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Semiclassical gravity theory and quantum fluctuations [PDF]
Physical Review D, 1993 We discuss the limits of validity of the semiclassical theory of gravity in which a classical metric is coupled to the expectation value of the stress tensor. It is argued that this theory is a good approximation only when the fluctuations in the stress tensor are small. We calculate a dimensionless measure of these fluctuations for a scalar field on a
Kuo, Chung-I, Ford, L. H.
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On the Balance between Emigration and Immigration as Random Walks on Non-Negative Integers
MathematicsLife is on a razor’s edge resulting from the random competitive forces of birth and death. We illustrate this aphorism in the context of three Markov chain population models where systematic random immigration events promoting growth are simultaneously ...
Thierry E. Huillet
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Evaluation Method of Wind Power Consumption Capacity Based on Multi-Fractal Theory
Frontiers in Energy Research, 2021 An analysis model of wind power consumption capacity is established with the multi-fractal theory. Firstly, the fluctuation characteristics of wind power are described through multi-fractal parameters, and the correlation between wind power fluctuation ...
Hongzhong Li +3 more
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Thermodynamic Geometry of Yang–Mills Vacua
Universe, 2019 We study vacuum fluctuation properties of an ensemble of S U ( N ) gauge theory configurations, in the limit of many colors, viz. N c → ∞ , and explore the statistical nature of the topological susceptibility by analyzing its
Stefano Bellucci, Bhupendra Nath Tiwari
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Magnetic quantum and spin-wave behavior of three-layer graphene-like materials
Results in Physics, 2023 This study examines the spin-wave and magnetic quantum behavior of three-layer graphene-like based on the Heisenberg model. The system is diagonally solved for Hamiltonian quantities using the linear spin wave theory and postponed Green's functions.
Shi-Qi Liu +4 more
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Partition polynomials in fluctuation theory
Mathematische Nachrichten, 1982 In the present paper the BELL and TOUCHARD partition polynomials have been used in expressing certain probabilities in finite fluctuation problems in random walks. The study of these probabilities is simplified by using properties of these polynomials.
CHARALAMBIDES, CA, CHRYSAPHINOU, OD
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks +5 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Cup‐like nuclei are a distinctive morphological feature observed in certain cases of acute lymphoblastic leukemia (ALL). We provide evidence that they characterize DUX4/ERG ALL independently of IKZF1 deletion and reveal marked mitochondrial accumulation in this ALL subset.
Chloé Arfeuille +9 more
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Mixed Periodic-Classical Barrier Strategies for Lévy Risk Processes
Risks, 2018 Given a spectrally-negative Lévy process and independent Poisson observation times, we consider a periodic barrier strategy that pushes the process down to a certain level whenever the observed value is above it.
José-Luis Pérez, Kazutoshi Yamazaki
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Research on the Impact of International Oil Prices on the Economy of Russia [PDF]
E3S Web of Conferences, 2020 In the process of Russian economic development, the oil industry is one of the important pillar industries. More than 50% of the total revenue of the Russian government comes from the oil and gas industry.
Wu Jiuxia
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