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10 papers · 2 filters
Cluster dynamics in two-dimensional lattice gases with inter-site interactions
Wei-Han Li, Arya Dhar, Xiaolong Deng +1
Sufficiently strong inter-site interactions in extended-Hubbard and XXZ spin models result in dynamically-bound clusters at neighboring sites. We show that the dynamics of these cl…
Dynamical formation of polarons in a Bose-Einstein condensate: A variational approach
L. A. Peña Ardila
We investigate the non-equilibrium dynamics of an impurity coupled to a Bose-Einstein condensate, systematically compared with recent experimental results [M. G. Skou et al., Nat.…
Dynamics for the Haldane phase in the Bilinear-Biquadratic Model
Arya Dhar, Daniel Jaschke, Lincoln D. Carr
The BBM is a promising candidate to study spin-one systems and to design quantum simulators based on its underlying Hamiltonian. The variety of different phases contains amongst ot…
Excited-state quantum phase transitions in spinor Bose-Einstein condensates
Polina Feldmann, Carsten Klempt, Augusto Smerzi +2
Excited-state quantum phase transitions (ESQPTs) extend the notion of quantum phase transitions beyond the ground state. They are characterized by closing energy gaps amid the spec…
Universal quantum computation and quantum error correction with ultracold atomic mixtures
Valentin Kasper, Daniel González-Cuadra, Apoorva Hegde +7
Quantum information platforms made great progress in the control of many-body entanglement and the implementation of quantum error correction, but it remains a challenge to realize…
Collective modes and superfluidity of a two-dimensional ultracold Bose gas
Vijay Pal Singh, Ludwig Mathey
The collective modes of a quantum liquid shape and impact its properties profoundly, including its emergent phenomena such as superfluidity. Here we present how a two-dimensional B…