Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Kalaga, J. K."'
We analysed the dynamics of the positively charged ions of diatomic molecules (${\rm X_{2}^{+}}$ and ${\rm XY^{+}}$), in which the bond is realised by the single electron. We assumed that the atomic cores separated by the distance $R$ were subjected
Externí odkaz:
http://arxiv.org/abs/1909.12048
The superconducting state in vanadium characterizes with the critical temperature ($T_{c}$) equal to $5.3$~K. The Coulomb pseudopotential, calculated with the help of the Eliashberg equations, possesses anomalously high value $\mu^{\star}\left(3\Omeg
Externí odkaz:
http://arxiv.org/abs/1707.08228
Quantum correlations and entanglement in a model comprised of a short chain of nonlinear oscillators
Publikováno v:
Phys. Rev. A94, 032304 (2016)
We discuss a model comprised of a chain of three Kerr-like nonlinear oscillators pumped by two modes of external coherent field. We show that the system can be treated as nonlinear quantum scissors and behave as a three-qubit model. For such situatio
Externí odkaz:
http://arxiv.org/abs/1611.01334
Autor:
KALAGA, J. K.1 j.kalaga@if.uz.zgora.pl
Publikováno v:
Acta Physica Polonica: A. Nov2023, Vol. 144 Issue 5, p289-291. 3p.
Publikováno v:
Physics Letters A 376 (2012) 1280-1286
We discuss a system of a nonlinear Kerr-like oscillator externally pumped by ultra-short, external, coherent pulses. For such a system, we analyse the application of the Kullback-Leibler quantum divergence $K[\rho||\sigma]$ to the detection of quantu
Externí odkaz:
http://arxiv.org/abs/1203.6774
Publikováno v:
Phys. Rev. E 78, 066219 (2008)
We propose a Wigner function based parameter that can be used as an indicator of quantum chaos. This parameter is defined as "entropy" from the time-dependence of "non-classicallity" proposed in \cite{KZ04}. We perform our considerations for the syst
Externí odkaz:
http://arxiv.org/abs/0905.4638
Publikováno v:
Physics Letters A373 (2009) 1334
We deal with a system comprising a nonlinear (Kerr-like) oscillator excited by a series of ultra-short external pulses. We introduce the fidelity-based entropic parameter that can be used as an indicator of quantum chaos. Moreover, we propose to use
Externí odkaz:
http://arxiv.org/abs/0905.4646
Autor:
NOWOTARSKI, M.1 m.nowotarski@if.uz.zgora.pl, KALAGA, J. K.1,2
Publikováno v:
Acta Physica Polonica: A. May2021, Vol. 139 Issue 5, p610-612. 3p.
Publikováno v:
Acta Physica Polonica: A. May2021, Vol. 139 Issue 5, p532-534. 3p.
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