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he transfer of a quantum state between distant locations can be realized using condensed matter systems such as spin chains and Josephson junction arrays. The
 

Summary: he transfer of a quantum state between distant locations can be realized using
condensed matter systems such as spin chains and Josephson junction arrays. The
feasibility of such proposals may open the way to use solid state devices also forTquantum communication protocols.
The ability to transfer a quantum state as a quantum channel over reasonable
between distant parties is one of the basic distances (~ 100 lattice sites). A great
requirements in many quantum advantage of this approach is that state
information protocols, we mention for transfer occurs solely because of the type
example quantum key distribution or of interaction between the spin of the chain
teleportation. A successful arena where the and no dynamical control is required
implementation of quantum state except for the preparation and the
transmission has been realized is quantum detection of the state. More interestingly,
optics. The carriers of information perfect transmission over arbitrary distance
(photons) can be addressed and is possible [2,3] if the coupling is chosen
transmitted with accurate control and with appropriately. We addressed the effect of
a low level of decoherence. Very recently, the static imperfections [4] on the protocol
in view of the great potential of solid-state of Christandl et al. [2]. The quantum
quantum information, attention is also communication between two parties can
focusing on the problem of the transfer of be significantly improved if the receiver is
quantum information in a solid state allowed to store the received signals in a
environment. A possible way to follow quantum memory before decoding them

  

Source: Abbondandolo, Alberto - Scuola Normale Superiore of Pisa

 

Collections: Mathematics