Concatenated open-loop control for higher-order photon polarization qubit decoherence

Damodarakurup, S.; Alif, B.; Bhadranandan, C.; Ulahannan, J.P.; Soorat, R.

doi:10.1007/s12648-024-03112-8

Concatenated open-loop control for higher-order photon polarization qubit decoherence

S. Damodarakurup
(
- Unlisted, IN
)
,
B. Alif
(
- Unlisted, IN
)
,
C. Bhadranandan
(
- Unlisted, IN
)
,
J.P. Ulahannan
(
- Unlisted, IN
)
,
R. Soorat
(
- Indian Inst. Tech., Hyderabad
)

Feb 29, 2024

10 pages

Published in:

Indian J.Phys. 98 (2024) 10, 3689-3698

Published: Feb 29, 2024

DOI:

10.1007/s12648-024-03112-8

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Abstract: (Springer)

Qubit realized via photon polarization is a promising candidate for quantum information processing applications. Polarization decoherence mediated by a birefringent environment destroys the coherence in such qubits. Open-loop dynamical decoupling schemes are found to be good to control these kinds of decoherence. But simple open-loop control strategies are not effective to control higher-order decoherence. In the study, the effectiveness of concatenated dynamical decoupling schemes in controlling decoherence in photon polarization qubits was investigated. The propagation of different optical qubits in a birefringent channel environment was modeled, and numerical methods were used to compare the effectiveness of periodic dynamic decoupling (PDD) schemes with concatenated dynamical decoupling (CDD) schemes. The results showed that the CDD schemes were superior to PDD schemes in controlling the tested decoherence.

Polarization qubit decoherence
Open-loop dynamical decoupling
Periodic dynamical decoupling
Concatenated dynamical decoupling

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Figures(0)

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