One-Photon Absorption of Polarized Radiation in Р-Te (Accounting for the Coherent Saturation Effect)

Russian Physics Journal - The spectral and temperature dependences of the one-photon absorption coefficient of polarized radiation are calculated and the linear-circular dichroism in p-type...     

On Shirokov's “One New Effect of the Einsteinian theory of Gravitation”

In this note we study M.F. Shirokov's One New Effect of Einstein's theory of Gravitation in the Kerr field. We confine ourselves to a circular trajectory (r=const) in the plane=/2. In the limit that terms of the second order and higher ina/r (a is the angular momentum per unit mass) are negligible we find an additional shift betweenT andT _r (orT ) of amount –(8a/r)(m/r) ^3/2. Thus vibrations lie further behindr(or) vibrations in this case than in the Schwarzschild field.     

New Application of a Known Molecule: Rhodamine B 8-hydroxy-2-quinolinecarboxaldehyde Schiff Base as a Colorimetric and Fluorescent “Off-On” Probe for Copper (II)

Rhodamine B 8-hydroxy-2-quinolinecarboxaldehyde Schiff base (1) has been investigated as a colorimetric and fluorescent “off-on” probe for the recognition of Cu²⁺ in aqueous solution. Probe 1 was synthesized by condensation of rhodamine B hydrazide and 8-hydroxy-2-quinolinecarboxaldehyde, which exhibited good selectivity for Cu²⁺ among a range of biologically and environmentally important metal ions. The Cu²⁺ recognition event undergoes a Cu²⁺ promoted hydrolysis of probe 1 to release rhodamine B and the recognition process is barely interfered by other coexisting metal ions.

Cr-Containing Ferromagnetic Film–Topological Insulator Heterostructures as Promising Materials for the Quantum Anomalous Hall Effect

JETP Letters - We study the statistical correlation functions for the three-dimensional hydrodynamic turbulence onset when the dynamics is dominated by the pancake-like high-vorticity structures....     

New Coordinates for the Evaporating Vaidya Black Hole

Drawbacks of the ingoing Eddington-Finkelstein coordinates in describing the quantum thermal properties of the evaporating Vaidya black hole are presented. A new coordinate system we proposed previously [Acta Phys. Sin. 46 （1997） 1273] is employed. In this new coordinate system, the thermal radiation temperature of the Vaidya black hole is discussed again with the back reaction method.     

Z boson as “the standard candle” for high-precision W boson physics at LHC

In this paper we propose a strategy for measuring the inclusive W boson production processes at LHC. This strategy exploits simultaneously the unique flexibility of the LHC collider in running variable beam particle species at variable beam energies, and the configuration flexibility of the LHC detectors. We propose their concrete settings for a precision measurement of the standard model parameters. These dedicated settings optimise the use of the Z boson and Drell–Yan-pair production processes as “the standard reference candles”. The presented strategy allows one to factorise and to directly measure those of the QCD effects that affect differently the W and Z production processes. It reduces to a level of the impact of uncertainties in the partonic distribution functions (PDFs) and in the transverse momentum of the quarks on the measurement precision. Last but not the least, it reduces by a factor of 10 the impact of systematic measurement errors, such as the energy scale and the measurement resolution, on the W boson production observables.     

A New Interlock Design for the TESLA RF System

The RF system for TESLA requires a comprehensive interlock system.Usually interlock systems are organized in a hierarchical way,In order to react to different fault conditions in a fast and flexible manner a nonhierarchical organization seems to be the better solution ,At the TESLA Test Facility (TTF) at DESY we will install a nonhierarchical interlock system that is based on user desgned reprogrammable gate-arrays (FPGA‘s) which incorporate an embedded microcontroller system.This system could beused later for the TESLA linear collider replacing a strictly hierarchical design.     

New Vacuum State of the Electromagnetic Field-Matter Coupling System and the Physical Interpretation of Casimir Effect

A new concise method is presented for the calculation of the ground-state energy of the electromagnetic field and matter field interacting system. With the assumption of squeezed-like state, a new vacuum state is obtained for the interacting system. The energy of the new vacuum state is lower than that given by the second-order perturbation theory in existing theories. In our theory, the Uasimir effect is attributed neither to the quantum fluctuation in the zero-point energy of the genuine electromagnetic field nor to that in the zero-point energy of the genuine matter field, but to that in the vacuum state of the interacting system. Both electromagnetic field and matter field are responsible for the Casimir effect.     

