Moscow Institute of Electronics and Mathematics , MIEM — Russian higher educational institution in the field of electronics. Founded in 1962 as Moscow Institute of Electronic Machine Building. In 2011 joined with National Research University Higher School of Economics.Official Russian name — Московский государственный институт электроники и математики , МИЭМ. Wikipedia.
Schein L.B.,Independent Consultant |
Tyutnev A.,Moscow State Institute of Electronics and Mathematics
Journal of Physical Chemistry C | Year: 2011
The correlated disorder model (CDM) has been proposed as a theory of charge transport in molecularly doped polymers (MDPs). Recently a test of the CDM was proposed: it was predicted that the dipolar disorder energy can be obtained from the slope of the log of the mobility versus square root of the electric field (the Poole-Frenkel or PF slope). We find that the dipolar disorder energy obtained from the experimental PF slopes are almost always larger than the theoretical predictions, especially for MDPs made from dopants with low dipole moments. In addition, the theory relates the dipolar disorder energy to the temperature T 0 at which the electric field dependence of the mobility vanishes. We find that the observed T 0 does appear to increase as the dipolar disorder increases but is in quantitative agreement (within 25 K) with the theoretical predictions for only a limited set of the measurements. We conclude that it appears that the CDM needs further development to be consistent with charge transport in organic materials. © 2011 American Chemical Society.
Loubenets E.R.,Moscow State Institute of Electronics and Mathematics
Journal of Mathematical Physics | Year: 2015
We prove the existence for each Hilbert space of the two new quasi hidden variable (qHV) models, statistically noncontextual and context-invariant, reproducing all the von Neumann joint probabilities via non-negative values of real-valued measures and all the quantum product expectations-via the qHV (classical-like) average of the product of the corresponding random variables. In a context-invariant model, a quantum observable X can be represented by a variety of random variables satisfying the functional condition required in quantum foundations but each of these random variables equivalently models X under all joint von Neumann measurements, regardless of their contexts. The proved existence of this model negates the general opinion that, in terms of random variables, the Hilbert space description of all the joint von Neumann measurements for dim H ≥ 3 can be reproduced only contextually. The existence of a statistically noncontextual qHV model, in particular, implies that every N-partite quantum state admits a local quasi hidden variable model introduced in Loubenets [J. Math. Phys. 53, 022201 (2012)]. The new results of the present paper point also to the generality of the quasi-classical probability model proposed in Loubenets [J. Phys. A: Math. Theor. 45, 185306 (2012)]. © 2015 AIP Publishing LLC.
Loubenets E.R.,Moscow State Institute of Electronics and Mathematics
Journal of Physics A: Mathematical and Theoretical | Year: 2011
We introduce a general condition sufficient for the validity of the original Bell inequality (1964) in a local hidden variable (LHV) frame. This condition can be checked experimentally and incorporates only as a particular case the assumption on perfect correlations or anticorrelations usually argued for this inequality in the literature. Specifying this general condition for a quantum bipartite case, we introduce the whole class of bipartite quantum states, separable and nonseparable, that (i) admit an LHV description under any bipartite measurements with two settings per site; (ii) do not necessarily exhibit perfect correlations and may even have a negative correlation function if the same quantum observable is measured at both sites, but (iii) satisfy the 'perfect correlation' version of the original Bell inequality for any three bounded quantum observables A1, A2 = B1, B 2 at sites 'A' and 'B', respectively. Analysing the validity of this general LHV condition under classical and quantum correlation scenarios with the same physical context, we stress that, unlike the Clauser-Horne-Shimony-Holt inequality, the original Bell inequality distinguishes between classicality and quantum separability. © 2011 IOP Publishing Ltd.
Maslov V.P.,Moscow State Institute of Electronics and Mathematics
Russian Journal of Mathematical Physics | Year: 2013
In the first part of the paper, we introduce the concept of observable quantities associated with a macroinstrument measuring the density and temperature and with a microinstrument determining the radius of a molecule and its free path length, and also the relationship between these observable quantities. The concept of the number of degrees of freedom, which relates the observable quantities listed above, is generalized to the case of low temperatures. An analogy between the creation and annihilation operators for pairs (dimers) and the creation and annihilation operators for particles (molecules) is carried out. A generalization of the concept of a Bose condensate is introduced for classical molecules as an analog of an ideal liquid (without attraction). The negative pressure in the liquid is treated as holes (of exciton type) in the density of the Bose condensate. The phase transition gas-liquid is calculated for an ideal gas (without attraction). A comparison with experimental data is carried out. In the other part of the paper, we introduce the concept of new observable quantity, namely, of a pair (a dimer), as a result of attraction between nearest neighbors. We treat in a new way the concepts of Boyle temperature TB(as the temperature above which the dimers disappear) and of the critical temperature Tc(below which the trimers and clusters are formed). The equation for the Zeno line is interpreted as the relation describing the dependence of the temperature on the density at which the dimers disappear. We calculate the maximal density of the liquid and also the maximal density of the holes. The law of corresponding states is derived as a result of an observation by a macrodevice which cannot distinguish between molecules of distinct gases, and a comparison of theoretical and experimental data is carried out. © 2013 Pleiades Publishing, Ltd.
Magunov A.N.,Moscow State Institute of Electronics and Mathematics
Technical Physics | Year: 2010
The temperature of transparent gas flame (T ≈ 1900 K) is determined from the thermal radiation spectrum without using emittance data. The relation connecting the values of temperature calculated from the integrated spectrum of the entire glowing region of the flame with the maximal and arithmetic mean value is considered. Simulation is used to prove that the difference between the measured and maximal temperatures of a nonuniformly heated object in the Wien spectrum detection region does not exceed 10%. © 2010 Pleiades Publishing, Ltd.