Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Igor Poboiko"'
Publikováno v:
SciPost Physics, Vol 17, Iss 2, p 066 (2024)
Recent experimental studies on strongly disordered indium oxide films have revealed an unusual first-order quantum phase transition between the superconducting and insulating states (SIT). This transition is characterized by a discontinuous jump from
Externí odkaz:
https://doaj.org/article/cd311e0c631c4801b83ae7512ca39f0a
Publikováno v:
Physical Review X, Vol 13, Iss 4, p 041046 (2023)
We develop an analytical approach to the study of one-dimensional free fermions subject to random projective measurements of local site occupation numbers, based on the Keldysh path-integral formalism and replica trick. In the limit of rare measureme
Externí odkaz:
https://doaj.org/article/bb4f18b880324c0f87b3dc2de73bac5e
Autor:
Mikhail Feigel'man, Igor Poboiko
A glass model of vortex pinning in highly disordered thin superconducting films in magnetic fields $B \ll H_{c2}$ at low temperatures is proposed. Strong collective pinning of a vortex system realized in disordered superconductors that are close to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f44431b52ad89c89b5b026976e3bbf02
Autor:
Igor Poboiko, Mikhail Feigel'man
Publikováno v:
Physical Review B. 97
We calculate Aslamazov-Larkin paraconductity $\sigma_{AL}(T)$ for a model of strongly disordered superconductors (dimensions $d=2,3$) with a large pseudogap whose magnitude strongly exceeds transition temperature $T_c$. We show that, within Gaussian
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35b7298001d588afe3563c3308eb7bae
https://doi.org/10.1103/physrevb.97.014506
https://doi.org/10.1103/physrevb.97.014506
Autor:
Igor Poboiko, Mikhail Feigel'man
We study one-dimensional anisotropic XY-Heisenberg spin-$\frac{1}{2}$ chain with weak random fields $h_i^z S^z_i$ by means of Jordan-Wigner transformation to spinless Luttinger liquid with disorder and bosonization technique. First we investigate pha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fd6f6db3855939ea6a515266a920a7d