Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Kristian Hauser Villegas"'
We report on a novel mechanism of BCS-like superconductivity, mediated by a pair of Bogoliubov quasiparticles (bogolons). It takes place in hybrid systems consisting of a two-dimensional electron gas in a transition metal dichalcogenide monolayer in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::697aa87326919fc4583a2a74561c9a42
https://hdl.handle.net/10356/153873
https://hdl.handle.net/10356/153873
Autor:
Kristian Hauser Villegas, Bo Yang
Higgs spectroscopy, the study of Higgs bosons of a superconductor, is an emerging field in studying superconductivity. Here we show that the Berry curvature and the quantum metric of bands play a central role in the Higgs mode generation. They allow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef2caf3b704c8a4b052d9fb574fe803e
We report on the novel mechanism of electron scattering in hybrid Bose-Fermi systems consisting of a two-dimensional electron gas in the vicinity of an exciton condensate: We show that a pair-of-bogolons--mediated scattering proves to be dominating o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b0d73b4093994bf941c55a6d9d42f65
http://arxiv.org/abs/1902.01214
http://arxiv.org/abs/1902.01214
Publikováno v:
2D Materials. 8:031004
We propose a mechanism for robust BCS-like superconductivity in graphene placed in the vicinity of a Bose-Einstein condensate. Electrons in the graphene interact with the excitations above the condensate, called Bogoliubov quasiparticles (or bogolons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26a9bf10b53d4c331279a8fdd88af259
https://doi.org/10.1088/2053-1583/ac0b49
https://doi.org/10.1088/2053-1583/ac0b49
We propose an optical approach to monitor superconductors in conjunction with a normal metal layer. Effectively such a hybrid system represents a resonator, where electrons are strongly coupled with light. We show that the interaction of light with t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ec66bdbdedb5226bc1072f705ad81c0
http://arxiv.org/abs/1805.03177
http://arxiv.org/abs/1805.03177
We report on an unconventional mechanism of electron scattering in graphene in hybrid Bose- Fermi systems. We study energy-dependent electron relaxation time, accounting for the processes of emission and absorption of a Bogoliubov excitation (a bogol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e449e07d55b83979931ff04bfe26431
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 27:493-496
The single-particle tunneling current is calculated for normal metal–superconductor and superconductor–superconductor junctions using the spin polaron theory.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52bb27e71038a90d18a08c739e428da6
https://doi.org/10.1007/s10948-013-2290-5
https://doi.org/10.1007/s10948-013-2290-5
Autor:
Kristian Hauser Villegas
Publikováno v:
Physical Review C. 91
The spatial structures of the chiral symmetry $\text{breaking}(\ensuremath{\chi}\mathrm{SB})\ensuremath{-}\text{quark}\ensuremath{-}\mathrm{antiquark}(q\overline{q})$ pair and two-color $\text{superconducting(2SC)}\ensuremath{-}\text{quark}\ensuremat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf7fddfcd8fac45a27bc9aceba4cddb6
https://doi.org/10.1103/physrevc.91.065209
https://doi.org/10.1103/physrevc.91.065209
Publikováno v:
Physical Review B. 90
We study entanglement between the spin components of the Bardeen-Cooper-Schrieffer (BCS) ground state by calculating the full entanglement spectrum and the corresponding von Neumann entanglement entropy. The entanglement spectrum is effectively model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::069c6c0d53b7986f6421b5283b9ad2f4
https://doi.org/10.1103/physrevb.90.155123
https://doi.org/10.1103/physrevb.90.155123