Use of dynamical coupling for improved quantum state transfer
Authors:
- A. O. LyakhovALA. O. Lyakhov
- C. BruderCBC. Bruder
- 1 December 2006
- journal article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 74 (23)
Abstract
We propose a method to improve quantum state transfer in transmission lines. The idea is to localize the information on the last qubit of a transmission line, by dynamically varying the coupling constants between the first and the last pair of qubits. The fidelity of state transfer is higher then in a chain with fixed coupling constants. The effect is stable against small fluctuations in the system parameters.Keywords
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