Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Boris V. Svistunov"'
Autor:
Pengcheng Hou, Xiansheng Cai, Tao Wang, Youjin Deng, Nikolay V. Prokof'ev, Boris V. Svistunov, Kun Chen
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p 013099 (2024)
Superconductivity at low temperature—observed in lithium and bismuth, as well as in various low-density superconductors—calls for the development of reliable theoretical and experimental tools for predicting ultralow critical temperatures T_{c} o
Externí odkaz:
https://doaj.org/article/3c20ae56933b42debf970d9f8e8276b6
Publikováno v:
Physical Review B. 107
We address the outstanding problem of electron pairing in the presence of strong Coulomb repulsion at small to moderate values of the Coulomb parameter, $r_s \lesssim 2$, and demonstrate that the pseudopotential framework is fundamentally biased and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ddcf9ce80423ba4ad26b7f498b7af74
https://doi.org/10.1103/physrevb.107.l140507
https://doi.org/10.1103/physrevb.107.l140507
Publikováno v:
Physical Review Letters. 128
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c0f7615a3bf453f6400368079c14dd5
https://doi.org/10.1103/physrevlett.128.255301
https://doi.org/10.1103/physrevlett.128.255301
Motivated by the problem of polaron effect due to phonon-modulated hopping, we formulate a generic Monte Carlo technique for solving it in the coordinate representation for both the particle and atomic displacements. The method applies to a broad cla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9e80f59752ea1339b84cfabbaacd382
http://arxiv.org/abs/2205.01154
http://arxiv.org/abs/2205.01154
We study the Cooper instability in jellium model in the controlled regime of small to intermediate values of the Coulomb parameter $r_s \leq 2$. We confirm that superconductivity naturally emerges from purely repulsive interactions described by the K
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1edd2b39818742aac40892f6dc0e9d05
http://arxiv.org/abs/2202.01320
http://arxiv.org/abs/2202.01320
Publikováno v:
Physical review letters. 128(25)
The unique superflow-through-solid effect observed in solid ^{4}He and attributed to the quasi-one-dimensional superfluidity along the dislocation cores exhibits two extraordinary features: (i) an exponentially strong suppression of the flow by a mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::3dbf1bd25d796f8b04f66ee088e7ffd4
https://pubmed.ncbi.nlm.nih.gov/35802435
https://pubmed.ncbi.nlm.nih.gov/35802435
Polarons originating from phonon displacement modulated hopping have relatively light masses and, thus, are of significant current interest as candidates for bipolaron mechanism of high-temperature superconductivity [Phys. Rev. Lett. {\bf 121}, 24700
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2305ef37e304ec6bc8ba5bfe241f082
http://arxiv.org/abs/2108.06725
http://arxiv.org/abs/2108.06725
Publikováno v:
New Journal of Physics, Vol 18, Iss 11, p 113025 (2016)
Applying Feynman diagrammatics to non-fermionic strongly correlated models with local constraints might seem generically impossible for two separate reasons: (i) the necessity to have a Gaussian (non-interacting) limit on top of which the perturbativ
Externí odkaz:
https://doaj.org/article/e1df900e04b548c88b1c47229fa09a66
Covers the State of the Art in Superfluidity and SuperconductivitySuperfluid States of Matter addresses the phenomenon of superfluidity/superconductivity through an emergent, topologically protected constant of motion and covers topics developed over