2001/02/06 by G. Alber, Gernot Alber, A. Delgado +3 · 1 citation
Computer Science · Physics and Astronomy · #Advanced Fiber Laser Technologies #Mechanical and Optical Resonators #Quantum Information and Cryptography #quant-ph
paper · pdf · doi:10.1088/0305-4470/34/42/307
This manuscript is based on results of our previous manuscript 'Generalized quantum XOR-gate for quantum teleportation and state purification in arbitrary dimensional Hilbert spaces'
arxiv created 2001/02/06 · openalex publication_date 2001/10/15 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
A new purification scheme is proposed which applies to arbitrary dimensional bipartite quantum systems. It is based on the repeated application of a special class of nonlinear quantum maps and a single, local unitary operation. This special class of nonlinear quantum maps is generated in a natural way by a Hermitian generalized XOR-gate. The proposed purification scheme offers two major advantages, namely it does not require local depolarization operations at each step of the purification procedure and it purifies more efficiently than other known purification schemes.