20–23 Jun 2022
Max Planck Institut für Festkörperforschung
Europe/Berlin timezone

A solvable 3D Kondo lattice exhibiting odd-frequency pairing and order fractionalization

21 Jun 2022, 11:15
30m
2D5 (Max Planck Institut für Festkörperforschung)

2D5

Max Planck Institut für Festkörperforschung

Speaker

Dr Alexei Tsvelik (Brookhaven National Laboratory)

Description

The Kondo
lattice model
plays a key role in our
understanding of quantum materials,
but a lack of small parameters has posed a
long-standing problem. We
present a 3 dimensional
S$=1/2$ Kondo lattice model describing a spin liquid within an
electron sea. Strong correlations in the spin liquid
are treated exactly, enabling a controlled analytical approach. The
solution describes a plethora of emergent phenomena, including odd-frequency pairing, pair density wave
formation and order fractionalization. The
ground-state state is a pair
density wave with a fractionalized charge $e$,
$S=1/2$ order parameter, formed between electrons and
Majorana fermions.

Primary author

Dr Alexei Tsvelik (Brookhaven National Laboratory)

Presentation materials

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