2007/08/21 by Irene D'Amico, Irene D’Amico, Brendon W. Lovett +1 · 1 citation
Computer Science · Physics and Astronomy · #Computer science #Multipartite entanglement #Neural Networks and Reservoir Computing #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum channel #Quantum entanglement #Quantum mechanics #Quantum network #Quantum teleportation #Qubit #Spin (aerodynamics) #Squashed entanglement #Teleportation #W state #quant-ph
paper · pdf · doi:10.1103/physreva.76.030302
published as Phys. Rev. A 76 030302(R) (2007) · 5 pages, to appear in Phys. Rev. A (Rapid Communication)
arxiv created 2007/08/21 · openalex publication_date 2007/09/12 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We show how to freeze distributed entanglement that has been created from the natural dynamics of spin chain systems. The technique that we propose simply requires single-qubit operations and isolates the entanglement in specific qubits at the ends of branches. Such frozen entanglement provides a useful resource, for example for teleportation or distributed quantum processing. The scheme can be applied to a wide range of systems---including actual spin systems and alternative qubit embodiments in strings of quantum dots, molecules, or atoms.