bosonization 1correlation functions 1luttinger liquid 1one-dimensional fermions 1two-particle density matrix 1
From the 1 of 2 linked papers with an AI index.
2 papers
cond-mat.str-el2026
The two-particle density matrix of a Luttinger liquid
Harini Radhakrishnan, Matthias Thamm, Hatem Barghathi +2
The paper derives an exact finite-size formula for the equal-time two‑particle reduced density matrix of spinless fermions in a Tomonaga‑Luttinger liquid, revealing how its decay a…
cond-mat.quant-gas2025
Berezinskii-Kosterlitz-Thouless Renormalization Group Flow at a Quantum Phase Transition
Matthias Thamm, Harini Radhakrishnan, Hatem Barghathi +4
We present a controlled numerical study of the Berezinskii-Kosterlitz-Thouless (BKT) transition in the one-dimensional Bose-Hubbard model at unit filling, providing evidence of the…