9 citations · 36 across the 17 of their papers we have counts for
11 papers · 1 filter
Structure and Dynamics of Bose Polarons across the Mott-Insulator to Superfluid Transition
Ragheed Alhyder, Alessio Recati, Georg M. Bruun
A mobile impurity particle immersed in a quantum degenerate gas leads to the formation of a quasiparticle, which can serve as a sensor for its environment. Here, we develop a unifi…
Crossing the Rotational Sound Barrier in a Quantum Solvent
Baptiste Coquinot, Giacomo Bighin, Mikhail Lemeshko +1
Molecules embedded in superfluids provide an experimentally controllable platform for investigating impurity physics. Here, we investigate a driven molecule rotating in a superflui…
Engineering SU()-Symmetric Hubbard Models with Microwave-Shielded Dipolar Molecules
Jing-Lun Li, Ragheed Alhyder, Andreas Schindewolf +3
Ultracold polar molecules provide strong, long-range interactions that microwave shielding makes tunable and nearly nuclear-spin independent, giving an emergent SU() symmetry. H…
Scale invariance of the polaron energy at the Mott-superfluid critical point
Matija Čufar, Ragheed Alhyder, C. J. Bradly +4
Continuous quantum phase transitions are characterized by an order parameter and correlation functions that are often challenging to access experimentally or in direct numerical si…
Fluctuation-Induced Supersolidity at the Superfluid-Solid Interface
Baptiste Coquinot, Ragheed Alhyder, Alberto Cappellaro +1
Supersolidity, combining superfluid and crystalline orders, has been realized in dipolar Bose-Einstein condensates by tuning interatomic interactions. Here we show that supersolidi…
Phenomenological model of decaying Bose polarons
Ragheed Alhyder, Georg M. Bruun, Thomas Pohl +2
Cold atom experiments show that a mobile impurity particle immersed in a Bose-Einstein condensate forms a well-defined quasiparticle (Bose polaron) for weak to moderate impurity-bo…
Tunable Field-Linked -wave Interactions in Dipolar Fermi Mixtures
Jing-Lun Li, Georgios M. Koutentakis, Mateja Hrast +3
Spin mixtures of degenerate fermions are a cornerstone of quantum many-body physics, enabling superfluidity, polarons, and rich spin dynamics through -wave scattering resonances…
Lattice Bose polarons at strong coupling and quantum criticality
Ragheed Alhyder, Victor E. Colussi, Matija Čufar +3
We develop a new theoretical framework for exploring a mobile impurity interacting strongly with a highly correlated bath of bosons in the quantum critical regime of a Mott insulat…
Exploring beyond-mean-field logarithmic divergences in Fermi-polaron energy
Ragheed Alhyder, Frédéric Chevy, Xavier Leyronas
We perform a diagrammatic analysis of the energy of a mobile impurity immersed in a strongly interacting two component Fermi gas to second order in the impurity-bath interaction. T…
A Multi-Purpose Platform for Analog Quantum Simulation
Shuwei Jin, Kunlun Dai, Joris Verstraten +6
Atom-based quantum simulators have had tremendous success in tackling challenging quantum many-body problems, owing to the precise and dynamical control that they provide over the…
Mobile impurity probing a two-dimensional superfluid phase transition
Ragheed Alhyder, Georg M. Bruun
The use of atomically sized quantum systems as highly sensitive measuring devices represents an exciting and quickly growing research field. Here, we explore the properties of a qu…