Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Galaktionov, Artem V."'
Publikováno v:
Phys. Rev. B 107, 214507 (2023)
We theoretically analyze Josephson dynamics of superconducting weak links with transmissions ${\mathcal T}$ not much smaller than unity at subgap bias voltages $V$. Employing the effective action approach combined with the Keldysh technique we develo
Externí odkaz:
http://arxiv.org/abs/2306.14493
Publikováno v:
Phys. Rev. B 104, 054521 (2021)
It is widely believed that superconducting junctions involving topological insulators and hosting Majorana-like bound states may exhibit unusual "fractional" ($4\pi$-periodic) ac Josephson effect. Accordingly, "fractional" Shapiro steps on the curren
Externí odkaz:
http://arxiv.org/abs/2107.05293
Publikováno v:
Phys. Status Solidi RRL, 1800256 (2018)
We propose to study frequency dependent intrinsic dissipation in a highly transparent Josephson junction by means of qubit spectroscopy. The spectral density of the effective dissipative bath may contain significant contributions from Andreev bound s
Externí odkaz:
http://arxiv.org/abs/1810.00750
With the aid of the Keldysh effective action technique we develop a microscopic theory describing Andreev level spectroscopy experiments in non-tunnel superconducting contacts. We derive an effective impedance of such contacts which accounts for the
Externí odkaz:
http://arxiv.org/abs/1510.06509
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
Phys. Rev. B 79, 014521 (2009)
We develop a general microscopic theory of dc Josephson effect in hybrid SNS structures with ballistic electrodes and spin-active NS interfaces. We establish a direct relation between the spectrum of Andreev levels and the Josephson current which con
Externí odkaz:
http://arxiv.org/abs/0811.0685
Publikováno v:
Phys. Rev. B 77, 094520 (2008)
We develop a detailed microscopic theory describing dc Josephson effect and Andreev bound states in superconducting junctions with a half-metal. In such systems the supercurrent is caused by triplet pairing states emerging due to spin-flip scattering
Externí odkaz:
http://arxiv.org/abs/0711.4955
Employing a real time effective action formalism we analyze electron transport and current fluctuations in comparatively short coherent conductors in the presence of electron-electron interactions. We demonstrate that, while Coulomb interaction tends
Externí odkaz:
http://arxiv.org/abs/cond-mat/0503552
We analyze an interplay between the proximity effect and quantum interference of electrons in hybrid structures superconductor-normal metal-superconductor which contain several insulating barriers. We demonstrate that the dc Josephson current in thes
Externí odkaz:
http://arxiv.org/abs/cond-mat/0112242
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.