Zobrazeno 1 - 10
of 175
pro vyhledávání: '"Sang-Jin Sin"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-19 (2024)
Abstract The fermion gaps are classified into order gap or Mott gap depending on the presence/absence of the order parameter. We construct the holographic model of the Mott gap using the field that is supported by the density only without introducing
Externí odkaz:
https://doaj.org/article/8a97b9f9da8e447e86f29e44f75d5079
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 6, Pp 1-36 (2024)
Abstract In this paper, we develop the holographic mean field theory for strongly interacting fermion systems. We investigate various types of the symmetry-breakings and their effect on the spectral function. We found analytic expressions of fermion
Externí odkaz:
https://doaj.org/article/848ae071681c4a539d000ab53bdfdbe3
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 10, Pp 1-22 (2023)
Abstract We have investigated the fermionic spectral function in p-wave holographic superconductors. We show that the vector model with minimal coupling reveals a p-wave spectral function with Fermi arc. This should be contrasted with the previous in
Externí odkaz:
https://doaj.org/article/a6d831cb32a84319b2c489b2a29ddbc2
Autor:
Yoon-Seok Choun, Sang-Jin Sin
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 9, Pp 1-6 (2023)
Abstract We have shown that in holographic superconductivity theory for 3+1 dimensional system, the scaling dimension of Cooper pair operator can be obtained as a quantized value if we request that the the scalar function describing the order paramet
Externí odkaz:
https://doaj.org/article/56e5ee5b3e1948bba4aaa6d38ad9f9b2
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 6, Pp 1-23 (2023)
Abstract In this work, we study Metal-Insulator transition in a holographic model containing an interaction between the order parameter and charge-carrier density. It turns out that the impurity density of this model can drive the phase transition wh
Externí odkaz:
https://doaj.org/article/0ff05d9bf6754d2b949a1bf2413ae7cc
Autor:
Taewon Yuk, Sang-Jin Sin
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 2, Pp 1-19 (2023)
Abstract We reconsider the fermion spectral function in the presence of the Cooper pair condensation and identified the interaction type of complex scalar and fermion, which gives consistent results with the expected s-wave superconductor for the fir
Externí odkaz:
https://doaj.org/article/86af5c3cad914c3096fa8c1469382360
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 2, Pp 1-21 (2023)
Abstract We first point out that the Laia-Tong model realizes the Lieb lattice in the holographic setup. It generates a flat band of sharp particle spectrum together with a Dirac band of unparticle spectrum. We provided an understanding why the Laia-
Externí odkaz:
https://doaj.org/article/0362a3858b584d149327d677d7ee7cc8
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 11, Pp 1-19 (2022)
Abstract A flat band can be studied an infinitely strong coupling, realized in a simple system. Therefore, its holographic realization should be interesting. Laia and Tong gave a realization of the flat band over the entire momentum region by introdu
Externí odkaz:
https://doaj.org/article/0654542f58e3407eafb0a34985a86a0b
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 9, Pp 1-29 (2022)
Abstract We reconsider the angular dependence in gap structure of holographic superconductors, which has not been treated carefully so far. For the vector field model, we show that the normalizable ground state is in the p-wave state because s-wave s
Externí odkaz:
https://doaj.org/article/fbfc2a54f8d44801a216fce0a22d6274
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 5, Pp 1-33 (2022)
Abstract We present the new method to calculate the critical temperature as a function of $$\Delta $$ Δ , conformal dimension of the cooper operator. We find that, in the regime $$1/2\le \Delta
Externí odkaz:
https://doaj.org/article/6db40f3c8e654cbfb82c89771ecb2b66