255th RQC Seminar

• 講演者

  Dr. Graeme Pleasance
  ( University of Stellenbosch, South Africa )

• 日程

  2026年2月13日(金), 16:00 - 17:00 (4:00 p.m.-5:00 p.m.)

• 開催場所

  ハイブリッド（Zoom,
  345-347 Seminar Room, 3F, Main Research Building, Wako Campus / 和光地区 研究本館3階 セミナー室 (345-347) (C01))

• 講演タイトル

  Efficient Pseudomode Mapping for Strongly Coupled Open Quantum Systems

• お問合せ

  norilab_rqc_assist[at]ml.riken.jp

講演概要
The pseudomode (PM) method has emerged as powerful tool for treating both the dynamics and thermodynamics of strongly-coupled open quantum systems. Despite its versatility, current challenges with the method - particularly with regard to parameter optimisation and optimal choice of ansatz (coupled PMs, non-Hermitian couplings, e.t.c) - persist. In this talk, I will introduce a new, generalizable approach for extracting the parameters of a coupled PM network that is both efficient and scales to an arbitrary number of PMs. This enables the low cost simulation of potentially highly complex, non-Markovian environments, while avoiding issues where the choice of ansatz can introduce numerical instabilities into the dynamics. I will finally demonstrate the effectiveness of the approach on the spin-boson model.