Quantum state transfer through spin-chains
 
Nguyen Ba An
Hanoi Insitute of Physics & KIAS
 
Transferring quantum information encoded in quantum states from one spin-system to another is
 necessary in quantum information processing and quantum computing. When the systems are far
 apart, photons can serve as the most suitable carriers of quantum information. This, however, has
 difficulties in the interfacing problem. When the systems are close to each other, quantum state
 transfer can be done through spin-chains that directly connect the systems, without resorting to
 photons. In this talk, methods for quantum state transfer through spin-chains will be presented,
 exploiting a sequence of in-time swapping gates, natural evolution or proper measurement-based
 strategies.