Janina Marciak-Kozlowska

Causal heat transport induced by zeptosecond laser pulses

The thermal phenomena induced by zeptosecond (10 m 21 s) laser pulses are discussed in this article. Considering the theoretical proposal of the lasetron , the Heaviside equation for heat transport on zeptosecond time scale is formulated. In the article, the modified Schrodinger equation (Janina Marciak-koz ^ owska and Miros ^ aw Koz ^ owski (2002). Lasers in Engineering , 12 , 53) for quantum phenomena on the zeptosecond time scale was also discussed.

Modified schrödinger equation for attosecond laser pulse interaction with matter

Recently the measurement of X-ray pulses approaching the attosecond frontier was published (M. Drescher et al ., Science 291 (2001) p. 1923). The attosecond laser pulse enables the study and control of the motion of electrons inside atoms. In this paper we develop and solve the modified Schrodinger equation (MSE) which describes the interaction of electrons with its surroundings in an atom. This interaction can be detected only using an attosecond laser pulse within the relaxation time of the interaction which is of the order of 10 attoseconds.

The time arrow in a Planck gas

In this paper the quantum heat transport equation (QHT) is applied to the study of thermal properties of Planck gas, i.e., a gas of massive particles with mass equal to the Planck massMP = (łc/G)1/2 and whose relaxation time equals the Planck timeτp = (łG/c5)1/2. The quantum of thermal energy for a Planck gas,EPlanck = 1019GeV, and the quantum thermal diffusion coefficientDPlanck = (ħG/c)1/2 are calculated. Within the framework of QHT the thermal phenomena in a Planck gas can be divided into two classes: for a time period shorter thanτp, the time reversal symmetry holds and for a time period longer thanτp, time symmetry is broken, i.e., a time arrow is created.

KLEIN-GORDON THERMAL EQUATION FOR A PLANCK GAS

In this paper the quantum hyperbolic equation formulated in our earlier paper [Found. Phys. Lett.10, 599 (1997)] is applied to the study of the propagation of the initial thermal state of the universe. It is shown that the propagation depends on the barrier height. The Planck wall potential is introduced,VP = ħ/8tP= 1.125 1018 GeV, wheretP is a Planck time. For the barrier heightV <VP, the master thermal equation isthe modified telegrapher’sequation, and for barrier heightV >VP the master equation is theKlein- Gordon equation. The solutions of both type equations for Cauchy boundary conditions are discussed.

The Smearing Out of the Thermal Initial Conditions Created in a Planck Era

In this paper the quantum heat transport in a Planck gas in the presence of the potential (other than the thermal one) is investigated. The new quantum heat transport equation which generalizes our potential-free QHT is developed. The thermal wave solution of QHT for a Planck gas is obtained and a condition for distortionless propagation of thermal wave is formulated. It is argued that the initial conditions of the Beginning (i.e., at t=0) are smeared in the time scale of the Planck time.

Discretization of the thermal excitation in highly excited matter

In this paper the thermal energy diffusion for quantum particles is described. The quantum heat transport equation is obtained. It is shown that, for a short-time thermal excitation (of the order of the relaxation time), the excited matter response is quantized on the different levels (atomic, nuclear, quark) with quantum thermal energy equalEatomic ∼9 eV,Enuclear ∼7 MeV, andEquark ∼139 MeV.

Consciousness, Riemann Zeta Function and Pre-Big Bang Scenario

In this paper we study the evolution of consciousness. Considering the discrete structure of time, we calculate the life-time of the Universe including the Pre-Big Bang epoch. Pre-Big Bang scenario deals with two branches described in low energy effective treatments. Both branches are string duality related but the former runs on negative time scales. In this paper we study (with the help of Riemann Zeta function) the negative time scenario in pre-beginning of the Universe. The beginning of the Universe is the beginning of consciousness. In that case the human consciousness started and evolved according to Zeta function

Possible thermal waves generation by Femtosecond TESLA Free Electron Laser (FEL)

In this paper the TESLA, free-electron laser (FEL) pulse interaction with matter is investigated. The hyperbolic heat transport equation and its solution are discussed. It is shown that as the result of the interaction, damped thermal waves of both types: undistorted and dispersed can be emitted.

Zero point field (ZPF) effects in the interaction of the ultra-short laser pulses with matter

In this article, the effects of zero-point energy (ZPE) on the heat transport induced by ultra-short laser pulses are investigated. It is shown that the existence of the zero-point energy in a physical vacuum influences the heat transport on an atomic level. The interaction of the building blocks of matter-atoms with the zero-point fields (ZPFs), which generate the ZPE guarantees the stability of matter. The interaction of the ultra-short laser pulses ( j t ¨ 1 as) with matter can be used as a source of information on the ZPF.