Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Naoto Tsuji"'
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p 013120 (2024)
Multiband superconductors are sources of rich physics arising from multiple order parameters, which show unique collective dynamics including Leggett mode as relative phase oscillations. Previously, it has been pointed out that the Leggett mode can b
Externí odkaz:
https://doaj.org/article/4ecdf56ee1bd4178982b42881d3ae3a6
Autor:
Naoto Tsuji, Yusuke Nomura
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043029 (2020)
We theoretically investigate the resonance of third harmonic generation (THG) that has been observed at frequency being half of the superconducting gap in a multiband disordered superconductor NbN. The central question is whether the dominant contrib
Externí odkaz:
https://doaj.org/article/c00fb2a6fb8e4f9681870f2b91979e63
Autor:
Götz S. Uhrig, Nathan Cheng, Benedikt Fauseweh, Nikolaj Bittner, Dirk Manske, Andreas P. Schnyder, Lukas Schwarz, H. Krull, Stefan Kaiser, Mona Berciu, Naoto Tsuji
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Nature Communications
Nature Communications
Recent findings of new Higgs modes in unconventional superconductors require a classification and characterization of the modes allowed by nontrivial gap symmetry. Here we develop a theory for a tailored nonequilibrium quantum quench to excite all po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f2ed615ab270916bc3ba92339371cb8
https://doaj.org/article/89e46bf5ff2a48e0942aa73fd96459ef
https://doaj.org/article/89e46bf5ff2a48e0942aa73fd96459ef
We study optical responses of Leggett modes in multiband superconductors in the linear response regime. The Leggett mode is a collective mode unique to multiband superconductors that arises from relative phase fluctuations of superconducting orders f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77b9b9d88571397d98f782963d6bda55
Publikováno v:
Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2019).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1725b47c839b9332c954084a5c04a632
https://doi.org/10.7566/jpscp.30.011047
https://doi.org/10.7566/jpscp.30.011047
We predict a new mechanism to induce collective excitations and a nonequilibrium phase transition of fermionic superfluids via a sudden switch-on of two-body loss, for which we extend the BCS theory to fully incorporate a change in particle number. W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a9b7db2636fdfaf3f64805dfd1a195e
Autor:
Naoto Tsuji, Ryo Shimano
When a continuous symmetry of a physical system is spontaneously broken, two types of collective modes typically emerge: the amplitude and phase modes of the order-parameter fluctuation. For superconductors, the amplitude mode is recently referred to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68d4e5edf8e1a9e75b2226a8e174fd2d
http://arxiv.org/abs/1906.09401
http://arxiv.org/abs/1906.09401
Autor:
Philipp Werner, Naoto Tsuji
Publikováno v:
Physical Review B. 99
The Sachdev-Ye-Kitaev (SYK) model describes a strange metal that shows peculiar non-Fermi-liquid properties without quasiparticles. It exhibits a maximally chaotic behavior characterized by out-of-time-ordered correlators (OTOCs), and is expected to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dcead9ed5fa40c1975fd7581741afcaf
https://doi.org/10.1103/physrevb.99.115132
https://doi.org/10.1103/physrevb.99.115132
Publikováno v:
Physical Review B. 99
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::725b4dc88d42f0c60840df8066bee7af
https://doi.org/10.1103/physrevb.99.019902
https://doi.org/10.1103/physrevb.99.019902
In quantum magnetism, the virtual exchange of particles mediates an interaction between spins. Here, we show that an inelastic Hubbard interaction fundamentally alters the magnetism of the Hubbard model due to dissipation in spin-exchange processes,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd5f376597169f9f28debe8f5f588435