Results 21 to 30 of about 1,476,337 (273)
Mathematics, 2022 Analysing autoregressive counts over time remains a relevant and evolving matter of interest, where oftentimes the assumption of normality is made for the error terms. In the case when data are discrete, the Poisson model may be assumed for the structure
Ané van der Merwe, Johannes T. Ferreira
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Entropy, 2023 An analytical solution is obtained for the problem of two interacting, identical but separated spin 1/2 particles in a time-dependent external magnetic field, in a general case. The solution involves isolating the pseudo-qutrit subsystem from a two-qubit
Yury Belousov +2 more
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Quantum theory of transition radiation and transition pair creation [PDF]
, 1998 Theory of the transition radiation and the transition pair creation is developed in the frame of QED. The spectral-angular distributions of probability of the transition radiation and of the transition pair creation are found.
Baier +13 more
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Ecology and Evolution, 2021 Understanding trade‐offs between demographic parameters is crucial when investigating community assembly rules in high‐diversity forests. To this end, we estimated mortality and growth parameters, and correlations among them, across entire size classes ...
Takashi Masaki +4 more
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A Physical Measure for Characterizing Crossover from Integrable to Chaotic Quantum Systems
Entropy, 2023 In this paper, a quantity that describes a response of a system’s eigenstates to a very small perturbation of physical relevance is studied as a measure for characterizing crossover from integrable to chaotic quantum systems.
Chenguang Y. Lyu, Wen-Ge Wang
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Transition probabilities in Gd III [PDF]
Astronomy & Astrophysics, 2002 Theoretical lifetimes, calculated with inclusion of core-polarization eects, have been determined for five 4f 7 6p levels of doubly ionized gadolinium. They agree quite well with recent experimental values measured by time-resolved laser- induced fluorescence spectroscopy.
Biémont, Emile +2 more
openaire +2 more sources
Gamma Limit for Transition Paths of Maximal Probability [PDF]
, 2011 Chemical reactions can be modelled via diffusion processes conditioned to make a transition between specified molecular configurations representing the state of the system before and after the chemical reaction.
Pinski, F., Stuart, A. M., Theil, F.
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Desimal, 2022 In this research, a Markov chain model was constructed from the conditions that might be experienced by the people during the Delta or Omicron variant of the COVID-19 pandemic.
Dwi Haryanto, Fida Fathiyah Addini
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Quantitative Studies for Cell-Division Cycle Control
Frontiers in Physiology, 2019 The cell-division cycle (CDC) is driven by cyclin-dependent kinases (CDKs). Mathematical models based on molecular networks, as revealed by molecular and genetic studies, have reproduced the oscillatory behavior of CDK activity.
Yukinobu Arata, Hiroaki Takagi
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Rabi Oscillations in Systems with Small Anharmonicity [PDF]
, 2004 When a two-level quantum system is irradiated with a microwave signal, in resonance with the energy difference between the levels, it starts Rabi oscillation between those states.
Barnett S. M., M. H. S. Amin
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