3 papers
cond-mat.quant-gas2026
Scale invariance of the polaron energy at the Mott-superfluid critical point
Matija Äufar, 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…
cond-mat.quant-gas2025
Probing non-Gaussian correlations through entanglement generation in a many-body quantum system
J. van de Kraats, D. J. M. Ahmed-Braun, V. E. Colussi +1
In understanding strongly correlated quantum systems, quantifying the non-Gaussian nature of interparticle correlations is invaluable. We show that, for a uniform quantum gas, ther…
cond-mat.quant-gas2024
Lattice Bose polarons at strong coupling and quantum criticality
Ragheed Alhyder, Victor E. Colussi, Matija Äufar +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…