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Abstract:
Based on shortcuts to adiabaticity and quantum Zeno dynamics, we present a protocol to implement quantum state transfer (QST) in a quantum spin-1/2 chain. In the protocol, the complex Hamiltonian of an N-site system is simplified, and a simple effective Hamiltonian is present. It is shown that only the control of the coupling strengths between the boundary spins and the bulk spins are required for QST. Numerical simulations demonstrate that the protocol possesses high efficiency and is robust against the decay and the fluctuations of the control fields. The protocol might provide an alternative choice for transferring quantum states via spin chain systems.
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PHYSICAL REVIEW A
ISSN: 2469-9926
Year: 2018
Issue: 1
Volume: 97
2 . 9 0 7
JCR@2018
2 . 6 0 0
JCR@2023
ESI Discipline: PHYSICS;
ESI HC Threshold:158
JCR Journal Grade:2
CAS Journal Grade:2
Cited Count:
WoS CC Cited Count: 36
SCOPUS Cited Count: 33
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
Affiliated Colleges: