Topological Phononic Logic

Pirie, Harris; Sadhuka, Shuvom; Wang, Jennifer; Andrei, Radu; Hoffman, Jennifer

doi:10.1103/physrevlett.128.015501

Cited by 45 publications

(27 citation statements)

References 47 publications

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“…4 Building on previous work, we started from a monolayer phononic metamaterial designed to accurately emulate the Dirac cone in graphene 11,26,27 . The Dirac cone relies only on the C 6 symmetry of the unit cell, but it can be tweaked by adjusting specific material choices.…”

Section: Phononic Bilayer Graphenementioning

confidence: 99%

van der Waals metamaterials

et al. 2020

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Van der Waals heterostructures are a fertile frontier for discovering emergent phenomena in condensed matter systems. They are constructed by stacking elements of a large library of twodimensional materials, which couple together through van der Waals interactions. However, the number of possible combinations within this library is staggering, and fully exploring their potential is a daunting task. Here we introduce van der Waals metamaterials to rapidly prototype and screen their quantum counterparts. These layered metamaterials are designed to reshape the flow of ultrasound to mimic electron motion. In particular, we show how to construct analogues of all stacking configurations of bilayer and trilayer graphene through the use of interlayer membranes that emulate van der Waals interactions. By changing the membrane's density and thickness, we reach coupling regimes far beyond that of conventional graphene. We anticipate that van der Waals metamaterials will explore, extend, and inform future electronic devices. Equally, they allow the transfer of useful electronic behavior to acoustic systems, such as flat bands in magic-angle twisted bilayer graphene, which may aid the development of super-resolution ultrasound imagers.

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Section: Phononic Bilayer Graphenementioning

confidence: 99%

van der Waals metamaterials

et al. 2020

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“…BN or TMDs) can carry an angular momentum and sustain chiral modes, in the same way as electrons do. [20][21][22][23][24][25][26][27][28][29] Manipulating the properties of the lattice modes can provide thus an alternative and/or complementary scenario with promising perspectives for writing-in/reading-out quantum information.…”

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confidence: 99%

Strain-driven chiral phonons in two-dimensional hexagonal materials

Rostami,

Guinea,

Cappelluti

2022

Preprint

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“…For example, the simulated steelpillar lattice in Figure 1c 39 can be distorted from a trivial to a nontrivial topology for the prospect of engineering switchable acoustic waveguides. 33,39,40 Following the success of photonics and acoustics, the topological characterization of thermodynamic materials is expected to expand the frontiers of physical chemistry. Formal equivalences between the aforementioned topological band models and open systems at the thermodynamic limit are the subject of intense research.…”

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confidence: 99%

“…Interfaces joining different topological domains can be arbitrarily (re)configured into edge state waveguides, for logics or storage applications. For example, the simulated steel-pillar lattice in Figure c can be distorted from a trivial to a nontrivial topology for the prospect of engineering switchable acoustic waveguides. ,, Following the success of photonics and acoustics, the topological characterization of thermodynamic materials is expected to expand the frontiers of physical chemistry. Formal equivalences between the aforementioned topological band models and open systems at the thermodynamic limit are the subject of intense research. − Together with band topology, general topological notions are an important departure point for the exploration of nonlocal order in molecular systems and soft matter.…”

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confidence: 99%

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Topological Dynamic Matter

Palma

2020

J. Phys. Chem. Lett.

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The principles of topology in condensed matter physics have expanded to areas such as photonics, acoustics, electronics, and mechanics. Their extension to dynamic (soft) matter could enable the control and design of topological thermodynamic (micro)states and nonreciprocal dynamics, potentially leading to paradigmatic applications in molecular and thermal waveguiding, logics, and energy management. This Perspective explores distinct topological concepts for dynamic matter and prospective function. Topological tools are exemplified and discussed for the study of nonlocal order parameters or invariants in dynamic molecular matter, toward the engineering of assemblies, reactions, and system chemistry with unconventional global propertiesa scope which has the potential to push the frontiers of physical chemistry and transform chemical topology from form to function.

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Topological Phononic Logic

Cited by 45 publications

References 47 publications

van der Waals metamaterials

van der Waals metamaterials

Strain-driven chiral phonons in two-dimensional hexagonal materials

Topological Dynamic Matter

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