Resonant Scattering Can Enhance the Degree of Entanglement

Abstract

Generation of entanglement between two qubits by scattering an entanglement mediator is discussed. The mediator bounces between the two qubits and exhibits a resonant scattering. It is clarified how the degree of the entanglement is enhanced by the constructive interference of such bouncing processes. Maximally entangled states are available via adjusting the incident momentum of the mediator or the distance between the two qubits, but their fine tunings are not necessarily required to gain highly entangled states and a robust generation of entanglement is possible.

7 pages, 13 figures

References in corpus (7)

• Robust creation of entanglement between ions in spatially separate cavities
• Qubit feedback and control with kicked quantum nondemolition measurements: A quantum Bayesian analysis
• Parity meter for charge qubits: an efficient quantum entangler
• Entanglement of Two Impurities through Electron Scattering
• Entanglement Controlled Single-Electron Transmittivity
• Distillation of Entanglement between Distant Systems by Repeated Measurements on Entanglement Mediator
• A Simple Scheme to Entangle Distant Qubits from a Mixed State via an Entanglement Mediator

Cited by in corpus (7)

• Electron Fabry-Perot interferometer with two entangled magnetic impurities
• Extraction of Singlet States from Noninteracting High-Dimensional Spins
• Entanglement-induced electron coherence in a mesoscopic ring with two magnetic impurities
• Entanglement Generation by Qubit Scattering in Three Dimensions
• On demand entanglement in double quantum dots via coherent carrier scattering
• Entanglement creation in semiconductor quantum dot charge qubit
• Interaction between hopping and static spins in a discrete network