= Yvan Castin
{c}
<Yvan Castin>, with <Jean Dalibard> and <Klaus Mølmer>, formulated a stochastic wave-function approach to dissipative quantum systems. Their construction samples conditional jumps and no-jump evolution so that the ensemble reproduces a density-operator master equation.<A Wave Function approach to dissipative processes by Yvan Castin and others>[Sections 1–2, equations (4)–(16)]{ref}
Using state vectors can reduce the cost of numerical simulations compared with directly storing a full <density matrix>, although many trajectories may be needed for precise averages. The 2008 posting reproduces a 1992 manuscript and explicitly acknowledges earlier related quantum-filtering work.
Back to article page
