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By decreasing the transversal confinement potential in interacting one-dimensional spinless electrons and populating the second energetically lowest sub-band, for not too strong interactions system transitions into a quasi-one-dimensional…

强关联电子 · 物理学 2016-05-25 G. Sun , T. Vekua

Topological effects manifest in a wide range of physical systems, such as solid crystals, acoustic waves, photonic materials and cold atoms. These effects are characterized by `topological invariants' which are typically integer-valued, and…

光学 · 物理学 2024-03-12 Sashank Kaushik Sridhar , Sayan Ghosh , Avik Dutt

We present a tunable, non-equilibrium oil-in-oil emulsion that serves as a model system for investigating the transition from controlled droplet deformation to multiscale flows reminiscent of turbulence. By utilizing a miscible mixture of…

软凝聚态物质 · 物理学 2026-04-22 Majid Bahraminasr , Anand Yethiraj

We demonstrate theoretically that electric field can drive a quantum phase transition between band insulator to topological insulator in CdTe/HgCdTe/CdTe quantum wells. The numerical results suggest that the electric field could be used as…

介观与纳米尺度物理 · 物理学 2015-05-14 Jun Li , Kai Chang

In recent years, various classes of systems were proposed to realize topological states of matter. One of them are multiterminal Josephson junctions where topological Andreev bound states are constructed in the synthetic space of…

介观与纳米尺度物理 · 物理学 2023-11-29 Lev Teshler , Hannes Weisbrich , Jonathan Sturm , Raffael L. Klees , Gianluca Rastelli , Wolfgang Belzig

Topology manifesting in many branches of physics deepens our understanding on state of matters. Topological photonics has recently become a rapidly growing field since artificial photonic structures can be well designed and constructed to…

量子物理 · 物理学 2019-05-22 Yao Wang , Yong-Heng Lu , Feng Mei , Jun Gao , Zhan-Ming Li , Hao Tang , Shi-Liang Zhu , Suotang Jia , Xian-Min Jin

Integrating power electronics with batteries can offer many advantages, including load sharing and balancing with parallel connectivity. However, parallel batteries with differing voltages and power profiles can cause large circulating…

系统与控制 · 电气工程与系统科学 2024-12-25 Pouyan Pourhadi , Nima Tashakor , Mahdi Bayati , Stefan Goetz

The discovery of the fractional quantum Hall effect in GaAs-based semiconductor devices has lead to new advances in condensed matter physics, in particular the possibility for exotic, topological phases of matter that possess fractional,…

介观与纳米尺度物理 · 物理学 2015-06-05 Z. Papic , D. A. Abanin , Y. Barlas , R. N. Bhatt

Using a model of idealized, crossed one-dimensional quantum wires we construct a novel model for a single electron on tunneling-coupled systems of one-dimensional quantum rings. We explore and find that topology can affect the energetics of…

介观与纳米尺度物理 · 物理学 2020-07-07 Colin Riggert , Kieran Mullen

The coupling between two or more objects can generally be categorized as strong or weak. In cavity quantum electrodynamics for example, when the coupling strength is larger than the loss rate the coupling is termed strong, and otherwise it…

量子物理 · 物理学 2022-07-12 C. A. Downing , A. J. Toghill

Hall tube with a tunable flux is an important geometry for studying quantum Hall physics, but its experimental realization in real space is still challenging. Here, we propose to realize a synthetic Hall tube with tunable flux in a…

量子气体 · 物理学 2021-02-12 Xi-Wang Luo , Jing Zhang , Chuanwei Zhang

Light-induced quantum phases offer the potential for simple and powerful tuning of material properties. For example, simply illuminating 2D materials in the integer quantum Hall regime with polarized light is predicted to drive quantum…

量子气体 · 物理学 2025-12-09 Yifei Bai , Anna R. Dardia , Toshihiko Shimasaki , David M. Weld

On-demand, switchable phase transitions between topologically non-trivial and trivial photonic states are demonstrated. Specifically, it is shown that integration of a 2D array of coupled ring resonators within a thermal heater array…

Topological defects are ubiquitous from solid state physics to cosmology, where they drive phase transitions by proliferating as domain walls, monopoles or vortices. As quantum excitations, they often display fractional charge and anyonic…

介观与纳米尺度物理 · 物理学 2012-03-27 R. Koushik , Matthias Baenninger , Vijay Narayan , Subroto Mukerjee , Michael Pepper , Ian Farrer , David A. Ritchie , Arindam Ghosh

Turbulence is ubiquitous in astrophysical fluids such as the interstellar medium (ISM) and the intracluster medium (ICM). In turbulence studies, it is customary to assume that fluid is driven on a single scale. However, in astrophysical…

星系天体物理 · 物理学 2015-06-18 Hyunju Yoo , Jungyeon Cho

The discovery of quantum spin Hall materials with huge bulk gaps in experiment, such as bismuthene, provides a versatile platform for topological devices. We propose a topological quantum dot (QD) device in bismuthene ribbon in which two…

介观与纳米尺度物理 · 物理学 2019-05-22 Jiaojiao Zhou , Tong Zhou , Shu-guang Cheng , Hua Jiang , Zhongqin Yang

We consider a quantum topological frequency converter, realized by coupling a qubit to two slow harmonic modes. The dynamics of such a system is the quantum analog of topological pumping. Our quantum mechanical description shows that an…

量子物理 · 物理学 2024-10-15 Jacquelin Luneau , Benoît Douçot , David Carpentier

A photonic Floquet topological insulator has previously been experimentally realized in an array of evanescently-coupled helical waveguides. In the topological regime probed by that experiment, the chirality of the single topological edge…

光学 · 物理学 2018-04-04 Jonathan Guglielmon , Sheng Huang , Kevin P. Chen , Mikael C. Rechtsman

The surface bound electronic states of three-dimensional topological insulators, as well as the edge states in two-dimensional topological insulators, are investigated in the presence of a circularly polarized light. The strong coupling…

介观与纳米尺度物理 · 物理学 2015-06-05 Andrii Iurov , Godfrey Gumbs , Oleksiy Roslyak , Danhong Huang

We engineer quantum anomalous Hall effect in silicene via doping 3d transition metals. We show that there exists a stable quantum anomalous Hall effect in Vanadium doped silicene using both analytical model and Wannier interpolation. We…

介观与纳米尺度物理 · 物理学 2013-10-30 Xiao-Long Zhang , Lan-Feng Liu , Wu-Ming Liu