Zobrazeno 1 - 10
of 216
pro vyhledávání: '"Osorio, Felipe"'
In this paper we propose a procedure for robust estimation in the context of generalized linear models based on the maximum Lq-likelihood method. Alongside this, an estimation algorithm that represents a natural extension of the usual iteratively wei
Externí odkaz:
http://arxiv.org/abs/2408.04176
Autor:
Reyes-Osorio, Felipe, Garcia-Gaitan, Federico, Strachan, David J., Plechac, Petr, Clark, Stephen R., Nikolic, Branislav K.
We develop a Schwinger-Keldysh field theory (SKFT) for open quantum systems interacting with a dissipative environment and apply it to the spin-boson model as an archetypical example where the environment is composed of a bosonic bath. Prior SKFT dev
Externí odkaz:
http://arxiv.org/abs/2405.00765
Understanding spin wave (SW) damping, and how to control it to the point of being able to amplify SW-mediated signals, is one of the key requirements to bring the envisaged magnonic technologies to fruition. Even widely used magnetic insulators with
Externí odkaz:
http://arxiv.org/abs/2312.09140
Publikováno v:
Phys. Rev. B 109, 024413 (2024)
Understanding the origin of damping mechanisms in magnetization dynamics of metallic ferromagnets is a fundamental problem for nonequilibrium many-body physics of systems where quantum conduction electrons interact with localized spins assumed to be
Externí odkaz:
http://arxiv.org/abs/2306.13013
Publikováno v:
J. Phys. Soc. Jpn. 93, 094707 (2024)
The current-driven motion of magnetic skyrmions, as topologically protected winding vector fields of local magnetization, has attracted considerable attention due to both fundamental interest in the dynamics of topological solitons, and potential spi
Externí odkaz:
http://arxiv.org/abs/2302.04220
Computing the agreement between two continuous sequences is of great interest in statistics when comparing two instruments or one instrument with a gold standard. The probability of agreement (PA) quantifies the similarity between two variables of in
Externí odkaz:
http://arxiv.org/abs/2212.07598
Publikováno v:
Phys. Rev. B 107, 085424 (2023)
We study the low-energy collective properties of a 1D spin-1 Bose gas using bosonization. After giving an overview of the technique, emphasizing the physical aspects, we apply it to the $S=1$ Bose-Hubbard Hamiltonian and find a novel separation of th
Externí odkaz:
http://arxiv.org/abs/2210.13586
The key concept in spintronics of current-driven noncollinear magnetic textures, such as magnetic domain walls (DWs), is adiabaticity, i.e., how closely electronic spins track classical localized magnetic moments (LMMs) of the texture. When mistracki
Externí odkaz:
http://arxiv.org/abs/2112.08356
Autor:
Crudu, Federico, Osorio, Felipe
Publikováno v:
Economics Letters 187, 108885, 2020
This paper develops a set of test statistics based on bilinear forms in the context of the extremum estimation framework with particular interest in nonlinear hypothesis. We show that the proposed statistic converges to a conventional chi-square limi
Externí odkaz:
http://arxiv.org/abs/1912.01410