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Archive of Highlights Highlights Vol. 51 No. 3 - Highlights Many-body localisation in generalized Kondo lattice with disorder (Vol. 51, No. 3)

Many-body localisation in generalized Kondo lattice with disorder (Vol. 51, No. 3)

Schematic demonstrations of the decoherent state (left panel) and the localised state (right panel).

Many-body localisation (MBL) has gained widespread attentions in theoretical and experimental physics, the scenario of which is essentially different with that of the Anderson’s localization (AL).

In this work, we study the MBL transition in a generalised Kondo lattice, where a one-dimensional Hubbard chain with disordered spin-orbit coupling couples to a fixed impurity of spin 1/2. Based on exact diagonalisation, we calculate various quantities that can distinguish an MBL state from either an AL state or a thermal state. The model can be implemented in ultra-cold Fermi gases of alkaline-earth-like atoms in one-dimensional optical lattices and Raman-assisted spin-orbit coupling.

Reference

Ye Cao and Wei Zhang, Many-body localisation in generalized Kondo lattice with disorder, EPL 129 2000 (2020)
[Abstract]