Entanglement in Anderson Nanoclusters
arXiv:cond-mat/0607752 · doi:10.1103/PhysRevB.75.132405
Abstract
We investigate the two-particle spin entanglement in magnetic nanoclusters described by the periodic Anderson model. An entanglement phase diagram is obtained, providing a novel perspective on a central property of magnetic nanoclusters, namely the temperature dependent competition between local Kondo screening and nonlocal Ruderman-Kittel-Kasuya-Yoshida spin ordering. We find that multiparticle entangled states are present for finite magnetic field as well as in the mixed valence regime and away from half filling. Our results emphasize the role of charge fluctuations.
5 pages, 3 figures
References in corpus (23)
- Entanglement of Formation of an Arbitrary State of Two Qubits
- Three qubits can be entangled in two inequivalent ways
- Distributed Entanglement
- Scaling of Entanglement close to a Quantum Phase Transitions
- Entanglement in a simple quantum phase transition
- Natural Thermal and Magnetic Entanglement in 1D Heisenberg Model
- Entanglement in the Quantum Heisenberg XY model
- Entanglement and quantum phase transition in the extended Hubbard model
- Local entanglement and quantum phase transition in the Hubbard model
- The entanglement of indistinguishable particles shared between two parties
- Entangled Rings
- Tunable Non-local Spin Control in a Coupled Quantum Dot System
- Thermal entanglement in three-qubit Heisenberg models
- Entanglement Scaling in the One-Dimensional Hubbard Model at Criticality
- Single-Site Entanglement of Fermions at a Quantum Phase Transition
- Quantum Entanglement in the Two Impurity Kondo Model
- Thermal entanglement properties of small spin clusters
- Dimerization induced by the RKKY interaction
- Kondo Lattice Model with Finite Temperature Lanczos Method
- Entanglement of an impurity and conduction spins in the Kondo model
- Entanglement in the One-dimensional Kondo Necklace Model
- Tunable "Doniach Phase Diagram" for strongly-correlated nanoclusters
- Disordered Kondo Nanoclusters: Effect of Energy Spacing
Cited by in corpus (5)
- Entanglement entropy in quantum impurity systems and systems with boundaries
- Signature of Quantum Entanglement in NH4CuPO4.H2O
- Can we always get the entanglement entropy from the Kadanoff-Baym equations? The case of the T-matrix approximation
- Nonequilibrium Kondo-vs-RKKY Scenarios in Nanoclusters
- Kondo spectral functions at low-temperatures: A dynamical-exchange-correlation-field perspective