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25 papers · 1 filter
Decoherence in Waveguide Quantum Electrodynamics using Matrix Product States
Matias Bundgaard-Nielsen, Matthew Kozma, Sofia Arranz Regidor +1
We present a matrix product state (MPS) method for including decoherence processes in calculations involving waveguide quantum electrodynamics (waveguide QED) using density matrice…
Quantum-dot single photon source performance with off-resonant pulse preparation schemes
Gavin Crowder, Lora Ramunno, Stephen Hughes
The preparation of photonic qubits in the excited state is an integral part of the performance of an on-demand single photon source (SPS). Conventional resonant excitation, an exce…
Direct space-time modeling of mechanically dressed dipole-dipole interactions with electromagnetically-coupled oscillating dipoles
Yi-Ming Chang, Kamran Akbari, Matthew Filipovich +1
We study the radiative dynamics of coupled electric dipoles, modelled as Lorentz oscillators (LOs), in the presence of real-time mechanical oscillations. The dipoles are treated in…
Gain-modified emission dynamics between two quantum emitters in a plasmonic gain cavity system
Becca VanDrunen, Juanjuan Ren, Sebastian Franke +1
We present a general theory of gain-modified emission dynamics between two quantum emitters (two level systems) in a linear gain medium, demonstrating how gain modifies the usual r…
Floquet engineering the quantum Rabi model in the ultrastrong coupling regime
Kamran Akbari, Franco Nori, Stephen Hughes
We study the quantum Rabi model for a two-level system coupled to a quantized cavity mode under periodic modulation of the cavity-dipole coupling in the ultrastrong coupling regime…
Information flow-enhanced precision in collisional quantum thermometry
Taysa M. Mendonça, Diogo O. Soares-Pinto, Mauro Paternostro
We describe and analyze a quantum thermometer based on a multilayered collisional model. We propose a qubit system whose architecture provides significant sensitivity even for shor…