2017/02/28 by Joachim Stolze, J. Stolze, A. I. Zenchuk · 3 citations
Computer Science · Mathematics · Physics and Astronomy · #Algorithm #Channel (broadcasting) #Computer science #Line (geometry) #Mathematics #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum mechanics #Qubit #Simple (philosophy) #Spins #State (computer science) #Telecommunications #Topology (electrical circuits) #quant-ph
paper · pdf · doi:10.1016/j.physleta.2017.05.064
published in Physics Letters A 381(31), 2489-2496 (Elsevier BV) · 19 pages, 8 figures
openalex publication_date 2017/06/05 · arxiv created 2017/06/07 · arxiv updated 2019/05/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We consider the remote creation of a mixed state in a one-qubit receiver connected to two two-qubit senders via different channels. Channels are assumed to be chains of spins (qubits) with nearest-neighbor interactions, no external fields are being applied. The problem of sharing the creatable region of the receiver's state-space between two senders is considered for a communication line with the receiver located asymmetrically with respect to these senders (asymmetric communication line). An example of a quantum register realizing simple functions is constructed on the basis of a symmetric communication line. In that setup, the initial states of the two senders serve as input and control signals, respectively, while the state of the receiver at a proper time instant is considered as the output signal.