81 citations · 338 across the 17 of their papers we have counts for
14 papers · 1 filter
Ground states of one-dimensional dipolar lattice bosons at unit filling
Mateusz Łącki, Henning Korbmacher, G. A. Domínguez-Castro +2
Recent experiments on ultracold dipoles in optical lattices open exciting possibilities for the quantum simulation of extended Hubbard models. When considered in one dimension, the…
Random Kronig-Penney-type potentials for ultracold atoms using dark states
Mateusz Łącki, Jakub Zakrzewski
A construction of a quasi-random potential for cold atoms using dark states emerging in {level configuration} is proposed. Speckle laser fields are used as a source of randomne…
The role of interaction-induced tunneling in the dynamics of polar lattice bosons
Adith Sai Aramthottil, Mateusz Łącki, Luis Santos +1
Inter-site dipolar interactions induce, even in absence of disorder, an intriguing non-ergodic dynamics for dipolar bosons in an optical lattice. We show that the inherent dipole-i…
Optical lattice for tripod-like atomic level structure
Piotr Kubala, Jakub Zakrzewski, Mateusz Łącki
Standard optical potentials use off-resonant laser standing wave induced AC-Stark shift. In a recent development [Phys. Rev. Lett. {\bf 117}, 233001 (2016)] a three-level scheme in…
A dark state of Chern bands: Designing flat bands with higher Chern number
Mateusz Łącki, Jakub Zakrzewski, Nathan Goldman
We introduce a scheme by which flat bands with higher Chern number can be designed in ultracold gases through a coherent manipulation of Bloch bands. Inspired by q…
Coupled Atomic Wires in a Synthetic Magnetic Field
J. C. Budich, A. Elben, M. Łącki +3
We propose and study systems of coupled atomic wires in a perpendicular synthetic magnetic field as a platform to realize exotic phases of quantum matter. This includes (fractional…
Nano-Scale `Dark State' Optical Potentials for Cold Atoms
M. Łącki, M. Baranov, H. Pichler +1
We discuss generation of subwavelength optical barriers on the scale of tens of nanometers, as conservative optical potentials for cold atoms. These arise from non-adiabatic correc…
Locating the quantum critical point of the Bose-Hubbard model through singularities of simple observables
Mateusz Łącki, Bogdan Damski, Jakub Zakrzewski
We show that the critical point of the two-dimensional Bose-Hubbard model can be easily found through studies of either on-site atom number fluctuations or the nearest-neighbor two…
Quantum Hall Physics with Cold Atoms in Cylindrical Optical Lattices
Mateusz Łącki, Hannes Pichler, Antoine Sterdyniak +5
We propose and study various realizations of a Hofstadter-Hubbard model on a cylinder geometry with fermionic cold atoms in optical lattices. The cylindrical optical lattice is cre…
Bose-Hubbard model with random impurities: Multiband and nonlinear hopping effects
Julia Stasińska, Mateusz Łącki, Omjyoti Dutta +2
We investigate the phase diagrams of theoretical models describing bosonic atoms in a lattice in the presence of randomly localized impurities. By including multiband and nonlinear…
Tunneling-Induced Restoration of the Degeneracy and the Time-Reversal Symmetry Breaking in Optical Lattices
Tomasz Sowiński, Mateusz Łacki, Omjyoti Dutta +5
We study the ground-state properties of bosons loaded into the -band of a one dimensional optical lattice. We show that the phase diagram of the system is substantially affected…
Fast dynamics for atoms in optical lattices
Mateusz Lacki, Jakub Zakrzewski
Cold atoms in optical lattices allow for accurate studies of many body dynamics. Rapid time-dependent modifications of optical lattice potentials may result in significant excitati…
Dynamics of cold bosons in optical lattices: Effects of higher Bloch bands
Mateusz Lacki, Dominique Delande, Jakub Zakrzewski
The extended effective multiorbital Bose-Hubbard-type Hamiltonian which takes into account higher Bloch bands, is discussed for boson systems in optical lattices, with emphasis on…
Numerical Computation of Dynamically Important Excited States of Many-Body Systems
Mateusz Lacki, Dominique Delande, Jakub Zakrzewski
We present an extension of the time-dependent Density Matrix Renormalization Group (t-DMRG), also known as Time Evolving Block Decimation algorithm (TEBD), allowing for the computa…