Quantum-state transfer via resonant tunneling through local-field-induced barriers

Efficient quantum-state transfer is achieved in a uniformly coupled spin-1/2 chain, with open boundaries, by application of local magnetic fields on the second and last-but-one spins, respectively. These effective barriers induce the appearance of two eigenstates, bilocalized at the edges of the chain, which allow a high-quality transfer also at relatively long distances. The same mechanism may be used to send an entire e-bit (e.g., an entangled qubit pair) from one to the other end of the chain

Quantum-state transfer via resonant tunneling through local-field-induced barriers / Lorenzo, S; Apollaro, Tjg; Sindona, Antonio; Plastina, Francesco. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 87:4(2013), pp. 042313.042313-1-042313.042313-8.



Titolo: Quantum-state transfer via resonant tunneling through local-field-induced barriers
Autori: 
SINDONA, Antonio
PLASTINA, Francesco
mostra contributor esterni 
Data di pubblicazione: 2013
Rivista: 
PHYSICAL REVIEW A  
Citazione: Quantum-state transfer via resonant tunneling through local-field-induced barriers / Lorenzo, S; Apollaro, Tjg; Sindona, Antonio; Plastina, Francesco. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 87:4(2013), pp. 042313.042313-1-042313.042313-8.
Handle: http://hdl.handle.net/20.500.11770/157552
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http://hdl.handle.net/20.500.11770/157552
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