177 citations · 245 across the 4 of their papers we have counts for
7 papers
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 dynamics of few-photon pulsed waveguide-QED with a single artificial atom: frequency-dependent scattering theory and time-dependent matrix product states
Sofia Arranz Regidor, Matthew Kozma, Stephen Hughes
We present a quantum dynamical study of pulsed few-photon scattering from a single artificial atom, consisting of a two-level system (TLS) or qubit, in a waveguide QED system, dire…
A Strictly Single-Site DMRG Algorithm with Subspace Expansion
Claudius Hubig, Ian P. McCulloch, Ulrich Schollwöck +1
We introduce a strictly single-site DMRG algorithm based on the subspace expansion of the Alternating Minimal Energy (AMEn) method. The proposed new MPS basis enrichment method is…
Accessing quantum nanoplasmonics in a hybrid quantum-dot metal nanosystem: Mollow triplet of a quantum dot near a metal nanoparticle
Rong-Chun Ge, C. Van Vlack, P. Yao +2
We present a theoretical study of the resonance fluorescence spectra of an optically driven quantum dot placed near a single metal nanoparticle. The metallic reservoir coupling is…
Phonon-Assisted Incoherent Excitation of a Quantum Dot and its Emission Properties
S. Weiler, A. Ulhaq, C. Roy +5
We present a detailed study of a phonon-assisted incoherent excitation mechanism of single quantum dots. A spectrally-detuned laser couples to a quantum dot transition by mediation…
Finite-difference time-domain technique as an efficient tool for obtaining the regularized Green function: applications to the local field problem in quantum optics for inhomogeneous lossy materials
C. Van Vlack, S. Hughes
The calculation of the local density of states (LDOS) in lossy materials has long been disputed due to the divergence of the homogeneous Green function with equal space arguments.…