Technique for Setting Limits on the Coupling Constants of the Effective Theory from Electroweak Zγ Production at the Conditions of Run-2 of the ATLAS Experiment

Physics of Atomic Nuclei - Tests for deviation from the Standard Model (SM) are guided by its apparent incompleteness and by pursuit of creation of a more general theory of elementary particles. We...     

New Formulas for the Eigenfunctions of the Two-Particle Difference Calogero–Moser System

We present a new proof of the integrability of the DDPT-I equation. The DDPT-I equation represents a functional-difference deformation of the well-known Darboux–Pöschl–Teller equation. The proof is based on some formula for special Casorati determinants established in the paper. This formula provides some new representation for the DDPT-I potentials and for the general solution for the DDPT-I equation. It allows also a very easy computation of the action of the difference KdV flow on the DDPT-I initial data. In other words we obtain the new formulas for the eigenfunctions of the Hamiltonians of the two-particle difference BC ₁ Calogero–Moser system also known as quantum relativistic Calogero–Moser, (QRCM), system.     

A New Loop Algebra and the Corresponding Computing Formula of Constant γ in the Quadratic-Form Identity, as Well as the Generalized Burgers Hierarchy

A new loop algebra containing four arbitrary constants is presented, and the corresponding computing formula of constant γ in the quadratic-form identity is obtained in this paper, which can be reduced to computing formula of constant γ in the trace identity. As application, a new Liouville integrable hierarchy which possess bi-Hamiltonian structure and generalized Burgers hierarchy are derived.     

Formulation of the Hellmann–Feynman theorem for the “second choice” version of Tsallis’ thermostatistics

An approach to formulating the Hellmann–Feynman theorem within the “second choice” formalism of non-extensive statistical mechanics is considered. For the state of thermal equilibrium, we derive a relation of Hellmann–Feynman type between the derivative of the non-extensive free energy with respect to the external parameter and the quantum statistical q$q$-average of the derivative of the Hamilton operator. We also give a proper extension for an arbitrary observable commuting with the Hamiltonian. Some reasons for the usefulness of new formulas are discussed.     

Thermodynamic Analysis of the New Adsorption Cycle “HeCol” for Ambient Heat Upgrading: Ideal Heat Transfer

Thermodynamic analysis of a new adsorption cycle recently suggested for upgrading ambient heat (the so-called “Heat from Cold” or HeCol cycle) was performed. The energy and entropy balances at each cycle stage and in each converter component were calculated for the methanol–AC-35.4 activated carbon working pair under conditions of ideal heat transfer. It is shown that useful heat can be obtained only if the ambient temperature is below a threshold temperature. The threshold temperature was calculated based on the Polanyi principle of temperature invariance and was experimentally validated. The specific useful heat can reach 200–300 J/(g adsorbent), which is of practical interest. The use of adsorbents with an abrupt change in the adsorption uptake between boundary isosters of the cycle may lead to further enhancement of the useful heat. For the HeCol cycle, the exergy losses under the conditions of ideal heat transfer are small. At low ambient temperature, the losses in the evaporator, condenser, and adsorber are comparable, whereas at higher ambient temperature the main exergy losses originate from the adsorber heating and cooling.     

New trends in the development of “active correlations” technique

With reaching extremely high intensities of heavy-ion beams, new requirements for the detection system of the Dubna Gas-Filled Recoil Separator (DGFRS) will definitely be set. One of the challenges is how to apply the “active correlations” method [1–6] to suppress beam associated background products without significant losses in the whole long-term experiment efficiency value. Different scenarios and equations for the development of a method according to this requirement are under consideration in the present paper.     

Nonuniqueness of the “physical” acceleration for the Lorentz-Dirac equation

The Lorentz-Dirac equation is analyzed for the case of a charged particle injected into a step-function electric field of finite extent. It is shown that for small exit velocities, the relation between entrance and exit velocities is inverted in the sense that the larger the entrance velocity, the smaller the exit velocity. As a consequence, some entrance velocities can yield at least two distinct exit velocities. Numerical evidence bearing on the possibility of experimentally detecting this dichotomy is presented.