Book
Сборник задач по курсу физики
We show that every output state of a phase insensitive bosonic Gaussian channel is majorized by the output of the channel applied to an arbitrary coherent state. The proof is based on the optimality of coherent states for the minimization of strictly concave output functionals. Moreover we show that coherent states are the unique optimizers.
A vocationally-oriented course on Physics with medico-biological direction is proposed in this book. The matters of application of physical methods for substances investigation are considered here in detail.
The book may ne helpful for students of medical and pharmaceutical institutes of higher education and colleges, chemical, biological and pharmaceutical faculties of universities, as well as for students of core classes and teachers of medico-biological specialties.
Educational laboratory complex was designed for studying the subject general physics section "Electricity" and the introduction to the basics of the electrical engineering in 9-11 classes of secondary and special educational institutions.
The author applied the decomposition method LMDI to investigate the factors that influences the energy intensity of power generation in Russia. The analysis allows to determine the connection between energy intensity of power generation and both technical and structural changes in electricity and heat production.
A combination of three LHCb measurements of the CKM angle $\gamma$ is presented. The decays $B^\pm\to DK^\pm$ and $B^\pm\to D\pi^\pm$ are used, where $D$ denotes an admixture of $D^0$ and $\overline{D^0}$ mesons, decaying into $K^+K^-$, $\pi^+\pi^-$, $K^\pm \pi^\mp$, $K^\pm \pi^\mp \pi^\pm \pi^\mp$, $K_S\pi^+\pi^-$, or $K_S K^+K^-$ final states. All measurements use a dataset corresponding to 1.0 fb$^{-1}$ of data. Combining results from $B^\pm\to DK^\pm$ decays alone a best-fit value of $\gamma = 72.0^\circ$ is found, and confidence intervals are set \begin{align*} \gamma \in [56.4,86.7]^\circ \quad &{\rm at\ 68\%\,CL}\,,\\ \gamma \in [42.6,99.6]^\circ \quad &{\rm at\ 95\%\,CL}\,. \end{align*} The best-fit value of $\gamma$ found from a combination of results from $B^\pm\to D\pi^\pm$ decays alone, is $\gamma = 18.9^\circ$, and the confidence intervals \begin{align*} \gamma \in [7.4,99.2]^\circ \quad \cup \quad [167.9,176.4]^\circ \quad &{\rm at\ 68\%\,CL}\, \end{align*} are set, without constraint at $95\%$ CL. The combination of results from $B^\pm\to DK^\pm$ and $B^\pm\to D\pi^\pm$ decays gives a best-fit value of $\gamma = 72.6^\circ$ and the confidence intervals \begin{align*} \gamma \in [55.4,82.3]^\circ \quad &{\rm at\ 68\%\,CL}\,,\\ \gamma \in [40.2,92.7]^\circ \quad &{\rm at\ 95\%\,CL}\, \end{align*} are set. All values are expressed modulo $180^\circ$, and are obtained taking into account the effect of $D^0$--$\overline{D^0}$ mixing.
The dynamics of a two-component Davydov-Scott (DS) soliton with a small mismatch of the initial location or velocity of the high-frequency (HF) component was investigated within the framework of the Zakharov-type system of two coupled equations for the HF and low-frequency (LF) fields. In this system, the HF field is described by the linear Schrödinger equation with the potential generated by the LF component varying in time and space. The LF component in this system is described by the Korteweg-de Vries equation with a term of quadratic influence of the HF field on the LF field. The frequency of the DS soliton`s component oscillation was found analytically using the balance equation. The perturbed DS soliton was shown to be stable. The analytical results were confirmed by numerical simulations.
Radiation conditions are described for various space regions, radiation-induced effects in spacecraft materials and equipment components are considered and information on theoretical, computational, and experimental methods for studying radiation effects are presented. The peculiarities of radiation effects on nanostructures and some problems related to modeling and radiation testing of such structures are considered.