Superadiabatic quantum state transfer in spin chains

Title

Superadiabatic quantum state transfer in spin chains

 Author

Agundez Mojarro, R.R. (TU Delft QN/Theoretical Physics)
Hill, C. D. (University of Melbourne)
Hollenberg, L.C.L (University of Melbourne)
Rogge, S. (TU Delft QN/Afdelingsbureau; University of New South Wales)
Blaauboer, M. (TU Delft QN/Blaauboer Group)

Date

2017-01-18

 Abstract

In this paper we propose a superadiabatic protocol where quantum state transfer can be achieved with arbitrarily high accuracy and minimal control across long spin chains with an odd number of spins. The quantum state transfer protocol only requires the control of the couplings between the qubits on the edge and the spin chain. We predict fidelities above 0.99 for an evolution of nanoseconds using typical spin-exchange coupling values of μeV. Furthermore, by building a superadiabatic formalism on top of this protocol, we propose an effective superadiabatic protocol that retains the minimal control over the spin chain and further improves the fidelity.


 To reference this document use:

http://resolver.tudelft.nl/uuid:bb46e743-3f16-482f-9f36-5fb68222d59e

 DOI

https://doi.org/10.1103/PhysRevA.95.012317

 ISSN

2469-9926

 Source

Physical Review A: covering atomic, molecular, and optical physics and quantum information, 95 (1)

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

© 2017 R.R. Agundez Mojarro, C. D. Hill, L.C.L Hollenberg, S. Rogge, M. Blaauboer
Files
PDF PhysRevA.95.012317.pdf 771.03 KB
Close viewer