Two-spin entanglement induced by electron scattering in nanostructures
arXiv:cond-mat/0607603 · doi:10.1103/PhysRevB.74.153308
Abstract
We present a model where two magnetic impurities in a discrete tight-binding ring become entangled because of scattering processes associated to the injection of a conduction electron. We introduce a weak coupling approximation that allows us to solve the problem in a analytical way and compare the theory with the exact numerical results. We obtain the generation of entanglement both in a deterministic way and in a probabilistic one. The first case is intrinsically related to the structure of the two-impurity reduced density matrix, while the second one occurs when a projection on the electron state is performed.
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- Entanglement-induced electron coherence in a mesoscopic ring with two magnetic impurities
- Efficient Generation of a Maximally Entangled State by Repeated On- and Off-Resonant Scattering of Ancilla Qubits
- Optimal electron propagation on a quantum chain by a topological phase
- Teleportation between distant qudits via scattering of mobile qubits
- Rising time of entanglement between scattering spins
- Extraction of an Entanglement by Repetition of the Resonant Transmission of an Ancilla Qubit
- Impurity entanglement through electron scattering in a magnetic field
- Scattering solution of interacting Hamiltonian for electronic control of molecular spin qubits
- Entanglement Generation by a Three-Dimensional Qubit Scattering: Concurrence vs. Path (In)Distinguishability
- Interaction between hopping and static spins in a discrete network