A classical battery converts chemical energy into a persistent voltage bias that can power
electronic circuits. Similarly, a phase battery is a quantum device that provides a persistent …

Scanning tunnelling microscopy and break-junction experiments realize metallic and
molecular nanocontacts that act as ideal one-dimensional channels between macroscopic …

We study quantum-impurity models as a platform for quantum thermometry. A single
quantum spin-1 2 impurity is coupled to an explicit, structured, fermionic thermal sample …

A general framework for non-abelian symmetries is presented for matrix-product and tensor-
network states in the presence of well-defined orthonormal local as well as effective basis …

This article summarizes our understanding of the Kondo effect in graphene, primarily from a
theoretical perspective. We shall describe different ways to create magnetic moments in …

Based on ab initio calculations we identify possible scenarios for the Kondo effect due to Co
adatoms on graphene. General symmetry arguments show that for magnetic atoms in high …

Single-molecule spintronics investigates electron transport through magnetic molecules that
have an internal spin degree of freedom. To understand and control these individual …

We present the first quantitative experimental evidence for the underscreened Kondo effect,
an incomplete compensation of a quantized magnetic moment by conduction electrons, as …

The emergence of flat bands in twisted bilayer graphene at the magic angle can be
understood in terms of a vanishing Fermi velocity of the Dirac cone. This is associated with …

Quantum impurity models with frustrated Kondo interactions can support quantum critical
points with fractionalized excitations. Recent experiments [W. Pouse, Nat. Phys.(2023) …