On Reduced Time Evolution for Initially Correlated Pure States
P. Aniello, A. Kossakowski, G. Marmo, F. Ventriglia, P. Vitale

TL;DR
This paper introduces a new Schrödinger equation-based method for analyzing the reduced dynamics of open quantum systems, applicable to both correlated and uncorrelated initial states.
Contribution
It presents a novel approach to study reduced time evolution in open systems considering initial correlations, expanding beyond traditional methods.
Findings
Applicable to correlated initial states
Simplifies analysis of open system dynamics
Enhances understanding of initial correlations effects
Abstract
A new method to deal with reduced dynamics of open systems by means of the Schr\"odinger equation is presented. It allows one to consider the reduced time evolution for correlated and uncorrelated initial conditions.
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