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Tytuł:
Violation of Bell-CHSH & CH Inequalities by Superposition of Two Coherent States (π/2 Out of Phase)
Autorzy:
Kumar Mishra, D.
Powiązania:
https://bibliotekanauki.pl/articles/1400190.pdf
Data publikacji:
2013-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
03.65.Ud
03.67.Mn
42.50.Dv
42.50.-p
Opis:
We study the tests of the Bell-CHSH & CH inequalities by superposition of two coherent states (ı/2 out of phase), a class of non-Gaussian state, using photon parity and on/off measurements. Large violations of the Bell-type inequalities have been observed theoretically confirming the interpretation and validity of quantum mechanics against the local-realistic theories.
Źródło:
Acta Physica Polonica A; 2013, 123, 1; 21-24
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of combined therapy (TENS+UD) and postisometric relaxation (PIR) of muscles in seniors with degenerative disease of the hip joint
Autorzy:
Podczarska-Głowacka, Magdalena
Łysak, Anna
Powiązania:
https://bibliotekanauki.pl/articles/972411.pdf
Data publikacji:
2016
Wydawca:
Instytut Medycyny Wsi
Tematy:
degenerative changes of the hip joint
postisometric relaxation of muscles
mobility of the
hip joint
pain syndromes
combindes therapy (TENS+UD)
Opis:
Objective. The aim of the study was to assess the effectiveness of a combined therapy (TENS+UD) and postisometric relaxation of muscles in a 3-week therapeutic programme directed to seniors with diagnosed degenerative disease of the hip joint (OA). Materials and method. The study involved patients with diagnosed degenerative disease of the hip joint. A total of 60 people – 11 men and 49 women (mean age – 68 years) were examined. The therapy was applied for a period of 3 weeks. Seniors were randomly divided into 2 equal groups. In Group I, the treatment programme included a combined therapy (TENS+UD) and individual exercises, i.e. postisometric relaxation of muscles (PIR) at the hip joint; in Group II, seniors were treated with individual exercises, i.e. postisometric relaxation of muscles (PIR). Results. The study showed that the applied therapeutic programme had a significant effect. In both groups an improvement in mobility after the therapy was shown in all planes of movement. It was also found that the therapy proved effective in fighting pain syndromes. However, it should be noted that after assessing pain twice (VAS, Laitinen Scale) in Group I, the therapy proved to be more effective in fighting pain in comparison to Group II. Conclusions. In non-invasive treatment, in order to increase the analgesic activity in patients with degenerative changes of the hip joint, it is also recommended to include a physical stimulus in the form of combined therapy in the physiotherapeutic procedure, comprising techniques of energising muscles.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2016, 10, 2; 95-99
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tunable Entanglement Sudden Death and Birth in Cavity QED with Nonlinear Kerr-Like Medium
Autorzy:
He, Q.
Xu, J.
Powiązania:
https://bibliotekanauki.pl/articles/1493398.pdf
Data publikacji:
2011-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
03.65.Ud
03.67.-a
03.67.Mn
Opis:
The influence of nonlinear Kerr-like medium on the phenomenon of entanglement sudden death and birth in a double Jaynes-Cummings model is investigated. It is shown that the entanglement sudden death and birth phenomenon may appear in this system and the duration of entanglement sudden death and birth can be controlled by the nonlinear Kerr-like medium. Particularly, the phenomenon of entanglement sudden death and birth disappears one after another if we increase the value of the Kerr coefficient χ continuously, and all disappears if the value of the Kerr coefficient χ is large enough.
Źródło:
Acta Physica Polonica A; 2011, 120, 3; 390-396
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tsallis Entropies of Superposition States οf Two Photon-Subtracted SU(1,1) Coherent States and Entanglement Transfer to Qubits
Autorzy:
Liang, Mai-Lin
Yuan, Bing
Zhang, Jia-Nan
Powiązania:
https://bibliotekanauki.pl/articles/1584983.pdf
Data publikacji:
2009-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.50.Dv
03.65.Ud
05.70.-a
Opis:
Entropy properties of the superposed photon-subtracted two-mode coherent states are quite different from that of the single state. Tsallis entropies of the superposed states have extreme values, while that of the single state change monotonously. Further, it is found that the positions of the maxima of the entropies are independent of the entropic index. Around the maxima of the entropies, the entanglement transfer from the superposed states to two initially separable qubits is nearly complete.
