Zobrazeno 1 - 10
of 12 011
pro vyhledávání: '"Liu, Xia"'
By using both diagrammatic theory and Chevy ansatz approach, we derive an exact set of equations, which determines the spectral function of Fermi polarons with multiple particle-hole excitations at nonzero temperature. In the diagrammatic theory, we
Externí odkaz:
http://arxiv.org/abs/2403.09064
We develop a general theory of Fermi polarons at nonzero temperature, including particle-hole excitations of the Fermi sea shake-up to arbitrarily high orders. The exact set of equations of the spectral function is derived by using both Chevy ansatz
Externí odkaz:
http://arxiv.org/abs/2402.11805
We study the optical appearance of Schwarzschild-de Sitter and Reissner-Nordstr\"{o}m-de Sitter black holes viewed by distant observers inside cosmological horizons. Unlike their asymptotically flat counterparts, due to the positive cosmological cons
Externí odkaz:
http://arxiv.org/abs/2401.15408
Quadratic constrained quadratic programming problems often occur in various fields such as engineering practice, management science, and network communication. This article mainly studies a non convex quadratic programming problem with convex quadrat
Externí odkaz:
http://arxiv.org/abs/2312.16216
The strong cosmic censorship conjecture, which states that the evolution of generic initial data will always produce a globally hyperbolic spacetime, is hard to be tested by astronomical observations. In this paper, we study the appearance of the reg
Externí odkaz:
http://arxiv.org/abs/2312.04301
We consider the Fermi polaron problem of an impurity hopping around a two-dimensional square lattice and interacting with a sea of fermions at given filling factor. When the interaction is attractive, we find standard Fermi polaron quasiparticles, ca
Externí odkaz:
http://arxiv.org/abs/2312.00385
Autor:
Hu, Hui, Liu, Xia-Ji
Publikováno v:
Physical Review A 109, 063313 (2024)
We theoretically examine the finite-temperature spectral function of Fermi polarons in three dimensions, by using a self-consistent many-body $T$-matrix theory in real frequency. In comparison with the previous results from a non-self-consistent many
Externí odkaz:
http://arxiv.org/abs/2311.11554
Publikováno v:
AAPPS Bulletin 33, 27 (2023)
We theoretically investigate the polaron physics of an impurity immersed in a two-dimensional Fermi sea, interacting via a p-wave interaction at finite temperature. In the unitary limit with a divergent scattering area, we find a well-defined repulsi
Externí odkaz:
http://arxiv.org/abs/2311.10238
This paper delves into the subject of quantum broadcasting, which allows information contained in a quantum state to be shared among multiple quantum systems. Considering the restrictions imposed by the no-cloning and no-broadcasting theorems, we int
Externí odkaz:
http://arxiv.org/abs/2310.15156
Autor:
Xaisongkham, Sorphasith, Liu, Xia
Publikováno v:
International Journal of Emerging Markets, 2022, Vol. 19, Issue 7, pp. 1920-1939.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/IJOEM-10-2021-1583