Efficient Pseudomode Representation and Complexity of Quantum Impurity
Models
Efficient Pseudomode Representation and Complexity of Quantum Impurity
Models
Out-of-equilibrium fermionic quantum impurity models (QIM), describing a small interacting system coupled to a continuous fermionic bath, play an important role in condensed matter physics. Solving such models is a computationally demanding task, and a variety of computational approaches are based on finding approximate representations of the bath by a …