Correlations in Free Fermionic States
M. Fannes, J. Wouters
TL;DR
This paper investigates correlations in bipartite free Fermionic states, demonstrating they can be modeled using an auxiliary Fermionic system and a completely positive map, providing a new framework for understanding such quantum correlations.
Contribution
It introduces a novel modeling approach for bipartite free Fermionic states using auxiliary systems and completely positive maps, advancing the theoretical understanding of quantum correlations.
Findings
All conditioned free Fermionic states can be modeled by an auxiliary Fermionic system.
The correlations can be characterized through a suitable completely positive map.
The framework offers a new perspective on Fermionic quantum correlations.
Abstract
We study correlations in a bipartite, Fermionic, free state in terms of perturbations induced by one party on the other. In particular, we show that all so conditioned free states can be modelled by an auxiliary Fermionic system and a suitable completely positive map.
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