Tunable itinerant spin dynamics with polar molecules

JR Li, K Matsuda, C Miller, AN Carroll, WG Tobias… - Nature, 2023 - nature.com
Strongly interacting spins underlie many intriguing phenomena and applications,,–ranging
from magnetism to quantum information processing. Interacting spins combined with motion …

Frustrated Extended Bose-Hubbard Model and Deconfined Quantum Critical Points with Optical Lattices at the Antimagic Wavelength

N Baldelli, CR Cabrera, S Julià-Farré, M Aidelsburger… - Physical Review Letters, 2024 - APS
The study of geometrically frustrated many-body quantum systems is of central importance to
uncover novel quantum mechanical effects. We design a scheme where ultracold bosons …

Realizing a symmetry protected topological phase through dimerized interactions

S Mondal, A Padhan, T Mishra - Physical Review B, 2022 - APS
We show that a one-dimensional lattice of spinless fermions can undergo a topological
phase transition only due to the effect of interaction. By allowing a dimerized interaction …

Quantum phases of constrained bosons on a two-leg Bose-Hubbard ladder

A Padhan, R Parida, S Lahiri, MK Giri, T Mishra - Physical Review A, 2023 - APS
Bosons in periodic potentials with very strong local interactions, known as constrained
bosons, often exhibit interesting physical behavior. We investigate the ground-state …

Unconventional phases of attractive Fermi gases in synthetic Hall ribbons

SK Ghosh, S Greschner, UK Yadav, T Mishra, M Rizzi… - Physical Review A, 2017 - APS
An innovative way to produce quantum Hall ribbons in a cold atomic system is to use M
hyperfine states of atoms in a one-dimensional optical lattice to mimic an additional …

Quantum Monte Carlo study of superradiant supersolid of light in the extended Jaynes-Cummings-Hubbard model

H Wei, J Zhang, S Greschner, TC Scott, W Zhang - Physical Review B, 2021 - APS
Searching for and investigating supersolids is a long-term outstanding problem in physics. In
addition to the solid element He 4 and cold atoms as potential candidates for the supersolid …

Different lattice geometries with a synthetic dimension

D Suszalski, J Zakrzewski - Physical Review A, 2016 - APS
The possibility of creating different geometries with the help of an extra synthetic dimension
in optical lattices is studied. The additional linear potential together with Raman-assisted …

Competing insulating phases in a dimerized extended Bose-Hubbard model

A Hayashi, S Mondal, T Mishra, BP Das - Physical Review A, 2022 - APS
We study the ground-state properties of the extended Bose-Hubbard model in a one-
dimensional dimerized optical lattice. In the limit of strong on-site repulsion, ie, hardcore …

Enhanced repulsively bound atom pairs in topological optical lattice ladders

S Flannigan, AJ Daley - Quantum Science and Technology, 2020 - iopscience.iop.org
There is a growing interest in using cold-atom systems to explore the effects of strong
interactions in topological band structures. Here we investigate interacting bosons in a …

Supersolid and pair correlations of the extended Jaynes-Cummings-Hubbard model on triangular lattices

L Guo, S Greschner, S Zhu, W Zhang - Physical Review A, 2019 - APS
We study the extended Jaynes-Cummings-Hubbard model on triangular cavity lattices and
zigzag ladders. By using density-matrix renormalization-group methods, we observe various …