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We present a careful and thorough microscopic derivation of the Kondo Hamiltonian for single-molecule magnets (SMMs) transistors. When the molecule is strongly coupled to metallic leads, we show that by applying a transverse magnetic field…

强关联电子 · 物理学 2009-11-13 Gabriel Gonzalez , Michael N. Leuenberger , Eduardo R. Mucciolo

Using Majorana Fermions to represent spins we re-examine the Kondo Lattice model for heavy fermions. The simplest decoupling procedure provides a realization of odd frequency superconductivity, with resonant pairing and surfaces of gap…

凝聚态物理 · 物理学 2009-10-22 P. Coleman , E. Miranda , A. Tsvelik

The experimental realization of Majorana fermions presents an important problem due to their non-Abelian nature and potential exploitation for topological quantum computation. Very recently Sau et al. [arXiv:0907.2239] demonstrated that a…

强关联电子 · 物理学 2013-05-29 Jason Alicea

We investigate the topological phase diagram of {an extension of the Haldane model with equal spin pairing superconductivity}. In two dimensions, we find a topological nodal superconducting phase, which exhibits a chiral Majorana mode…

介观与纳米尺度物理 · 物理学 2026-04-21 Simone Traverso , Niccolò Traverso Ziani , Maura Sassetti , Fernando Dominguez

Quantum spin liquids hosting Majorana excitations have recently experienced renewed interest for potential applications to topological quantum computation. Performing logical operations with reduced poisoning requires to localize such…

强关联电子 · 物理学 2022-01-05 Haoran Wang , Alessandro Principi

We consider a two-dimensional monolayer MoS2-based Josephson junction which is composed by an intermediate semiconductor flake and the semi-infinite topological and non-topological superconductor leads and study its quantum transport…

超导电性 · 物理学 2025-07-01 Hamidreza Simchi

We propose an optical approach to monitor superconductors in conjunction with a normal metal layer. Effectively such a hybrid system represents a resonator, where electrons are strongly coupled with light. We show that the interaction of…

超导电性 · 物理学 2018-08-15 K. H. A. Villegas , V. M. Kovalev , F. V. Kusmartsev , I. G. Savenko

We investigate the collisions of Majorana zero modes, which are presented as inter-soliton collisional events in fermionic superfluids with spin-orbit coupling. Our results demonstrate that, the zero energy splitting, induced by the…

量子气体 · 物理学 2023-12-27 Liang-Liang Wang , Wenjun Shao , Jian Li

Chiral Majorana-fermion modes are shown to emerge as edge excitations in a superconductor--topological-insulator hybrid structure that is subject to a magnetic field. The velocity of this mode is tunable by changing the magnetic-field…

介观与纳米尺度物理 · 物理学 2014-02-19 Rakesh P. Tiwari , U. Zülicke , C. Bruder

We study the localization and oscillation properties of the Majorana fermions that arise in a two-dimensional electron gas (2DEG) with spin-orbit coupling (SOC) and a Zeeman field coupled with a d-wave superconductor. Despite the angular…

超导电性 · 物理学 2018-02-21 Laura Ortiz , Santiago Varona , Oscar Viyuela , Miguel Angel Martin-Delgado

Strongly correlated systems exhibit a rich phenomenology due to the antagonism of a diversity of ordered phases. The aftermath of this interplay can lead to a coexistence which takes place at a microscopic level, or, a phase separation in…

超导电性 · 物理学 2018-10-15 Maria Teresa Mercaldo , Panagiotis Kotetes , Mario Cuoco

An interplay between pairing and topological orders has been predicted to give rise to superconducting states supporting exotic emergent particles, such as Majorana particles obeying non-Abelian braid statistics. We consider a system of…

超导电性 · 物理学 2022-08-10 Jonathan Schirmer , C. -X. Liu , J. K. Jain

We present a comprehensive theoretical analysis of the spin-dependent thermoelectric properties of a double quantum dot system coupled to a topological superconducting nanowire and ferromagnetic leads. The study focuses on the behavior of…

介观与纳米尺度物理 · 物理学 2025-09-18 Piotr Majek , Ireneusz Weymann

Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superfluids, Cooper pairings with finite momentum, and Majorana fermions (MFs), quasiparticles with non-Abelian exchange statistics, are two topics under intensive investigation in the past several…

量子气体 · 物理学 2015-06-23 Zhen Zheng , Chunlei Qu , Xubo Zou , Chuanwei Zhang

Spin chains proximitized with superconducting condensates have emerged as one of the most promising platforms for the realization of Majorana modes. Here, we craft diluted spin chains atom-by-atom following seminal theoretical proposal…

A topological superconducting wire with an effective time reversal symmetry is known to have a $\mathbb{Z}_8$ topological classification in the presence of interactions. The topological index $|n| \le 4$ counts the number of Majorana end…

介观与纳米尺度物理 · 物理学 2016-04-27 Dganit Meidan , Alessandro Romito , Piet W. Brouwer

A mechanism of superconductivity is proposed for the Kondo lattice which has semi-metallic conduction bands with electron and hole Fermi surfaces. At high temperatures, the $f$ electron's localized spins/pseudospins are fluctuating between…

超导电性 · 物理学 2019-10-09 Shoma Iimura , Motoaki Hirayama , Shintaro Hoshino

Recently, superconductors with higher-order topology have stimulated extensive attention and research interest. Higher-order topological superconductors exhibit unconventional bulk-boundary correspondence, thus allow exotic…

介观与纳米尺度物理 · 物理学 2023-10-02 Xiao-Ting Chen , Chun-Hui Liu , Dong-Hui Xu , Chui-Zhen Chen

By analytically solving the Bogoliubov-de Gennes equations we study the fermion bound states at the center of the core of a vortex in a two-dimensional superconductor. We consider three kinds of 2D superconducting models: (a) a standard…

超导电性 · 物理学 2020-11-11 Haoyun Deng , Nicholas Bonesteel , Pedro Schlottmann

Majorana fermions were proposed to occur at edges and interfaces of gapped one-dimensional systems where phases with different topological character meet due to an interplay of spin-orbit coupling, proximity-induced superconductivity and…

强关联电子 · 物理学 2013-05-29 Eran Sela , Alexander Altland , Achim Rosch