and Generalizable Effective Model Hamiltonian Framework for Studying Nonadiabatic Dynamics in the Condensed Phase.Journal of chemical theory and computation · 2025Review
- Investigation of quantum trajectories in photosynthetic light harvesting through a quantum stochastic approach.Scientific reports · 2025Article
- Non-Markovian quantum exceptional points.Nature communications · 2025Article
- Energy transfer in N-component nanosystems enhanced by pulse-driven vibronic many-body entanglement.Scientific reports · 2023Article
- Excitation Dynamics in Chain-Mapped Environments.Entropy (Basel, Switzerland) · 2020Article
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Authors and funding
4 authors.
Funding
Abstract
A quantum system weakly coupled to a zero-temperature environment will relax, via spontaneous emission, to its ground-state. However, when the coupling to the environment is ultra-strong the ground-state is expected to become dressed with virtual excitations. This regime is difficult to capture with some traditional methods because of the explosion in the number of Matsubara frequencies, i.e., exponential terms in the free-bath correlation function. To access this regime we generalize both the hierarchical equations of motion and pseudomode methods, taking into account this explosion using only a biexponential fitting function. We compare these methods to the reaction coordinate mapping, which helps show how these sometimes neglected Matsubara terms are important to regulate detailed balance and prevent the unphysical emission of virtual excitations. For the pseudomode method, we present a general proof of validity for the use of superficially unphysical Matsubara-modes, which mirror the mathematical essence of the Matsubara frequencies.
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