Topological quantum matter with cold atoms

DW Zhang, YQ Zhu, YX Zhao, H Yan… - Advances in Physics, 2018 - Taylor & Francis
This is an introductory review of the physics of topological quantum matter with cold atoms.
Topological quantum phases, originally discovered and investigated in condensed matter …

Quantum phases of canted dipolar bosons in a two-dimensional square optical lattice

S Bandyopadhyay, R Bai, S Pal, K Suthar, R Nath… - Physical Review A, 2019 - APS
We consider a minimal model to describe the quantum phases of ultracold dipolar bosons in
two-dimensional square optical lattices. The model is a variation of the extended Bose …

Charge and statistics of lattice quasiholes from density measurements: A tree tensor network study

E Macaluso, T Comparin, RO Umucalılar, M Gerster… - Physical Review …, 2020 - APS
We numerically investigate the properties of the quasihole excitations above the bosonic
fractional Chern insulator state at filling ν= 1/2, in the specific case of the Harper-Hofstadter …

Supersolid phase of the extended Bose-Hubbard model with an artificial gauge field

K Suthar, H Sable, R Bai, S Bandyopadhyay, S Pal… - Physical Review A, 2020 - APS
We examine the zero-and finite-temperature phase diagrams of soft-core bosons of the
extended Bose-Hubbard model on a square optical lattice. To study various quantum …

Staggered quantum phases of dipolar bosons at finite temperatures

K Suthar, KK Ng - Physical Review A, 2022 - APS
The extended Bose-Hubbard model with correlated tunneling exhibits staggered superfluid
and supersolid quantum phases. We study finite-temperature phase transitions of quantum …

Staggered superfluid phases of dipolar bosons in two-dimensional square lattices

K Suthar, R Kraus, H Sable, D Angom, G Morigi… - Physical Review B, 2020 - APS
We study the quantum ground state of ultracold bosons in a two-dimensional square lattice.
The bosons interact via the repulsive dipolar interactions and s-wave scattering. The …

Segregated quantum phases of dipolar bosonic mixtures in two-dimensional optical lattices

R Bai, D Gaur, H Sable, S Bandyopadhyay, K Suthar… - Physical Review A, 2020 - APS
We identify the quantum phases in a binary mixture of dipolar bosons in two-dimensional
optical lattices. Our study is motivated by the recent experimental realization of binary …

Quantum phases of dipolar bosons in a multilayer optical lattice

S Bandyopadhyay, H Sable, D Gaur, R Bai, S Mukerjee… - Physical Review A, 2022 - APS
We consider a minimal model to investigate the quantum phases of hardcore, polarized
dipolar atoms confined in multilayer optical lattices. The model is a variant of the extended …

Spin-orbit-coupling-driven superfluid states in optical lattices at zero and finite temperatures

K Suthar, P Kaur, S Gautam, D Angom - Physical Review A, 2021 - APS
We investigate the quantum phase transitions of a two-dimensional Bose-Hubbard model in
the presence of a Rashba spin-orbit coupling with and without thermal fluctuations. The …

Exact diagonalization using hierarchical wave functions and calculation of topological entanglement entropy

D Gaur, H Sable, D Angom - Physical Review A, 2024 - APS
In this work we describe a technique for numerical exact diagonalization. The method is
particularly suitable for cold bosonic atoms in optical lattices, in which multiple atoms can …