Experimental Realization of Nonreciprocal Adiabatic Transfer of Phonons in a Dynamically Modulated Nanomechanical Topological Insulator

Tian, Tian; Zhang, Yichuan; Zhang, Liang; Wu, Longhao; Sun, Liwei; Zhang, Jingwei; Duan, Chang‐Kui; Jiang, Jian‐Hua; Du, Jiangfeng

doi:10.1103/physrevlett.129.215901

Cited by 19 publications

(9 citation statements)

References 67 publications

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“…For example, a more robust and more fast protocol has been proposed recently. [62,63] The protocol can be realized by interfacing two SSH chains with different topological order, and thus is compatible with our theoretical model. Additionally, of particular interest is the potential that the driven Jaynes-Cumming ladder employed to simulate tight-binding lattices, such as SSH model, Rice-Mele model [64,65] and Creutz ladder lattice.…”

Section: Discussionsupporting

confidence: 56%

Topologically Protected Synthesizing of Fock States in a Circuit Quantum Electrodynamics Architecture

Xin,

Yu,

Zhou

et al. 2024

Physica Rapid Research Ltrs

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The preparation of Fock states is important for quantum information storage and processing. Here we present a two‐step protocol with topological protection for multi‐photon Fock states synthesizing in a circuit QED architecture. Due to photon number‐dependent vacuum Rabi splitting, the dynamics of the Jaynes‐Cummings ladder in the resonant regime can be equivalent to a spin‐1/2 chain while a multi‐frequency microwave pulse is applied. Based on the topologically assisted quantum state transfer technique, multi‐photon Fock states can be conditionally generated. Our method significantly reduces the complexity of experimental manipulation compared with previous multi‐step methods and is more robust as a result of topological protection. Furthermore, the protocol indicates that the circuit QED architecture could potentially provide a platform to explore the exotic phase in condensed matter.This article is protected by copyright. All rights reserved.

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Section: Discussionsupporting

confidence: 56%

Topologically Protected Synthesizing of Fock States in a Circuit Quantum Electrodynamics Architecture

Xin,

Yu,

Zhou

et al. 2024

Physica Rapid Research Ltrs

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“…Different mechanics have been used to realize topological edge mode pumping, like the incommensurate bilayer acoustic metamaterials [665], waveguide with dynamical boundary [666], and Landau-Zener transition between two coupled topological edge states [667]. Most recently, the adiabatic transport of coherent phonon is realized in a dynamically modulated nanomechanical system by exploiting three coupled topological modes [668]. Such work is valuable for phononic quantum information processing.…”

Section: Topological Pumpingmentioning

confidence: 99%

Topological phononic metamaterials

Zhu,

Deng,

Liu

et al. 2023

Rep. Prog. Phys.

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The concept of topological energy bands and their manifestations have been demonstrated in condensed matter systems as a fantastic paradigm toward unprecedented physical phenomena and properties that are robust against disorders. Recent years, this paradigm was extended to phononic metamaterials (including mechanical and acoustic metamaterials), giving rise to the discovery of remarkable phenomena that were not observed elsewhere thanks to the extraordinary controllability and tunability of phononic metamaterials as well as versatile measuring techniques. These phenomena include, but not limited to, topological negative refraction, topological `sasers' (i.e., the phononic analog of lasers), higher-order topological insulating states, non-Abelian topological phases, higher-order Weyl semimetal phases, Majorana-like modes in Dirac vortex structures and fragile topological phases with spectral flows. Here we review the developments in the field of topological phononic metamaterials from both theoretical and experimental perspectives with emphasis on the underlying physics principles. To give a broad view of topological phononics, we also discuss the synergy with non-Hermitian effects and cover topics including synthetic dimensions, artificial gauge fields, Floquet topological acoustics, bulk topological transport, topological pumping, and topological active matters as well as potential applications, materials fabrications and measurements of topological phononic metamaterials. Finally, we discuss the challenges, opportunities and future developments in this intriguing field and its potential impact on physics and materials science.

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“…Leveraging these insights from the quantum multi-level system, exotic phenomena emerge, such as Landau-Zener tunneling 6 – 10 and rapid adiabatic passage 11 , 12 . Adiabatic passage processes have been successfully applied for coherent control of multi-level systems 13 – 15 , even beyond the realm of quantum systems. The coupled waveguide system is a well-known platform for studying the evolution of multi-level systems in which the propagation direction replaces the role of time.…”

Section: Introductionmentioning

confidence: 99%

Robust temporal adiabatic passage with perfect frequency conversion between detuned acoustic cavities

Chen,

Peng,

Chen

et al. 2024

Nat Commun

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For classical waves, phase matching is vital for enabling efficient energy transfer in many scenarios, such as waveguide coupling and nonlinear optical frequency conversion. Here, we propose a temporal quasi-phase matching method and realize robust and complete acoustical energy transfer between arbitrarily detuned cavities. In a set of three cavities, A, B, and C, the time-varying coupling is established between adjacent elements. Analogy to the concept of stimulated Raman adiabatic passage, amplitudes of the two couplings are modulated as time-delayed Gaussian functions, and the couplings’ signs are periodically flipped to eliminate temporal phase mismatching. As a result, robust and complete acoustic energy transfer from A to C is achieved. The non-reciprocal frequency conversion properties of our design are demonstrated. Our research takes a pivotal step towards expanding wave steering through time-dependent modulations and is promising to extend the frequency conversion based on state evolution in various linear Hermitian systems to nonlinear and non-Hermitian regimes.

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Experimental Realization of Nonreciprocal Adiabatic Transfer of Phonons in a Dynamically Modulated Nanomechanical Topological Insulator

Cited by 19 publications

References 67 publications

Topologically Protected Synthesizing of Fock States in a Circuit Quantum Electrodynamics Architecture

Topologically Protected Synthesizing of Fock States in a Circuit Quantum Electrodynamics Architecture

Topological phononic metamaterials

Robust temporal adiabatic passage with perfect frequency conversion between detuned acoustic cavities

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