TY  - JOUR
AU  - Petrović, Jovana S.
AU  - Veerman, J.J.P.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7739
AB  - The faithful state transfer is an important requirement in the construction of classical and quantum computers. While the highspeed transfer is realized by optical-fibre interconnects, its implementation in integrated optical circuits is affected by cross-talk. The cross-talk between densely packed optical waveguides limits the transfer fidelity and distorts the signal in each channel, thus severely impeding the parallel transfer of states such as classical registers, multiple qubits and qudits. Here, we leverage on the suitably engineered cross-talk between waveguides to achieve the parallel transfer on optical chip. Waveguide coupling coefficients are designed to yield commensurate eigenvalues of the array and hence, periodic revivals of the input state. While, in general, polynomially complex, the inverse eigenvalue problem permits analytic solutions for small number of waveguides. We present exact solutions for arrays of up to nine waveguides and use them to design realistic buses for multi-(qu)bit and qudit transfer. Advantages and limitations of the proposed solution are discussed in the context of available fabrication techniques.
T2  - Annals of Physics
T1  - A new method for multi-bit and qudit transfer based on commensurate waveguide arrays
VL  - 392
SP  - 128
EP  - 141
DO  - 10.1016/j.aop.2018.03.008
ER  - 

@article{
author = "Petrović, Jovana S. and Veerman, J.J.P.",
year = "2018",
abstract = "The faithful state transfer is an important requirement in the construction of classical and quantum computers. While the highspeed transfer is realized by optical-fibre interconnects, its implementation in integrated optical circuits is affected by cross-talk. The cross-talk between densely packed optical waveguides limits the transfer fidelity and distorts the signal in each channel, thus severely impeding the parallel transfer of states such as classical registers, multiple qubits and qudits. Here, we leverage on the suitably engineered cross-talk between waveguides to achieve the parallel transfer on optical chip. Waveguide coupling coefficients are designed to yield commensurate eigenvalues of the array and hence, periodic revivals of the input state. While, in general, polynomially complex, the inverse eigenvalue problem permits analytic solutions for small number of waveguides. We present exact solutions for arrays of up to nine waveguides and use them to design realistic buses for multi-(qu)bit and qudit transfer. Advantages and limitations of the proposed solution are discussed in the context of available fabrication techniques.",
journal = "Annals of Physics",
title = "A new method for multi-bit and qudit transfer based on commensurate waveguide arrays",
volume = "392",
pages = "128-141",
doi = "10.1016/j.aop.2018.03.008"
}

Petrović, J. S.,& Veerman, J.J.P.. (2018). A new method for multi-bit and qudit transfer based on commensurate waveguide arrays. in Annals of Physics, 392, 128-141.
https://doi.org/10.1016/j.aop.2018.03.008

Petrović JS, Veerman J. A new method for multi-bit and qudit transfer based on commensurate waveguide arrays. in Annals of Physics. 2018;392:128-141.
doi:10.1016/j.aop.2018.03.008 .

Petrović, Jovana S., Veerman, J.J.P., "A new method for multi-bit and qudit transfer based on commensurate waveguide arrays" in Annals of Physics, 392 (2018):128-141,
https://doi.org/10.1016/j.aop.2018.03.008 . .