Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Umirzakov, Ikhtier"'
We showed that the equations (3), (4), (5) and (6), used in the paper Total and fractional densities of states from caloric relations by S. F. Chekmarev and S. V. Krivov, Phys. Rev. E 57 2445 (1998), are incorrect, the data, presented in the paper by
Externí odkaz:
http://arxiv.org/abs/2001.10166
As known all physical properties of solids are described well by the system of quantum linear harmonic oscillators. It is shown in the present paper that the system consisting of classical linear harmonic oscillators having temperature dependent mass
Externí odkaz:
http://arxiv.org/abs/1906.07229
Autor:
Umirzakov, Ikhtier
It is shown that the energy spectrum of the pure vibrational levels of the molecule consisting of two atoms interacting with each other via the modified Rosen-Morse potential, the analytical expressions for the vibrational partition function and enth
Externí odkaz:
http://arxiv.org/abs/1902.06167
Autor:
Umirzakov, Ikhtier
It is shown that that the exact solution of the Schrodinger equation for the molecule consisting of two atoms interacting via improved Tietz potential, the analytical expressions for the energy of the rotational-vibrational levels, partition function
Externí odkaz:
http://arxiv.org/abs/1902.04989
Autor:
Umirzakov, Ikhtier
It is shown that: the analytical solution of the stationary Schrodinger equation for diatomic molecules with the shifted Tietz-Wei potential, which was reported in the paper Exact and Poisson summation thermodynamic properties for diatomic molecules
Externí odkaz:
http://arxiv.org/abs/1902.04977
Autor:
Umirzakov, Ikhtier H.
The closed-form expression for the quantum partition function of the improved Tietz oscillator is obtained using the Voronoi summation formula.
Externí odkaz:
http://arxiv.org/abs/1902.00704
Autor:
Umirzakov, Ikhtier
It is shown that the isochoric heat capacity of dense gas, fluid and liquid decreases with increasing temperature at arbitrary values of a density for many pair interaction potentials, including bonded potentials; that a decrease of the isochoric hea
Externí odkaz:
http://arxiv.org/abs/1901.09528
Autor:
Umirzakov, Ikhtier H.
It is shown that the existence of single critical point of the fluid described by van der Waals equation of state is not the hypothesis and it is the consequence of the thermodynamic conditions of liquid-vapor phase equilibrium. It is also shown that
Externí odkaz:
http://arxiv.org/abs/1705.08412
Autor:
Umirzakov, Ikhtier H.
It is shown that the proof of [1] that the specific heat of the system of classical point particles interacting with each other via uniform gravitational potential energy may be negative is incorrect.
Externí odkaz:
http://arxiv.org/abs/1705.00980
Autor:
Umirzakov, Ikhtier H.
It is shown that there is no proof of negativity of specific heat of the system placed in thermostat. It is proved that for the system of particles placed in the thermostat and interacting with each other via uniform potential energy the total energy
Externí odkaz:
http://arxiv.org/abs/1702.02228