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Quasicrystals, a fascinating class of materials with long-range but nonperiodic order, have revolutionized our understanding of solid-state physics due to their unique properties at the crossroads of long-range-ordered and disordered…

量子气体 · 物理学 2024-01-24 Zhaoxuan Zhu , Shengjie Yu , Dean Johnstone , Laurent Sanchez-Palencia

The single electron spectrum and wavefunctions in quasicrystals continue to be a fascinating problem, with few known solutions, especially in two and higher dimensions. This paper investigates the energy spectra and gap structures in…

强关联电子 · 物理学 2025-07-01 Anuradha Jagannathan

Analytic and numerical results for quasiperiodic tight-binding models are reviewed, with emphasis on two and three-dimensional models which so far are beyond a mathematically rigorous treatment. In particular, we consider energy spectra of…

无序系统与神经网络 · 物理学 2007-05-23 Uwe Grimm , Michael Schreiber

We propose a scheme to determine the energy-band dispersion of quasicrystals which does not require any periodic approximation and which directly provides the correct structure of the extended Brillouin zones. In the gap labelling…

软凝聚态物质 · 物理学 2023-02-14 Jean-Marc Gambaudo , Patrizia Vignolo

We propose realization of non-Abelian topological superconductivity in two-dimensional quasicrystals by the same mechanism as in crystalline counterparts. Specifically, we study a two-dimensional electron gas in Penrose and Ammann-Beenker…

超导电性 · 物理学 2022-01-19 Rasoul Ghadimi , Takanori Sugimoto , K. Tanaka , Takami Tohyama

One of the key challenges in the field of high-temperature superconductivity is understanding the nature of fermionic quasiparticles. Experiments consistently demonstrate the existence of a second energy scale, distinct from the d-wave…

超导电性 · 物理学 2015-02-03 Emanuele G. Dalla Torre , Yang He , David Benjamin , Eugene Demler

We report on the study of a polariton gas confined in a quasi-periodic one dimensional cavity, described by a Fibonacci sequence. Imaging the polariton modes both in real and reciprocal space, we observe features characteristic of their…

Quasicrystals are long-range ordered and yet non-periodic. This interplay results in a wealth of intriguing physical phenomena, such as the inheritance of topological properties from higher dimensions, and the presence of non-trivial…

量子气体 · 物理学 2019-07-04 Konrad Viebahn , Matteo Sbroscia , Edward Carter , Jr-Chiun Yu , Ulrich Schneider

Quasicrystals lack translational symmetry, but can still exhibit long-ranged order, promoting them to candidates for unconventional physics beyond the paradigm of crystals. Here, we apply a real-space functional renormalization group…

强关联电子 · 物理学 2024-04-23 Jonas B. Profe , Carsten Honerkamp , Sebastian Achilles , Dante M. Kennes

We investigated two-dimensional magnonic structures which are the counterparts of photonic quasicrystals forming Penrose tiling. We considered the slab composed of Ni (or Py) disks embedded in Fe (or Co) matrix. The disks were arranged in…

介观与纳米尺度物理 · 物理学 2018-03-14 Justyna Rychły , Szymon Mieszczak , Jarosław W. Kłos

Two-dimensional semiconductors inside optical microcavities have emerged as a versatile platform to explore new hybrid light-matter quantum states. The strong light-matter coupling leads to the formation of exciton-polaritons, which in turn…

介观与纳米尺度物理 · 物理学 2021-11-05 Miguel Angel Bastarrachea-Magnani , Jannie Thomsen , Arturo Camacho-Guardian , Georg M. Bruun

Self-similar quasicrystals (like the famous Penrose and Ammann-Beenker tilings) are exceptional geometric structures in which long-range order, quasiperiodicity, non-crystallographic orientational symmetry, and discrete scale invariance are…

高能物理 - 理论 · 物理学 2026-02-13 Latham Boyle , Sotirios Mygdalas

Quasicrystals are nonperiodic structures having no translational symmetry but nonetheless possessing long-range order. The material properties of quasicrystals, particularly their low-temperature behavior, defy easy description. We present…

光学 · 物理学 2019-03-18 Theodore A. Corcovilos , Jahnavee Mittal

In increasing the capabilities of the optical and microwave techniques further into the subwavelength regime, quasistatic resonant structures has attracted considerable interest. Electromagnetic responses of electrostatic (ES) plasmon…

光学 · 物理学 2019-09-04 E. O. Kamenetskii

Quasicrystals possess long-range order but lack the translational symmetry of crystalline solids. In solid state physics, periodicity is one of the fundamental properties that prescribes the electronic band structure in crystals. In the…

介观与纳米尺度物理 · 物理学 2017-07-21 Laura C. Collins , Thomas G. Witte , Rochelle Silverman , David B. Green , Kenjiro K. Gomes

The photoconductivity spectra of NbS_3 (phase I) crystals are studied. A drop of photoconductivity corresponding to the Peierls gap edge is observed. Reproducible spectral features are found at energies smaller the energy gap value. The…

强关联电子 · 物理学 2011-02-23 V. F. Nasretdinova , S. V. Zaitsev-Zotov

The electronic spectrum of the Penrose rhombus quasicrystal exhibits a macroscopic fraction of exactly degenerate zero energy states. In contrast to other bipartite quasicrystals, such as the kite-and-dart one, these zero energy states…

强关联电子 · 物理学 2020-08-26 Ezra Day-Roberts , Rafael M. Fernandes , Alex Kamenev

The quasiparticle excitation is one of the most fundamental and ubiquitous physical observables in cuprate superconductors, carrying information about the bosonic glue forming electron pairs. Here the autocorrelation of the quasiparticle…

超导电性 · 物理学 2019-02-13 Deheng Gao , Yingping Mou , Yiqun Liu , Shuning Tan , Shiping Feng

Quasicrystal is now open to search for novel topological phenomena enhanced by its peculiar structure characterized by an irrational number and high-dimensional primitive vectors. Here we extend the concept of a topological insulator with…

量子气体 · 物理学 2022-12-02 Rasoul Ghadimi , Takanori Sugimoto , Takami Tohyama

The recent experimental advancement to realise ultracold gases scattering off an eight-fold optical potential [Phys. Rev. Lett. 122, 110404 (2019)] heralds the beginning of a new technique to study the properties of quasicrystalline…

量子气体 · 物理学 2019-11-18 Dean Johnstone , Patrik Öhberg , Callum W. Duncan
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