Zobrazeno 1 - 10
of 205
pro vyhledávání: '"Cruz, Héctor"'
The unresolved gamma-ray background (UGRB) is a diffuse gamma-ray emission arising from numerous extragalactic sources below the detection threshold and is an important component of the gamma-ray sky. Studying the UGRB is crucial for understanding hi
Externí odkaz:
http://arxiv.org/abs/2410.00375
Observations of the 21-cm signal are opening a window to the cosmic-dawn epoch, when the first stars formed. These observations are usually interpreted with semi-numerical or hydrodynamical simulations, which are often computationally intensive and i
Externí odkaz:
http://arxiv.org/abs/2407.18294
Autor:
Long, Min, Jimeno-Pozo, Alejandro, Sainz-Cruz, Hector, Pantaleon, Pierre A., Guinea, Francisco
The group of moir\'e graphene superconductors keeps growing, and by now it contains twisted graphene multilayers and twisted double bilayers. We analyze the contribution of long range charge fluctuations in the superconductivity of twisted double gra
Externí odkaz:
http://arxiv.org/abs/2403.00903
Motivated by a recent experiment [Kapfer et. al., Science {\bf 381}, 677 (2023)], we analyze the structural effects and low-energy physics of a bent nanoribbon placed on top of graphene, which creates a gradually changing moir\'e pattern. By means of
Externí odkaz:
http://arxiv.org/abs/2310.13743
The fluid forces associated with primordial magnetic fields (PMFs) generate small-scale fluctuations in the primordial density field, which add to the $\mathrm{\Lambda CDM}$ linear matter power spectrum on small scales. These enhanced small-scale flu
Externí odkaz:
http://arxiv.org/abs/2308.04483
We study the broad-band spectral energy distribution (SED) of the prototypical low-mass active galactic nucleus (AGN) in NGC 4395. We jointly model the optical through mid-infrared SED with a combination of galaxy and AGN light, and find that on arcs
Externí odkaz:
http://arxiv.org/abs/2307.15111
Inspired by recent experimental discoveries of superconductivity in chirally-stacked and twisted multilayer graphene, we study models of $f$-wave superconductivity on the honeycomb lattice with arbitrary numbers of layers. These models respect a mirr
Externí odkaz:
http://arxiv.org/abs/2307.03031
Perturbations to the cosmic baryon density - and thus to the total-matter density - can be induced by magnetohydronamic forces if there are primordial magnetic fields. The power spectrum for these density perturbations was first provided in 1996, but
Externí odkaz:
http://arxiv.org/abs/2306.11319
Primordial magnetic fields (PMFs) offer a compelling explanation for the origin of observed magnetic fields, especially on extragalactic scales. Such PMFs give rise to excess of power in small scale matter perturbations that could strongly influence
Externí odkaz:
http://arxiv.org/abs/2305.06440
Autor:
Li, Ziyan, Kuang, Xueheng, Jimeno-Pozo, Alejandro, Sainz-Cruz, Héctor, Zhan, Zhen, Yuan, Shengjun, Guinea, Francisco
Publikováno v:
Phys. Rev. B 108 (2023) 045404
Motivated by the recent experimental detection of superconductivity in Bernal bilayer (AB) and rhombohedral trilayer (ABC) graphene, we study the emergence of superconductivity in multilayer graphene based on a Kohn-Luttinger (KL)-like mechanism in w
Externí odkaz:
http://arxiv.org/abs/2303.17286