Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Dmitrii S. Golubev"'
Autor:
Dmitrii S. Golubev, Andrei D. Zaikin
Publikováno v:
Physical Review B. 59:9195-9213
We develope a theory of a fundamental effect of the interaction-induced decoherence of the electron wave function in a disordered metal. With the aid of the Keldysh technique and the path integral formalism we derive a formally exact equation of moti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d99707ddf463f2bfceae4b5aaab8194a
https://doi.org/10.1103/physrevb.59.9195
https://doi.org/10.1103/physrevb.59.9195
Publikováno v:
Physical Review Letters. 78:1552-1555
We present a microscopic study of the quantum fluctuations of the superconducting order parameter in thin homogeneous superconducting wires at all temperatures below T{sub c}. The rate of quantum phase-slip processes determines the resistance R(T) of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9622bf741837a3e8bb4589e0c4f597db
https://doi.org/10.1103/physrevlett.78.1552
https://doi.org/10.1103/physrevlett.78.1552
Publikováno v:
Physica B: Condensed Matter. 203:417-422
In the vicinity of the Coulomb blockade threshold virtual electron tunneling leads to effective screening of the charge on small metallic junctions. We present a nonperturbative calculation of the junction ground state energy and level splitting clos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65fc61616c9210b3f1bf6b470f414720
https://doi.org/10.1016/0921-4526(94)90090-6
https://doi.org/10.1016/0921-4526(94)90090-6
Autor:
Dmitrii S. Golubev, Andrei D. Zaikin
We theoretically analyze non-local electron transport in multi-terminal normal-metal-superconductor-normal-metal (NSN) devices in the presence of an external ac voltage bias. Our analysis reveals a number of interesting effects, such as, e.g., photon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7fa7c2d100487c2084035b52ae42f180
http://arxiv.org/abs/0902.2864
http://arxiv.org/abs/0902.2864
Publikováno v:
Physics reports, 464 (1-2), 1-70
Superconducting properties of metallic nanowires can be entirely different from those of bulk superconductors because of the dominating role played by thermal and quantum fluctuations of the order parameter. For superconducting wires with diameters b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b78a0226da3532334d2fb7ada7a5da9b
Autor:
Dmitrii S. Golubev, Andrei D. Zaikin
Publikováno v:
Physical review letters. 86(21)
An interplay between charge discreteness, coherent scattering and Coulomb interaction yields nontrivial effects in quantum transport. We derive a real time effective action and an equivalent quantum Langevin equation for an arbitrary coherent scatter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb0e86cdd82d1d8a51efd49ac34d79f2
https://pubmed.ncbi.nlm.nih.gov/11384373
https://pubmed.ncbi.nlm.nih.gov/11384373
Autor:
Andrei D. Zaikin, Dmitrii S. Golubev
We present a nonperturbative approach which allows to evaluate the weak localization correction to the conductivity of disordered conductors in the presence of interactions. The effect of the electron-electron interaction on the magnetoconductance is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::408fe4042523d5b34dafca741a343a55
Autor:
Andrei D. Zaikin, Dmitrii S. Golubev
We discuss a fundamental effect of the interaction-induced decoherence of the electron wave function in disordered metals. In the first part of the paper we consider a simple model of a quantum particle interacting with a bath of harmonic oscillators
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf8bb3e261f7f04a692e2e4c4d8c9223
http://arxiv.org/abs/cond-mat/9804156
http://arxiv.org/abs/cond-mat/9804156
We investigate the breakdown of BCS superconductivity in {\em ultra}\/small metallic grains as a function of particle size (characterized by the mean spacing $d$ between discrete electronic eigenstates), and the parity ($P$ = even/odd) of the number
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e561acee926bffc578e7a179642ba0a
Publikováno v:
Czechoslovak Journal of Physics. 46:2391-2392
Recent experiments [1] allowed to approach an answer on a fundamental question: what are the size limitations for the existence of superconductivity? In this paper we develop a theoretical investigation of the low temperature behavior of ultrasmall m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d93a128d5bfc3d8ae29de2a32aa5268f
https://doi.org/10.1007/bf02571187
https://doi.org/10.1007/bf02571187