Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session W50: Correlated Chains and 1D Models
8:00 AM–10:48 AM,
Friday, March 6, 2020
Room: Mile High Ballroom 1C
Sponsoring
Unit:
DCMP
Chair: Daniel Agterberg, University of Wisconsin - Milwaukee
Abstract: W50.00013 : One-dimensional repulsive Hubbard model with mass imbalance
Presenter:
Yuchi He
(Carnegie Mellon University)
Authors:
Yuchi He
(Carnegie Mellon University)
David Pekker
(University of Pittsburgh)
Roger Mong
(University of Pittsburgh)
We argue that this phase is a topological critical phase, based on our observation of a long-range string order and the absence of an odd-even effect. We also find, using DMRG, that at $1/3$ filling, commensurate effects lead to two additional phases: a crystal phase and a trion phase. Finally, we demonstrate how all of these phases descend from Tomonaga-Luttinger liquid theory.
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