Multipartite entanglement generation assisted by inhomogeneous coupling

2011/11/21 by C. López, C. E. López, F. Lastra +3
Computer Science · Engineering · Physics and Astronomy · #Computer science #Coupling (piping) #Electrical engineering #Engineering #Hilbert space #Mechanical and Optical Resonators #Mode (computer interface) #Multipartite #Multipartite entanglement #Physics #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum entanglement #Quantum mechanics #Qubit #Squashed entanglement #Topology (electrical circuits) #W state #quant-ph

paper · pdf · doi:10.1103/physreva.85.032319

published as Phys. Rev. A 85, 032319 (2012) · 5 pages, 4 figures. Submitted for publication

arxiv created 2011/11/21 · openalex publication_date 2012/03/16 · arxiv updated 2015/06/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We show that controllable inhomogeneous coupling between two-level systems and a common data bus provides a fast mechanism to produce multipartite entanglement. Our proposal combines resonant interactions and engineering of coupling strengths---between the qubits and the single mode---leading to well-defined entangled states. Furthermore, we show that, if the two-level systems interact dispersively with the quantized mode, engineering of coupling strengths allows the controlled access of the symmetric Hilbert space of qubits.

Citations

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