Central European Journal of Physics
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Modification of the amorphous carbon films by the ns-laser irradiation
Central European Journal of Physics - Tập 9 - Trang 1344-1350 - 2011
The effect of a nanosecond laser irradiation of thin (60 and 145 nm) amorphous,
diamond-like carbon films deposited on Si substrate by an ion beam deposition
(IBD) from pure acetylene and acetylene/hydrogen (1:2) gas mixture was analyzed
in this work. The films were irradiated with the infrared (IR) and ultraviolet
(UV) radiation of the nanosecond Nd:YAG lasers working at the first (1.16 eV)
and t...
Solutions of the Schrödinger equation for Dirac delta decorated linear potential
Central European Journal of Physics - Tập 3 - Trang 303-323 - 2005
We have studied bound states of the Schrödinger equation for a linear potential
together with any finite number (P) of Dirac delta functions. Forx<-0, the
potential is given as where 0...
Critical properties of a random transverse crystal field Ising model with bond dilution
Central European Journal of Physics - Tập 9 - Trang 1084-1089 - 2011
Within effective field theory (EFT), the critical properties of a random
transverse crystal field Ising model with bond dilution are studied on a square
lattice. Under both weak and strong bond dilution conditions, we consider three
cases (α = 0,±0.5) of a transverse crystal field ratio, obtaining global phase
diagrams in T−D x space for changes in the random transverse crystal field
concentration...
Classical color fields as a dark matter candidate
Central European Journal of Physics - Tập 5 - Trang 342-350 - 2007
A model of Dark Matter is proposed where the Dark Matter is a classical color
field. The color fields are invisible as they may interact with colored
elementary particles like the ’t Hooft-Polyakov monopole only. Comparison with
the Universal Rotation Curve is carried out.
Non-coding RNAs and complex distributed genetic networks
Central European Journal of Physics - Tập 9 - Trang 909-918 - 2010
In eukaryotic cells, the mRNA-protein interplay can be dramatically influenced
by non-coding RNAs (ncRNAs). Although this new paradigm is now widely accepted,
an understanding of the effect of ncRNAs on complex genetic networks is lacking.
To clarify what may happen in this case, we propose a mean-field kinetic model
describing the influence of ncRNA on a complex genetic network with a
distributed...
Instability transitions and ensemble equivalence in diffusive flow
Central European Journal of Physics - Tập 7 - Trang 575-583 - 2009
We investigate the critical behavior of one-dimensional (1D) stochastic flow
with competing nonlocal and local hopping events, in context of the totally
asymmetric simple exclusion process (TASEP) with a defect site in a 1D closed
chain. The defect site can effectively generate various boundary conditions,
controlling the total number of particles in the system. Both open and
periodic-like setups ...
Time-dependent density functional theory molecular dynamics simulation of doubly charged uracil in gas phase
Central European Journal of Physics - Tập 12 - Trang 97-102 - 2014
We use time-dependent density functional theory and Born-Oppenheimer molecular
dynamics methods to investigate the fragmentation of doubly ionized uracil in
gas phase. Different initial electronic excited states of the dication are
obtained by removing electrons from different inner-shell orbitals of the
neutral species. We show that shape-equivalent orbitals lead to very different
fragmentation p...
The exclusive reaction of pion quasi-elastic knockout from nucleon p(e, e′ π)B to various states of the final baryon-spectator B and the quark models for the pion cloud of nucleon
Central European Journal of Physics - Tập 2 - Trang 511-522 - 2004
The pion momentum distributions (MDs) in four channels of virtual decay p→B+π, B
= N, Δ, N 1/2-(1535), N 1/2+(1440) are calculated in two models, the microscopic
model of 3 P 0 scalar q−q fluctuation with the pion as a composite q−q-system
and the chiral semi-microscopic model of πq interaction with the pion as a
structureless Goldstone boson. The results of the above models are similar for
the ba...
Complementarity and post-selection in an atomic double-slit interferometer
Central European Journal of Physics - Tập 11 - Trang 923-927 - 2013
This paper analyzes, theoretically, an atomic double-slit interferometer in
order to probe the extent to which complementary properties affect quantum
interference. It is shown that if the energy eigenstates of a two-level atom are
one-to-one correlated with its particle and wave behaviors, complementary
phenomena can be measured simultaneously, indicating a reinterpretation of the
complementarity...
First-principles studies of the electronic structure and optical properties of AgBO3 (B=Nb,Ta) in the paraelectric phase
Central European Journal of Physics - Tập 6 - Trang 730-736 - 2008
The electronic energy-band structure, density of states (DOS), and optical
properties of AgBO3 in the paraelectric cubic phase have been studied by using
density functional theory within the local density approximation for
exchange-correlation for the first time. The band structure shows a band gap of
1.533 eV (AgNbO3)and 1.537 eV (AgTaO3)at (M-⌈)point in the Brillouin zone. The
optical spectra of...
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