Journal
INTERNATIONAL JOURNAL OF QUANTUM INFORMATION
Volume 8, Issue 4, Pages 641-676Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0219749910006514
Keywords
Perfect state transfer; Hamiltonian engineering
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We review the subject of perfect state transfer-how one designs the (fixed) interactions of a chain of spins so that a quantum state, initially inserted on one end of the chain, is perfectly transferred to the opposite end in a fixed time. The perfect state transfer systems are then used as a constructive tool to design Hamiltonian implementations of other primitive protocols such as entanglement generation and signal amplification in measurements, before showing that, in fact, universal quantum computation can be implemented in this way.
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