title: Perfect state transfer on a spin chain without state initialization.
abstract: We demonstrate that perfect state transfer can be achieved using an engineered spin chain and clean local end-chain operations, without requiring the initialization of the state of the medium nor fine-tuning of control pulses. This considerably relaxes the prerequisites for obtaining reliable transfer of quantum information across interacting-spin systems. Moreover, it allows us to shed light on the interplay among purity, entanglement, and operations on a class of many-body systems potentially useful for quantum information processing tasks.
authors.affiliation: School of Mathematics and Physics, Queen's University, Belfast BT7 1NN, United Kingdom.
authors.forename: C
authors.initials: C
authors.lastname: Di Franco
authors.forename: M
authors.initials: M
authors.lastname: Paternostro
authors.forename: M S
authors.initials: MS
authors.lastname: Kim