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Related papers: Josephson currents in neutron stars

200 papers

We present a theory for the Josephson effect in an unconventional superconductor / one-dimensional electron gas / unconventional superconductor (s/o/s) junction, where the Josephson current is carried by components injected perpendicular to…

Superconductivity · Physics 2009-10-31 Yukio Tanaka , Takashi Hirai , Koichi Kusakabe , Satoshi Kashiwaya

A stationary Josephson effect in the ballistic contact of two d-wave superconductors with different axes orientation and with tangential transport current in the banks is considered theoretically. We study the influence of the transport…

Superconductivity · Physics 2011-07-26 Yu. A. Kolesnichenko , A. N. Omelyanchouk , S. N. Shevchenko

To reveal the influence of the exchange interaction on the Josephson effect, the d.c. Josephson current in unconventional-superconductor / ferromagnet / unconventional-superconductor junctions is studied. When the two superconductors have…

Superconductivity · Physics 2007-05-23 Y. Tanaka , S. Kashiwaya

Driven atomic Josephson junctions allow one to monitor phase-coherent dynamics with unprecedented control and flexibility of the system's physical conditions. While cold-atom manifestations of the Josephson effect have been extensively…

Quantum Gases · Physics 2026-04-28 Kevin T. Geier , Giampiero Marchegiani , Vijay Pal Singh , Juan Polo , Luigi Amico

The Josephson effect is a kind of macroscopic quantum phenomenon that supercurrent flows through a Josephson junction without any voltage applied. We predict a novel vortex-state-mediated Josephson effect in an SNS Josephson junction…

Superconductivity · Physics 2014-09-04 Zhao Yang Zeng , Chong Zhang

Motivated by the recent proposals for unconventional emergent physics in twisted bilayers of nodal superconductors, we study the peculiarities of the Josephson effect at the twisted interface between $d$-wave superconductors. We demonstrate…

Superconductivity · Physics 2025-01-31 Pavel A. Volkov , Shu Yang Frank Zhao , Nicola Poccia , Xiaomeng Cui , Philip Kim , J. H. Pixley

Recent observations of old warm neutron stars suggest the presence of a heating source in these stars, requiring a paradigm beyond the standard neutron-star cooling theory. In this work, we study the scenario where this heating is caused by…

High Energy Astrophysical Phenomena · Physics 2023-08-31 Motoko Fujiwara , Koichi Hamaguchi , Natsumi Nagata , Maura E. Ramirez-Quezada

Josephson junctions enable dissipation-less electrical current through metals and insulators below a critical current. Despite being central to quantum technology based on superconducting quantum bits and fundamental research into…

Effective charged neutrons involved in one- and two- nucleon tunneling processes in heavy ion collisions between superfluid nuclei are expected to emit photons. Although the centroid, width and integrated energy area characterizing the…

Nuclear Theory · Physics 2022-07-13 R. A. Broglia , F. Barranco , G. Potel , E. Vigezzi

A formula for the Josephson current between two superconductors with anisotropic pairing symmetries is derived based on the mean-field theory of superconductivity. Zero-energy states formed at the junction interfaces is one of basic…

Superconductivity · Physics 2009-11-07 Yasuhiro Asano

We derive the transport relaxation times for quasiparticle-vortex scattering processes via nuclear force, relevant for the damping of differential rotation of superfluids in the quantum liquid core of a neutron star. The proton scattering…

Astrophysics · Physics 2010-01-06 Armen Sedrakian

The proton-neutron 2 particles - 2 holes correlations in superfluid nuclei, described by an effective, Josephson-type interaction ~[(P+N-)+(P-N+)], are studied within a boson approximation. The strength of this interaction is estimated…

Nuclear Theory · Physics 2009-02-25 M. Grigorescu

Josephson-like junctions, transiently established in heavy ion collisions between superfluid nuclei, few MeV below the Coulomb barrier, allow for the back and forth transfer of a nuclear Cooper pair of effectively charged nucleons and thus…

Nuclear Theory · Physics 2022-06-22 R. A. Broglia , F. Barranco , L. Corradi , G. Potel , S. Szilner , E. Vigezzi

We develop a theoretical framework that allows us to explore the coupled motion of neutron-superfluid vortices and proton-superconductor flux tubes in a gravitationally collapsed condensate, which describe neutron stars that form pulsars.…

High Energy Astrophysical Phenomena · Physics 2024-10-16 Sanjay Shukla , Marc E. Brachet , Rahul Pandit

In this paper we extend our earlier analysis of the novel Josephson effect in triplet superconductor--ferromagnet--triplet superconductor (TFT) junctions [B. Kastening \emph{et al.}, Phys. Rev. Lett. {\bf{96}}, 047009 (2006)]. In our more…

Superconductivity · Physics 2009-01-26 P. M. R. Brydon , Boris Kastening , Dirk K. Morr , Dirk Manske

We discuss the dependence of the Josephson current correlations in mesoscopic superconductor/normal-conductor/superconductor (SNS) devices on the transparency of the superconductor/normal-conductor (SN) interfaces. Focusing on short…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 T. Micklitz

We theoretically investigate the properties of ultra-cold dipolar atoms in radially coupled, concentric annular traps created by a potential barrier. The non-rotating ground-state phases are investigated across the superfluid-supersolid…

Quantum Gases · Physics 2025-06-30 Malte Schubert , Koushik Mukherjee , Tilman Pfau , Stephanie Reimann

As mature neutron stars are cold (on the relevant temperature scale), one has to carefully consider the state of matter in their interior. The outer kilometer or so is expected to freeze to form an elastic crust of increasingly neutron-rich…

High Energy Astrophysical Phenomena · Physics 2021-03-19 N. Andersson

The Josephson effect is a prominent phenomenon of quantum supercurrents that has been widely studied in superconductors and superfluids. Typical Josephson junctions consist of two real-space superconductors (superfluids) coupled through a…

We show that the neutron star's crust-core interface acts as a potential barrier on the peripheral neutron vortices approaching this interface and thus prevents their continuous decay on it in the course of equilibrium state deceleration.…

Astrophysics · Physics 2008-02-03 A. Sedrakian , J. Cordes
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