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Coherent state transfer via highly mixed quantum spin chains
Paola Cappellaro, Lorenza Viola, Chandrasekhar Ramanathan
Spin chains have been proposed as quantum wires in many quantum information processing architectures. Coherent transmission of quantum information over short distances is enabled b…
Limits on Preserving Quantum Coherence using Multi-Pulse Control
Kaveh Khodjasteh, Tamás Erdélyi, Lorenza Viola
We explore the physical limits of pulsed dynamical decoupling methods for decoherence control as determined by finite timing resources. By focusing on a decohering qubit controlled…
Information preserving structures: A general framework for quantum zero-error information
Robin Blume-Kohout, Hui Khoon Ng, David Poulin +1
Quantum systems carry information. Quantum theory supports at least two distinct kinds of information (classical and quantum), and a variety of different ways to encode and preserv…