Publications by authors named "Orazio Scarlatella"
Article Synopsis
- Topological photonics allows for light control that is resilient against manufacturing flaws, but past experiments have mostly worked at the vacuum wavelength level.* -
- This study demonstrates deep subwavelength topological edge states in a van der Waals heterostructure, achieving confinement in a volume much smaller than the corresponding free-space wavelength.* -
- The findings suggest potential applications in integrating various polaritonic materials, enhancing operational frequency ranges, and aligning with electronic systems.*
We develop a method to study quantum impurity models, small interacting quantum systems bilinearly coupled to an environment, in the presence of an additional Markovian quantum bath, with a generic nonlinear coupling to the impurity. We aim at computing the evolution operator of the reduced density matrix of the impurity, obtained after tracing out all the environmental degrees of freedom. First, we derive an exact real-time hybridization expansion for this quantity, which generalizes the result obtained in the absence of the additional Markovian dissipation and which could be amenable to stochastic sampling through diagrammatic Monte Carlo.
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