Adiabatic quantum state transfer in tight-binding chains using periodic driving fields
Dipartimento di Fisica, Politecnico di Milano - Piazza L. da Vinci 32, I-20133 Milano, Italy and Istituto di Fotonica e Nanotecnologie del Consiglio Nazionale delle Ricerche, sezione di Milano Piazza L. da Vinci 32, I-20133 Milano, Italy
Received: 23 June 2014
Accepted: 8 August 2014
A method for high-fidelity coherent adiabatic transport in a zig-zag tight-binding chain, based on application of two external periodic driving fields, is theoretically proposed. The method turns out to be robust against imperfections and disorder of the static lattice Hamiltonian, is tolerant to next-nearest neighborhood interactions, and enables coherent transport in long chains without the need for a local control and timing of the trapping potential.
PACS: 05.60.Gg – Quantum transport / 03.67.Ac – Quantum algorithms, protocols, and simulations / 73.23.Ad – Ballistic transport
© EPLA, 2014