Resilient quantum gates on periodically driven Rydberg atoms

Wu, Jin‐Lei; Wang, Yan; Han, Jianchao; Su, Shi‐Lei; Xia, Yan; Jiang, Yongyuan; Song, Jie

doi:10.1103/physreva.103.012601

Cited by 39 publications

(25 citation statements)

References 63 publications

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“…Our scheme has some analogy with the fidelity increase obtained in quantum gates via Rydberg interactions by driving simultaneously the control and target qubits as examined in [6,38]. It will be interesting to explore the application of our compensation to quantum gates [8,48,49]. The scheme could also be extended to more elaborated STIRAP protocols, as that recently introduced in [13] for artificial atoms.…”

Section: Discussionmentioning

confidence: 93%

Atomic interactions for qubit-error compensations

Delvecchio,

Petiziol,

Arimondo

et al. 2021

Preprint

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Experimentalimperfections induce phase and population errors in quantum systems. We present a method to compensate unitary phase errors affecting also the population of the qubit states. This is achieved through the interaction of the target qubit with an additional control qubit. We show that our approach can be applied to two and three-level qubit implementations with comparable compensation efficiency.

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Section: Discussionmentioning

confidence: 93%

Atomic interactions for qubit-error compensations

Delvecchio,

Petiziol,

Arimondo

et al. 2021

Preprint

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“…It is worth mentioning that similar energy-level structures can also be found in trapped ions [59], diamond nitrogen-vacancy centers [60], and superconducting circuits [61][62][63][64][65][66]. In addition, some complicated quantum systems, such as the electrons in semiconductors [67], the spin chain [68,69], neutral atoms interactions [70][71][72][73][74][75], and massive quantum particles in an optical Lieb lattice [76], can be reduced to the three-level physical model as well. Assume that the system is initially in the ground state |g .…”

Section: Toy Model and The General Theorymentioning

confidence: 89%

Composite pulses for high fidelity population transfer in three-level systems

Shi,

Zhang,

Ran

et al. 2022

Preprint

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“…An identical process can be performed again to transfer the population from |r⟩ t back to |B⟩ t . In addition to optimal control for engineering pulses, other techniques may also be efficient to enhance gate robustness even with a constant Rabi frequency, for example Landau-Zener-Stückelberg interferometry [126,127]. For the energy relaxation, an additional ground state |2⟩ is introduced to denote those Zeeman magnetic sublevels out of the computational states |0⟩ and |1⟩.…”

Section: Appendix B: Two-photon Rydberg Pumpingmentioning

confidence: 99%

Systematic-Error-Tolerant Multiqubit Holonomic Entangling Gates

Wang

Han

et al. 2021

Phys. Rev. Applied

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Quantum holonomic gates hold built-in resilience to local noises and provide a promising approach for implementing fault-tolerant quantum computation. We propose to realize high-fidelity holonomic (N + 1)-qubit controlled gates using Rydberg atoms confined in optical arrays or superconducting circuits. We identify the scheme, deduce the effective multi-body Hamiltonian, and determine the working condition of the multiqubit gate. Uniquely, the multiqubit gate is immune to systematic errors, i.e., laser parameter fluctuations and motional dephasing, as the N control atoms largely remain in the much stable qubit space during the operation. We show that CN -NOT gates can reach same level of fidelity at a given gate time for N ≤ 5 under a suitable choice of parameters, and the gate tolerance against errors in systematic parameters can be further enhanced through optimal pulse engineering. In case of Rydberg atoms, the proposed protocol is intrinsically different from typical schemes based on Rydberg blockade or antiblockade. Our study paves a new route to build robust multiqubit gates with Rydberg atoms trapped in optical arrays or with superconducting circuits. It contributes to current efforts in developing scalable quantum computation with trapped atoms and fabricable superconducting devices.

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Resilient quantum gates on periodically driven Rydberg atoms

Cited by 39 publications

References 63 publications

Atomic interactions for qubit-error compensations

Atomic interactions for qubit-error compensations

Composite pulses for high fidelity population transfer in three-level systems

Systematic-Error-Tolerant Multiqubit Holonomic Entangling Gates

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