A new method for multi-bit and qudit transfer based on commensurate waveguide arrays
Само за регистроване кориснике
2018
Чланак у часопису (Објављена верзија)
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© 2018 Elsevier Inc.
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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.
Кључне речи:
waveguide arrays / linear coupling / commensurability / coherent state transferИзвор:
Annals of Physics, 2018, 392, 128-141Финансирање / пројекти:
- Фотоника микро и нано структурних материјала (RS-45010)
- European Union’s Seventh Framework Program (FP7-REGPOT-2012-2013-1, grant no. 316165)
DOI: 10.1016/j.aop.2018.03.008
ISSN: 0003-4916; 1096-035X
WoS: 000431941500008
Scopus: 2-s2.0-85044125182
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Институција/група
VinčaTY - 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 . .