High Fidelity and Fast Population Transfer in a System of Interacting Two-Level Particles via Optimal Control

Guo, Yu

doi:10.1007/s10773-018-3899-8

Cited by 2 publications

(2 citation statements)

References 32 publications

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“…[18,19] By formulating the population transfer problem within an optimal control framework, quantum optimal control theory offers a powerful tool for finding optimal control strategies that maximize transfer efficiency while including constraints on the control fields. [20][21][22][23][24][25][26][27][28][29] In practical applications, it is vital to develop robust quantum control strategies that account for uncertainties and disturbances arising from fluctuations in control field parameters or environmental noise sources. However, ensuring the effectiveness and reliability of population transfer in quantum systems remains challenging, as it requires designing optimal control fields capable of overcoming such uncertainties.…”

Section: Introductionmentioning

confidence: 99%

Optimal and robust control of population transfer in asymmetric quantum-dot molecules

Guo 郭,

Ma 马,

Shu 束

2024

Chinese Phys. B

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We present an optimal and robust quantum control method for efficient population transfer in asymmetric double quantum dot molecules. We derive a long-duration control scheme that allows for highly efficient population transfer by accurately controlling the amplitude of a narrow-bandwidth pulse. To overcome fluctuations in control field parameters, we employ a frequency-domain quantum optimal control theory method to optimize the spectral phase of a single pulse with broad bandwidth while preserving the spectral amplitude. We show that this spectral-phase-only optimization approach can successfully identify robust and optimal control fields, leading to efficient population transfer to the target state while concurrently suppressing population transfer to undesired states. The method demonstrates resilience to fluctuations in control field parameters, making it a promising approach for reliable and efficient population transfer in practical applications.

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Section: Introductionmentioning

confidence: 99%

Optimal and robust control of population transfer in asymmetric quantum-dot molecules

Guo 郭,

Ma 马,

Shu 束

2024

Chinese Phys. B

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“…Apart from the environment-induced decoherence effects, the operation deviations of control parameters, behaving as inevitable error sources, are directly detrimental to robust operations in quantum information processing. To suppress the effect of control errors, some novel schemes have been proposed [21][22][23][24][25][26][27][28][29]. Among them, methods that combine STA ideas with optimal control have proved to be very robust and flexible [25][26][27][28][29], which could make transfer operations insensitive to imperfect calibrations of control parameters.…”

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confidence: 99%

Error-insensitive population transfer in a qutrit by invariant-based shortcuts with optimized drivings

Feng

2019

EPL

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We develop an effective scheme for implementing error-insensitive population transfer in a three-level system (qutrit) by invariant-based shortcuts with optimized drivings. Based on the method of inverse engineering, target population transfers can be performed in a shortcut manner. Taking into account the deviation errors and then optimizing the coherent drivings, we can improve the target population transfers to be insensitive to deviations of frequency detuning or Rabi coupling. Particularly, with an appropriate choice of coherent drivings, our scheme could be insensitive to these two kinds of errors simultaneously. As one of the potential applications, our scheme may remove the control errors of quantum operations on superconducting artificial atoms. By combining shortcuts to adiabaticity with optimal control, the protocol could offer a promising avenue to explore fast and robust quantum information processing experimentally.

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High Fidelity and Fast Population Transfer in a System of Interacting Two-Level Particles via Optimal Control

Cited by 2 publications

References 32 publications

Optimal and robust control of population transfer in asymmetric quantum-dot molecules

Optimal and robust control of population transfer in asymmetric quantum-dot molecules

Error-insensitive population transfer in a qutrit by invariant-based shortcuts with optimized drivings

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