Observation of Non-Markovian Spin Dynamics in a Jaynes-Cummings-Hubbard Model Using a Trapped-Ion Quantum Simulator

Li, B. -W.; Mei, Quanxin; Wu, Yukai; Cai, Meihan; Wang, Yaogong; Yao, Liqiang; Zhou, Z.-C.; Duan, L.-M.

doi:10.1103/physrevlett.129.140501

Cited by 20 publications

(3 citation statements)

References 81 publications

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“…One of the more feasible schemes is to expand bits numbers by coupling both the internal states and motional states of ions, which is also called phonon state manipulation in the ion trap [15][16][17][18][19]. Such scheme can be used to create entanglement between ions [20][21][22][23][24][25], to implement quantum gates [26][27][28][29], and to simulate the behavior of complex quantum systems [30][31][32]. Moreover, phonon modes have been engineered to realize different properties, such as localization, squeezing, and non-classicality [15,16,20].…”

Section: Introductionmentioning

confidence: 99%

Manipulation of phonon states in ion traps by shortcuts to adiabaticity

Yang,

Xie,

Zhang

et al. 2023

New J. Phys.

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Shortcuts to adiabaticity (STA) provides the possibility of high accuracy manipulation of phonon states in ion traps. We propose a scheme realized experimentally for manipulating phonon states using STA and confirmed its effectiveness through generating Fock states. Our results show that the duration of the STA manipulation of phonon states is 16 times faster than that of the adiabatic evolution, and the non-resonant excitation can be suppressed by laser bias frequency, which are confirmed by experimental results. Moreover, we also carried out an experimental research on the robustness of STA, showing good robustness respect to the pulse shape deformation, bias noises and stochastic noise. This might lead to a useful step toward realizing fast and noise-resistant quantum manipulation within current experimental capacity.

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Section: Introductionmentioning

confidence: 99%

Manipulation of phonon states in ion traps by shortcuts to adiabaticity

Yang,

Xie,

Zhang

et al. 2023

New J. Phys.

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“…Recently, non-Markovian dynamics have become an area of active research both in theory and experiment, driven by the wide interest in quantum technologies [23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Tunable Non-Markovianity for Bosonic Quantum Memristors

Tang

Barrios²,

Solano³

et al. 2023

Entropy

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We studied the tunable control of the non-Markovianity of a bosonic mode due to its coupling to a set of auxiliary qubits, both embedded in a thermal reservoir. Specifically, we considered a single cavity mode coupled to auxiliary qubits described by the Tavis–Cummings model. As a figure of merit, we define the dynamical non-Markovianity as the tendency of a system to return to its initial state, instead of evolving monotonically to its steady state. We studied how this dynamical non-Markovianity can be manipulated in terms of the qubit frequency. We found that the control of the auxiliary systems affects the cavity dynamics as an effective time-dependent decay rate. Finally, we show how this tunable time-dependent decay rate can be tuned to engineer bosonic quantum memristors, involving memory effects that are fundamental for developing neuromorphic quantum technologies.

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“…The reservoir's memory effect is characterized by the extent to which the lost entanglement can be revived. Based on these measures, the non-Markovian effects have been experimentally explored in different systems, including photonic qubits [11][12][13], nitrogen-vacancy centers [14][15][16], and ion traps [17]. Recently, Gaikwad et al explored the crossover between the Markovian and non-Markovian dynamics with a superconducting processor [18], where the entanglement between a test qubit and an ancilla is used as a measure to quantify the non-Markovianity of the environment of the test qubit, comprised of a third qubit and its readout resonator.…”

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confidence: 99%

Characterization of non-Markovianity with maximal extractable qubit-reservoir entanglement

Yang,

Han,

et al. 2024

Preprint

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Understanding the dynamical behavior of a qubit in a reservoir is critical to applications in quantum technological protocols, ranging from quantum computation to quantum metrology. The effect of the reservoir depends on reservoir’s spectral structure, as well as on the qubit-reservoir coupling strength. We here propose a measure for quantifying the non-Markovian effect of a reservoir with a Lorentzian spectrum, based on the maximum qubit-reservoir quantum entanglement that can be extracted. Numerical simulation shows this entanglement exhibits a monotonous behavior in response to the variation of the coupling strength. We confirm the validity of this measure with an experiment, where a superconducting qubit is controllably coupled to a lossy resonator, which acts as a reservoir for the qubit. The experimental results illustrate the maximal extractable entanglement is progressively increased with the strengthening of the non-Markovianity.

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Observation of Non-Markovian Spin Dynamics in a Jaynes-Cummings-Hubbard Model Using a Trapped-Ion Quantum Simulator

Cited by 20 publications

References 81 publications

Manipulation of phonon states in ion traps by shortcuts to adiabaticity

Manipulation of phonon states in ion traps by shortcuts to adiabaticity

Tunable Non-Markovianity for Bosonic Quantum Memristors

Characterization of non-Markovianity with maximal extractable qubit-reservoir entanglement

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