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Superconducting systems may display different types of nonequilibrium states depending on the specific constraints imposed for measurement. We probe current-voltage relations of three-dimensional superconducting films by allowing finite…

超导电性 · 物理学 2026-01-27 Shamashis Sengupta

This article presents a new phase-field formulation for non-equilibrium interface conditions in rapid phase transformations. With a particular way of defining concentration fields, the classical sharp and diffuse (thick) interface theories…

材料科学 · 物理学 2023-04-03 Yue Li , Lei Wang , Junjie Li , Jincheng Wang , Zhijun Wang

Interface disorder and its effect on the valley degeneracy of the conduction band edge remains among the greatest theoretical challenges for understanding the operation of spin qubits in silicon. Here, we investigate a counterintuitive…

介观与纳米尺度物理 · 物理学 2011-02-15 A. L. Saraiva , Belita Koiller , Mark Friesen

In this paper, we study weakly interacting diffusion processes on random graphs. Our main focus is on the properties of the mean-field limit and, in particular, on the nonuniqueness and bifurcation structure of stationary states. By…

动力系统 · 数学 2025-11-03 Benedetta Bertoli , Grigorios A. Pavliotis , Niccolò Zagli

Electronic localization in narrow graphene constrictions is theoretically studied, and it is found that long-lived quasibound states (QBSs) can exist in a class of ultrashort graphene quantum point contacts (QPCs). These QBSs are shown to…

介观与纳米尺度物理 · 物理学 2014-12-05 Hai-Yao Deng , Katsunori Wakabayashi , Chi-Hang Lam

We consider heterostructures obtained by stacking layers of two s-wave superconductors with significantly different coupling strengths, respectively in the weak- and strong-coupling regimes. The weak- and strong-coupling superconductors are…

超导电性 · 物理学 2021-03-31 Giacomo Mazza , Adriano Amaricci , Massimo Capone

Simulated sliding between an oxidized silicon tip and surface over six decades of velocity using accelerated molecular dynamics reproduces the experimentally observed velocity dependence of the friction force. Unlike in the crystalline…

材料科学 · 物理学 2013-05-29 Woo Kyun Kim , Michael L. Falk

We present a microscopic study of the behavior of the order parameters near boundaries of a two-band superconducting material, described by the standard tight-binding Bardeen-Cooper-Schrieffer model. We find superconducting surface states.…

超导电性 · 物理学 2021-04-21 Andrea Benfenati , Albert Samoilenka , Egor Babaev

Supersolidity, combining superfluid and crystalline orders, has been realized in dipolar Bose-Einstein condensates by tuning interatomic interactions. Here we show that supersolidity can also emerge from mode coupling at a superfluid-solid…

量子气体 · 物理学 2025-12-10 Baptiste Coquinot , Ragheed Alhyder , Alberto Cappellaro , Mikhail Lemeshko

Abstract. The present work considers a change in the momentum under the transfer of a solution through the interface. It is shown that pressure related to the partial volumes of components arises in a solution under diffusion. As a result,…

统计力学 · 物理学 2021-02-16 Alex Guskov

We study the properties of edge states in in-plane heterostructures made of adjacent zigzag graphene and BN ribbons. While in pure zigzag graphene nanoribbons, gapless edge states are nearly flat and cannot contribute significantly to the…

介观与纳米尺度物理 · 物理学 2015-03-19 Van Truong Tran , Jérôme Saint-Martin , Philippe Dollfus

We consider two-dimensional superconductor/ferromagnet/superconductor junctions and investigate the subgap modes along the junction interface. The subgap modes exhibit characteristics similar to the Yu-Shiba-Rusinov states that originate…

超导电性 · 物理学 2023-03-29 Yinan Fang , Seungju Han , Stefano Chesi , Mahn-Soo Choi

We study the interplay between two nontrivial boundary effects: (1) the two dimensional ($2d$) edge states of three dimensional ($3d$) strongly interacting bosonic symmetry protected topological states, and (2) the boundary fluctuations of…

强关联电子 · 物理学 2020-05-20 Yichen Xu , Xiao-Chuan Wu , Chao-Ming Jian , Cenke Xu

A topological boundary can be formed at the interface between a trivial and a topological insulator. The difference in the topological index across the junction leads to robust gapless surface states. Optical studies of these states are…

介观与纳米尺度物理 · 物理学 2018-08-29 A. Diaz-Fernandez , N. del Valle , E. Diaz , F. Dominguez-Adame

Density waves were studied in a phase-separated binary complex plasma under microgravity conditions. For the big particles, waves were self-excited by the two-stream instability, while for small particles, they were excited by heartbeat…

We discuss bound states appearing at the interface between two different superconductors characterized by different nontrivial topological numbers such as one-dimensional winding numbers and Chern numbers. The one-dimensional winding number…

超导电性 · 物理学 2014-07-10 Jeongmin Yoo , Tetsuro Habe , Yasuhiro Asano

We develop a theory of a pseudogap state appearing near the superconductor-insulator transition in strongly disordered metals with attractive interaction. We show that such an interaction combined with the fractal nature of the single…

超导电性 · 物理学 2007-05-23 Michael V. Feigel'man , Lev B. Ioffe , Emil A. Yuzbashyan

The edge states in the hybrid system of single-layer and double-layer graphene are studied in the tight-binding model theoretically. The edge states in one side of the interface between single-layer and double-layer graphene are shown to…

介观与纳米尺度物理 · 物理学 2012-04-03 Yasumasa Hasegawa , Mahito Kohmoto

Mobile holes in an antiferromagnetic insulator form a slowly fluctuating array of quasi one-dimensional metallic stripes, which induce a spin gap or pseudogap in the intervening Mott-insulating regions. The mobile holes on an individual…

凝聚态物理 · 物理学 2009-10-30 V. J. Emery , S. A. Kivelson , O. Zachar

Interfaces in two-dimensional systems exhibit unexpected complex dynamical behaviors, the dynamics of a border connecting a stripe pattern and a uniform state is studied. Numerical simulations of a prototype isotropic model, the subcritical…

斑图形成与孤子 · 物理学 2008-06-05 Marcel G. Clerc , Daniel Escaff , Rene Rojas