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Making use of the Bogoliubov-de Gennes equation for the d-wave superconductors, we investigate the quasi-particle spectrum around a single vortex. Taking $p_F\xi=10$, we found that there are bound states which are localized around the…

超导电性 · 物理学 2009-10-31 Masaru Kato , Kazumi Maki

The distinctive features of the electronic structure of vortex states in superconducting graphene are studied within the Bogolubov-de Gennes theory applied to excitations near the Dirac point. We suggest a scenario describing the subgap…

超导电性 · 物理学 2011-09-15 I. M. Khaymovich , N. B. Kopnin , A. S. Mel'nikov , I. A. Shereshevskii

The structure of an isolated vortex in a dilute two-component neutral superfluid Fermi gas is studied within the context of self-consistent Bogoliubov-de Gennes theory. Various thermodynamic properties are calculated and the shift in the…

软凝聚态物质 · 物理学 2007-05-23 N. Nygaard , G. M. Bruun , B. I. Schneider , C. W. Clark , D. L. Feder

A microscopic, quantum mechanical model for neutron vortices in the crust of a neutron star is presented. After a brief introduction to the Bogoliubov- de Gennes equations, which form the basis for our calculations, we present results for…

天体物理学 · 物理学 2009-11-06 O. Elgaroy , F. V. De Blasio

The origin of the vortex-core states in s-wave and d_{x^2-y^2}-wave superconductors is investigated by means of some selected numerical experiments. By relaxing the self-consistency condition in the Bogoliubov-de Gennes equations and tuning…

超导电性 · 物理学 2007-05-23 C. Berthod

We investigate the behavior of vortex bound states in the quantum limit by self-consistently solving the Bogoliubov-de Gennes equation. We find that the energies of the vortex bound states deviates from the analytical result…

超导电性 · 物理学 2022-03-08 Xinwei Fan , Xiaoyu Chen , Huan Yang , Hai-Hu Wen

The vortex structure in superconducting stripe states is studied according to the Bogoliubov-de Gennes theory on the two-dimensional Hubbard model with nearest-neighbor sites pairing interaction. The vortex is trapped at the outside region…

超导电性 · 物理学 2009-10-31 Masanori Ichioka , Mitsuaki Takigawa , Kazushige Machida

The microscopic properties of a single vortex in a dilute superfluid Fermi gas at zero temperature are examined within the framework of self-consistent Bogoliubov-de Gennes theory. Using only physical parameters as input, we study the pair…

软凝聚态物质 · 物理学 2007-05-23 N. Nygaard , G. M. Bruun , C. W. Clark , D. L. Feder

The bound states that can occur in a superfluid vortex have recently called for attention owing to the capability of detecting them experimentally. However, a detailed theoretical account for the presence of these vortex bound states is…

超导电性 · 物理学 2019-07-01 S. Simonucci , P. Pieri , G. Calvanese Strinati

Focusing on a quantum-limit behavior, we study a single vortex in a clean s-wave type-II superconductor by self-consistently solving the Bogoliubov-de Gennes equation. The discrete energy levels of the vortex bound states in the quantum…

超导电性 · 物理学 2016-08-31 N. Hayashi , T. Isoshima , M. Ichioka , K. Machida

Quasiparticle states around a single vortex in a $p_x\pm i p_y$-wave superconductor are studied on the basis of the Bogoliubov-de Gennes (BdG) theory, where both charge and current screenings are taken into account. Due to the violation of…

超导电性 · 物理学 2009-11-07 Masashige Matsumoto , Rolf Heeb

The single vortex problem in a strongly correlated bosonic system is investigated self-consistently within the mean-field theory of the Bose-Hubbard model. Near the superfluid-Mott transition, the vortex core has a tendency toward the…

强关联电子 · 物理学 2007-05-23 Congjun Wu , Han-dong Chen , Jiang-ping Hu , Shou-Cheng Zhang

The statistics of the field structure in the vortex core surrounding phase singularities in random wave fields are measured and calculated for diffusive and localized waves. Excellent agreement is found between experiment and theory. The…

介观与纳米尺度物理 · 物理学 2009-11-13 Sheng Zhang , Azriel Z Genack

Bogoliubov-de Gennes theory is used to investigate the effect of the size of a superconducting square on the vortex states in the quantum confinement regime. When the superconducting coherence length is comparable to the Fermi wavelength,…

超导电性 · 物理学 2014-01-20 L. -F. Zhang , L. Covaci , M. V. Milošević , G. R. Berdiyorov , F. M. Peeters

We study the magnon spectrum in a thin ferromagnetic-superconductor heterostructure in the presence of a single superconducting vortex. We employ the Bogolubov-de Gennes Hamiltonian which describes the magnons in the presence of the stray…

介观与纳米尺度物理 · 物理学 2024-09-17 D. S. Katkov , S. S. Apostoloff , I. S. Burmistrov

The temperature dependence of an isolated quantum vortex, embedded in an otherwise homogeneous fermionic superfluid of infinite extent, is determined via the Bogoliubov-de Gennes (BdG) equations across the BCS-BEC crossover. Emphasis is…

超导电性 · 物理学 2015-06-15 S. Simonucci , P. Pieri , G. C. Strinati

The structure of a vortex in the inner crust of neutron stars is calculated within the framework of quantum mean field theory taking into account the interaction with the nuclei composing the Coulomb lattice. Making use of the results…

天体物理学 · 物理学 2009-06-23 P. Avogadro , F. Barranco , R. A. Broglia , E. Vigezzi

Vortex lattices, arising from repulsive inter-vortex interactions, are a canonical example of emergent phenomena. Recent studies on the cuprates have drawn attention to the appearance of competing correlations within vortex cores. This…

超导电性 · 物理学 2018-08-15 Madhuparna Karmakar , R. Ganesh

The microscopic structure of an isolated vortex line in superfluid neutron star matter is studied by solving the Bogoliubov-de Gennes equations. Our calculation, which is the starting point for a microscopic calculation of pinning forces in…

核理论 · 物理学 2009-01-23 F. V. De Blasio , O. Elgaroy

The structures of multiply quantized vortices (MQVs) of an equal-population atomic Fermi superfluid in a rotating spherical bubble trap approximated as a thin shell are analyzed by solving the Bogoliubov-de Gennes (BdG) equation throughout…

量子气体 · 物理学 2023-11-02 Yan He , Chih-Chun Chien
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