28 citations · 68 across the 7 of their papers we have counts for
7 papers
Beyond the Quantum Regression Theorem in Variational Polaron Master Equations: from Ohmic to Super-Ohmic Environments
Matias Bundgaard-Nielsen, Jake Iles-Smith
While the quantum regression theorem (QRT) is the standard tool for computing multi-time correlation functions in open quantum systems, it relies on system-bath separability and an…
Modeling Quantum Noise in Nanolasers using Markov Chains
Matias Bundgaard-Nielsen, Gian Luca Lippi, Jesper Mørk
The random nature of spontaneous emission leads to unavoidable fluctuations in a laser's output. This is often included through random Langevin forces in laser rate equations, but…
Simple yet Accurate Stochastic Approach to the Quantum Phase Noise of Nanolasers
Matias Bundgaard-Nielsen, Marco Saldutti, Benjamin Falkenberg Gøtzsche +2
Nanolasers operating at low power levels are strongly affected by intrinsic quantum noise, influencing both intensity fluctuations and laser coherence. Starting from semiclassical…
One-dimensional photonic wire as a single-photon source: Implications of cavity QED to a phonon bath of reduced dimensionality
José Ferreira Neto, Matias Bundgaard-Nielsen, Niels Gregersen +1
While the semiconductor quantum dot placed in a solid-state material allows for deterministic emission of single photons, the photon indistinguishability is strongly influenced by…
A stochastic approach to the quantum noise of a single-emitter nanolaser
Matias Bundgaard-Nielsen, Emil Vosmar Denning, Marco Saldutti +1
It is shown that the intensity quantum noise of a single-emitter nanolaser can be accurately computed by adopting a stochastic interpretation of the standard rate equation model un…
Non-Markovian perturbation theories for phonon effects in strong-coupling cavity quantum electrodynamics
Matias Bundgaard-Nielsen, Jesper Mørk, Emil Vosmar Denning
Phonon interactions are inevitable in cavity quantum electrodynamical systems based on solid-state emitters or fluorescent molecules, where vibrations of the lattice or chemical bo…
Electron-phonon decoupling due to strong light-matter interactions
Emil V. Denning, Matias Bundgaard-Nielsen, Jesper Mork
Phonon interactions in solid-state photonics systems cause intrinsic quantum decoherence and often present the limiting factor in emerging quantum technology. Due to recent develop…