Article
Multidisciplinary Sciences
Oleksandr Tomalak, Qing Chen, Richard J. Hill, Kevin S. McFarland
Summary: Neutrino oscillation experiments aim to establish charge-parity violation by measuring the rate of neutrino appearance and disappearance in a beam, but are influenced by theoretical constraints and corrections. Using a factorization theorem helps minimize uncertainties in predicting neutrino cross-section ratios.
NATURE COMMUNICATIONS
(2022)
Article
Robotics
Wanxin Jin, Todd D. Murphey, Zehui Lu, Shaoshuai Mou
Summary: This article proposes a novel method for a robot to learn an objective function from human directional corrections. The method only requires directional corrections, rather than magnitude corrections, leading to more effective and efficient robot learning.
IEEE TRANSACTIONS ON ROBOTICS
(2023)
Article
Astronomy & Astrophysics
Alessio Belfiglio, Orlando Luongo, Stefano Mancini
Summary: We investigate the entanglement production caused by inhomogeneous perturbations over a homogeneous and isotropic cosmic background, and demonstrate the relevant consequences of the interplay between quantum and geometric effects on entanglement entropy. The results show that the mode mixing induced by the underlying geometry plays a crucial role in entanglement production.
Article
Optics
D. Solovyev, T. Zalialiutdinov, A. Anikin
Summary: This paper discusses the temperature-dependent corrections to energy levels for the positronium atom, including relativistic effects. The theoretical description of the impact of thermal environment on atomic characteristics is conducted within the framework of rigorous relativistic quantum electrodynamics. The results evaluate the finite temperature corrections to the fine and hyperfine structure of positronium levels, and the annihilation rates in an equilibrium thermal environment are studied.
Article
Engineering, Aerospace
J. M. Gambi, C. Phipps, M. L. Garcia del Pino, M. C. Rodriguez-Teijeiro, J. Arana
Summary: The study introduces a method using lasers in space to avoid collisions, implementing trackers in Sun-synchronous orbits to make corrections.
Article
Physics, Multidisciplinary
Tamas Gombor
Summary: This article highlights the significance of long-range spin chains in the gauge-string duality and generalizes the transfer matrices of integrable medium-range spin chains to long-range models. The introduced transfer matrices define conserved charges for each length of the spin chain, providing a definition for integrable finite-size long-range spin chains with the inclusion of wrapping corrections in their spectrum.
PHYSICAL REVIEW LETTERS
(2022)
Article
Astronomy & Astrophysics
S. Reece Boston, Charles R. Evans, J. Christopher Clemens
Summary: With modern space-based observations, the effects of general relativity can be detected in the light curves of pulsating white dwarfs. By comparing mode periods calculated using Newtonian and general relativity descriptions, it was found that general relativity leads to observable effects.
ASTROPHYSICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
Ahmad Sheykhi
Summary: Barrow argued that quantum-gravitational effects may introduce fractal features on the black hole horizon and discussed the impact of Barrow entropy on cosmological equations, revealing modified Friedmann equations as well as examining the validity of the generalized second law of thermodynamics for the Universe enclosed by the apparent horizon.
Article
Astronomy & Astrophysics
A. Jamali Hafshejani, A. Mirjalili
Summary: The proposed mass-dependent momentum subtraction (MOM) scheme is used to renormalize UV divergence of unpolarized PDFs at one-loop order, based on a once subtracted dispersion relation without the need for a regulator. The mass-dependent characteristic of the scheme leads to mass-dependent splitting functions for the DGLAP evolution equations, while automatically imposing the decoupling theorem. The required symmetries are also automatically respected by this approach.
Article
Chemistry, Analytical
S. Jon Chapman, Charles W. Monroe, Shiv Krishna Madi Reddy, Alexander Van-Brunt, Ralph E. White
Summary: A short-time asymptotic analysis was conducted to establish corrections of the Ilkovich equation, with the calculation of the second-order term for the first time. The results were compared to the Newman-Levich procedure and tested against numerical simulations with finite-element software.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Astronomy & Astrophysics
Cyril Renevey, Killian Martineau, Aurelien Barrau
Summary: This study investigates the influence of generalized corrections in loop quantum cosmology, finding that a long enough inflation phase can be generated by purely quantum geometrical effects, but also highlighting the limitations of this scenario. Additionally, the effects of generalized holonomy corrections on an inflationary phase generated by a massive scalar field are studied, and the consequences on the primordial scalar power spectrum are examined in detail. These results are actually quite general and can be applied beyond the loop framework.
Article
Astronomy & Astrophysics
Nikolay Kivel
Summary: We study the relativistic corrections to the J/ψ decay into a proton-antiproton final state. By calculating the relativistic QCD corrections to the dominant decay amplitude, which only depend on the nucleon twist-3 light-cone distribution amplitudes, we find that the collinear factorization is also valid beyond the leading-order approximation. Our numerical estimates show that the relativistic correction can have a significant impact on the decay amplitude.
Article
Astronomy & Astrophysics
William Giare, Fabrizio Renzi, Alessandro Melchiorri
Summary: This paper investigates the effects of higher-curvature corrections on the spectrum of primordial tensor perturbations. It shows that observable violation of the tensor consistency relation from higher-curvature tensors can lead to relatively large changes in tensor tilt. This may leave signatures in the tensor two-point function that can be tested to identify higher-curvature effects, especially if they result in a blue tilted spectrum visible in future gravitational wave experiments.
Article
Astronomy & Astrophysics
Jai-chan Hwang, Hyerim Noh
Summary: In this paper, we present the first-order post-Newtonian (1PN) approximations for a general imperfect fluid and an axion as a coherently oscillating massive scalar field in the cosmological context. For the axion, we derive the Schrodinger and Madelung hydrodynamic formulations using the Klein transformation and Madelung transformation, respectively, in an exact covariant way and to 1PN order. The complete sets of 1PN formulations are obtained without fixing the temporal gauge condition. We investigate the linear instability in cosmology and the static limit for both fluid and axion, independently of the gauge condition to 1PN order, thus ensuring gauge invariance.
Article
Astronomy & Astrophysics
P. A. Anempodistov, E. T. Akhmedov
Summary: This paper investigates the dynamics of the massive minimally coupled scalar field theory in an expanding universe. By computing infrared loop corrections and anomalous quantum average, it is found that these corrections grow with time. Furthermore, it demonstrates that the regularized stress-energy tensor at the distant future acquires substantial quantum corrections.
