52 citations · 120 across the 3 of their papers we have counts for
3 papers
quant-ph2017★ 17 cited
PsiQuaSP -- A library for efficient computation of symmetric open quantum systems
Michael Gegg, Marten Richter
In a recent publication we showed that permutation symmetry reduces the numerical complexity of Lindblad quantum master equations for identical multi-level systems from exponential…
quant-ph2017★ 52 cited
Superradiant to subradiant phase transition in the open system Dicke model: Dark state cascades
Michael Gegg, Alexander Carmele, Andreas Knorr +1
Collectivity in ensembles of atoms gives rise to effects like super- and subradiance. While superradiance is well studied and experimentally accessible, subradiance remains elusive…
cond-mat.mes-hall2014★ 51 cited
Numerically exact solution of the many emitter -- cavity laser problem: application to the fully quantized spaser emission
Marten Richter, Michael Gegg, T. Sverre Theuerholz +1
A numerically exact solution to the many emitter -- cavity problem as an open many body system is presented. The solution gives access to the full, nonperturbative density matrix a…