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Entanglement Complexity in Quantum Many-Body Dynamics, Thermalization and Localization
Entanglement is usually quantified by von Neumann entropy, but its properties are much more complex than what can be expressed with a single number. We show that the three distinct dynamical phases
Extended Bose Hubbard model of interacting bosonic atoms in optical lattices: From superfluidity to density waves
For systems of interacting, ultracold spin-zero neutral bosonic atoms, harmonically trapped and subject to an optical lattice potential, we derive an Extended Bose Hubbard (EBH) model by developing a
Discord of response
The presence of quantum correlations in a quantum state is related to the stateʼs response to local unitary perturbations. Such a response is quantified by the distance between the unperturbed and
Topological and nematic ordered phases in many-body cluster-Ising models
We present a fully analytically solvable family of models with many-body cluster interaction and Ising interaction. This family exhibits two phases, dubbed cluster and Ising phases, respectively. The
Long-distance entanglement in many-body atomic and optical systems
We discuss the phenomenon of long-distance entanglement (LDE) in the ground state of quantum spin models, its use in high-fidelity and robust quantum communication, and its realization in many-body
Mixtures of strongly interacting bosons in optical lattices.
TLDR
The robustness against the inhomogeneity typical of realistic experimental realizations of the glassy quantum emulsions recently predicted to occur in strongly interacting boson-boson mixtures on ideal homogeneous lattices is investigated.
Mutual information and spontaneous symmetry breaking
We show that the metastable, symmetry-breaking ground states of quantum many-body Hamiltonians have vanishing quantum mutual information between macroscopically separated regions and are thus the
Geometric characterization of separability and entanglement in pure Gaussian states by single-mode unitary operations
We present a geometric approach to the characterization of separability and entanglement in pure Gaussian states of an arbitrary number of modes. The analysis is performed adapting to continuous
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