Entanglement enhancement in spatially inhomogeneous many-body systems
arXiv:1209.3268 · doi:10.1103/PhysRevA.87.032311
Abstract
We investigate the effects of spatial inhomogeneities on the entanglement of modes of strongly correlated systems in the framework of small Fermi-Hubbard chains. We find regimes where entanglement is strongly enhanced by the presence of inhomogeneities. This contrasts recent reports of entanglement destruction due to inhomogeneities. We further study this phenomenon using concepts of Density Functional Theory and, thus, provide a general recipe for the prediction of entanglement enhancement in nanostructures. We find enhancement of up to ~24%, as compared to impurity-free chains.
arXiv commentAccepted by Phys. Rev. A
References in corpus (27)
- The density-matrix renormalization group
- Entanglement Entropy and Quantum Field Theory
- Area laws for the entanglement entropy - a review
- Entanglement in quantum critical phenomena
- Entanglement entropy and conformal field theory
- Semiconductor Superlattices: A model system for nonlinear transport
- Quantum Entanglement in Fermionic Lattices
- Magnetism in Disordered Graphene and Irradiated Graphite
- Universality of Entropy Scaling in 1D Gap-less Models
- Strongly interacting bosons in a disordered optical lattice
- A short review on entanglement in quantum spin systems
- Entanglement entropy in quantum impurity systems and systems with boundaries
- Controlling and Detecting Spin Correlations of Ultracold Atoms in Optical lattices
- Entanglement of indistinguishable particles in condensed matter physics
- Block-block entanglement and quantum phase transitions in one-dimensional extended Hubbard model
- Quantum Impurity Entanglement
- Adiabatic Preparation of a Heisenberg Antiferromagnet Using an Optical Superlattice
- Entanglement in spatially inhomogeneous many-fermion systems
- Entanglement entropy and entanglement witnesses in models of strongly interacting low-dimensional fermions
- The Hubbard model as an approximation to the entanglement in nanostructures
- Spin-1 Atoms in Optical Superlattices: Single-Atom Tunneling and Entanglement
- Entanglement from density measurements: analytical density-functional for the entanglement of strongly correlated fermions
- Feasibility of approximating spatial and local entanglement in long-range interacting systems using the extended Hubbard model
- Multiperiodic magnetic structures in Hubbard superlattices
- Universal and nonuniversal contributions to block-block entanglement in many-fermion systems
- Frustrated collisions and unconventional pairing on a quantum superlattice
- Transport properties of Andreev polarons in superconductor-semiconductor-superconductor junction with superlattice structure
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