47 research outputs found
The Mirror Universes
In this paper we investigate the structure of the Mirror Universes. The two
universes are coupled with transformation t to -t. It is shown that for Planck
scale the oscillations of temperature of the universes are observed. For the
Mirror Universes the temperature fields are shifted in phase.
Key words: Gravity; Universe temperature; Oscillation of temperature.Comment: 2 pages, 2 figure
Quantum Cattaneo wave equation for ultra-short laser pulses interaction with electron and nucleon gases
In this paper the quantum Cattaneo wave equation for ultra-short laser pulses
interaction with medium is obtained . The explicit formulae for electron and
nucleon gases are presentedComment: 10 pg
Anthropic calculation of the velocity and acceleration of the space-time
In this paper considering quantum heat transport equation (QHT) formulated in
our earlier papers the temperature for universes with G < 0 is calculated. As
the solution of complex QHT (Schrodinger type equation), the temperature is
complex also. We argue that due to anthropic limitation of the observer
ImT(r,t)=0 From this condition the discretization of space-time radius R,
velocity of the universe expansion v, Hubble parameter H and acceleration of
the expansion a are calculated. The agreement with observational data for our
Universe is quite good. PACS 98.62.Py PACS 98.80.Bp PACS 98.80.CqComment: 7pg
On the hyperbolic Pennes equation description of the heat pulse-human cornea interaction
In this paper laser heating of human cornea is investigated. The new heat
transport equation in cornea -hyperbolic Pennes equation is formulated and
solved. It is shown that for ultra-short laser pulses the thermal energy
propagates with finite velocity whereas for parabolic Pennes equation velocity
is infiniteComment: 20 pgs 8 figs. arXiv admin note: substantial text overlap with
arXiv:0805.0436, arXiv:0706.0011, and with gr-qc/0111112 and
arXiv:gr-qc/0102026 by other authors without attributio
Sub- and Supersonic Heat Motion Induced by Femtosecond Laser Pulses
In this paper the superheating of electron plasma by femtosecond laser pulses
is investigated. With Heaviside thermal equation (Lasers in Engineering, 12,
(2002), p.17) the generation of superhot electrons is described. It is shown
that in hot electron plasma (i.e. with electron energies >5MeV) the thermal
shock waves can be generated. Key words: Femtosecond laser pulses; Hot electron
plasma; Shock thermal waves.Comment: 11 pages, 11 figure
Nanoscience with Attosecond Laser Pulses
In this paper the interaction of attosecond laser pulses with matter is
investigated. The scattering and potential motion of heat carriers as well as
the external force are considered. Depending on the ratio of the scatterings
and potential motion the heat transport is described by the thermal forced
Klein-Gordon or thermal modified telegraph equation. For thermal Heisenberg
type relation V tau=hbar (tau is the relaxation time and V is the potential)
the heat transport is described by the thermal distortionless damped wave
equation. In this paper Klein-Gordon modified telegraph equation and wave
equation are solved. Key words: Attosecond laser pulses; Quantum heat transport
equation; Klein-Gordon thermal equation.Comment: 10 page
Fourier Diffusion and Special Relativity in Nanotechnology
In this paper the transport phenomena in On-Chip-Transmission Line are
investigated . The transport equation are developed and solved. The near light
speed phenomena in OCTL are investigated Key words: On-chip transmission line,
transport phenomena, near light speed phenomenaComment: 10 page
The Green function for thermal waves induced by attosecond laser pulses in one and three dimensions
In this paper the solution of the hyperbolic Klein-Gordon thermal equation
are obtained and discussed. The analytical form of the solution - Green
functions are calculated for one and three dimensional cases. It is shown that
only in three dimensional case the undisturbed, with one value of the velocity,
thermal wave can be generated by attosecond laser pulses. The conductivity for
the space-time inside the atom is calculated and the value sigma_0=10^6
1/(Omega m) is obtained.
Key words: Attosecond laser pulses; Klein-Gordon equation; Green functions.Comment: 8 page
Thermal processes generated in quark-gluon plasma by yoctosecond laser pulses
In this paper the thermal processes generated by yoctosecond (10-24 s) laser
pulses in QGP are investigated. Considering that the relaxation time in QGP is
of the order of 1 ys it is shown that in QGP the yoctosecond laser pulses can
generate the thermal waves with velocity v = c (0.3 fm/ys).
Key words: QGP, thermal waves, yoctosecond pulsesComment: 12pg
Weyl equation for temperature fields induced by attosecond laser pulses
In this paper the Weyl equation for temperature field induced by laser beam
interaction with matter is proposed and solved. Depending on the scattering
mechanism the temperature field oscillate or is damped.
Key words: Thermal processes, Weyl equationComment: 9 page