10 papers
Variational non-gaussian approach to interacting spin-boson models
João Pedro Mendonça, Yao Wang, Krzysztof Jachymski
We apply a hybrid variational framework to interacting spin-boson Hamiltonians, targeting regimes where simulations are limited by the unbounded bosonic Hilbert space and strong ma…
Quantum statistics on atom-ion Feshbach resonances
Joachim Siemund, Fabian Thielemann, Jonathan Grieshaber +5
We investigate three-body recombination in a hybrid atom-ion system consisting of a single trapped Ba ion immersed in a two-component Fermi gas of Li atoms near an atom-ion Fes…
Effects of interaction range on the mean-field dynamics of Bose polarons
Piotr Wysocki, Ubaldo Cavazos Olivas, Marek Tylutki +1
We consider the three-dimensional Bose polaron problem in the regime of finite range interactions and competing length scales. Working in the reference frame of the impurity, we st…
Quantum engineering with ultracold polar molecules using trap-induced resonances
Sakthikumaran Ravichandran, Piotr Kulik, Krzysztof Jachymski
Polar molecules represent a promising platform for quantum simulation and computation protocols. Highly controllable arrays of optical tweezers are now accessible in experiments, a…
Dynamics of a Mobile Ion in a Bose-Einstein Condensate
Piotr Wysocki, Marek Tylutki, Krzysztof Jachymski
Characterization of the dynamics of an impurity immersed in a quantum medium is vital for fundamental understanding of matter as well as applications in modern day quantum technolo…
Controlled pairing symmetries in a Fermi-Hubbard ladder with band flattening
J. P. Mendonça, J. P. Mendonça, S. Biswas +8
Band flattening has been identified as key ingredient to correlation phenomena in Moiré materials and beyond. Here, we examine strongly repulsive fermions on a ladder -- a minimal…