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50 papers · 1 filter
Adiabatic Bottlenecks in Quantum Annealing and Nonequilibrium Dynamics of Paramagnons
Tim Bode, Frank K. Wilhelm
The correspondence between long-range interacting quantum spin glasses and combinatorial optimization problems underpins the physical motivation for adiabatic quantum computing. On…
Characterization of Anisotropic Gaussian Random Fields by Minkowski Tensors
Michael Andreas Klatt, Max Hörmann, Klaus Mecke
Gaussian random fields are among the most important models of amorphous spatial structures and appear across length scales in a variety of physical, biological, and geological appl…
Reentrant Random Quantum Ising Antiferromagnet
Péter Lajkó, Jean-Christian Anglès d'Auriac, Heiko Rieger +1
We consider the quantum Ising chain with uniformly distributed random antiferromagnetic couplings and uniformly distributed random transverse fields ($Γ_0 \le Γ…
The effect of disorder on the phase diagrams of hard-core lattice bosons with cavity-mediated long-range and nearest-neighbor interactions
Chao Zhang, Heiko Rieger
We use quantum Monte Carlo simulations with the worm algorithm to study the phase diagram of a two-dimensional Bose-Hubbard model with cavity-mediated long-range interactions and u…
Phase diagrams of the disordered Bose-Hubbard model with cavity-mediated long-range and nearest-neighbor interactions
Chao Zhang, Heiko Rieger
Recent experiments with ultracold atoms in an optical lattice have realized cavity-mediated long-range interaction and observed the emergence of a supersolid phase and a density wa…
Many-body localization in presence of cavity mediated long-range interactions
Piotr Sierant, Krzysztof Biedroń, Giovanna Morigi +1
We show that a one-dimensional Hubbard model with all-to-all coupling may exhibit many-body localization in the presence of local disorder. We numerically identify the parameter sp…