Źródło:
Acta Physica Polonica A; 2009, 116, 6; 1006-1010
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The UD RLS Algorithm for Training Feedforward Neural Networks
Autorzy:
Bilski, J.
Powiązania:
https://bibliotekanauki.pl/articles/908480.pdf
Data publikacji:
2005
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
sieć neuronowa
algorytm uczenia
metoda najmniejszych kwadratów
neural networks
learning algorithms
recursive least squares method
UD factorization
Opis:
A new algorithm for training feedforward multilayer neural networks is proposed. It is based on recursive least squares procedures and U-D factorization, which is a well-known technique in filter theory. It will be shown that due to the U-D factorization method, our algorithm requires fewer computations than the classical RLS applied to feedforward multilayer neural network training.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2005, 15, 1; 115-123
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The in-out spatial relation as conceptualized and verbalized by Danish Directional Adverbs and their equivalents in Polish
Autorzy:
Kacprzak, Aleksander
Powiązania:
https://bibliotekanauki.pl/articles/1154925.pdf
Data publikacji:
2018-12-15
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
danske retningsadverbier
ind-ud relation
konceptualisering af rummelige relationer
danske prædikater
polske præfikser
in-out relation
danish directional adverbs
danish predicates
polish prefixes
conceptualization of space
Opis:
The present paper aims to investigate and compare the conceptualization and verbalization of the in-out relation in Danish and Polish. The introductory paragraphs focus on the differences in the distribution of content in Polish and Danish employing Leonard Talmy’s typological classification of languages into verb-framed and satellite-framed, and provide information about Danish Directional Adverbs which are believed to be the key to understanding spatial relations in Danish. The analysis in the following paragraph reveals similarities and differences in the perception of the in-out relation through image schemas such as container and center-periphery. The analysis of the center-periphery image schema in Danish reveals that there is often a presupposed reference point in situations where the directional adverb does not refer to the in-out relation denoted by the prepositional phrase, which leads to a description of the general structure of this image schema in the last part of the article.
Źródło:
Folia Scandinavica Posnaniensia; 2018, 25; 41-58
1230-4786
2299-6885
Pojawia się w:
Folia Scandinavica Posnaniensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Green Function Variational Approximation: Significance of Physical Constraints
Autorzy:
Bieniasz, K.
Berciu, M.
Oleś, A.
Powiązania:
https://bibliotekanauki.pl/articles/1398655.pdf
Data publikacji:
2016-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.25.Dk
03.65.Ud
75.10.Lp
79.60.-i
Opis:
We present a calculation of the spectral properties of a single charge doped at a Cu(3d) site of the Cu-F plane in KCuF₃. The problem is treated by generating the equations of motion for the Green function by means of subsequent Dyson expansions and solving the resulting set of equations. This method, dubbed the variational approximation, is both very dependable and flexible, since it is a systematic expansion with precise control over elementary physical processes. It allows for deep insight into the underlying physics of polaron formation as well as for inclusion of many physical constraints, such as excluding crossing diagrams and double occupation constraint, which are not included in the self-consistent Born approximation. Here we examine the role and importance of such constraints by analyzing various spectral functions obtained in second order variational approximation.
Źródło:
Acta Physica Polonica A; 2016, 130, 2; 659-663
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Field Changing on Two Qubit Entanglement with Different Criteria
Autorzy:
Mirzaee, M.
Batavani, M.
Powiązania:
https://bibliotekanauki.pl/articles/1398634.pdf
Data publikacji:
2015-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
03.65.Ud
Opis:
We investigate the effect of field changing on two qubit entanglement. We choose the coherent state, the cat state and the squeezed state as different states of interacting field with atom. The correlation between two qubits can be degraded by environmental noise, this phenomenon has been labelled sudden death of entanglement. The double Jaynes-Cummings model as a solvable model is used for describing the dynamic of sudden death of entanglement. We measure two-qubit entanglement using the concurrence and the negativity. The Fisher information is introduced, too, and compares results with previous entanglement measures. Finally we conclude that the Fisher information is not an entanglement measure.
Źródło:
Acta Physica Polonica A; 2015, 127, 3; 663-668
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Control of Entanglement in a Damped Jaynes-Cummings Model by Transient Effects
Autorzy:
Kayhan, H.
Powiązania:
https://bibliotekanauki.pl/articles/1401862.pdf
Data publikacji:
2015-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
03.65.Ud
42.50.Ct
03.65.Yz
Opis:
In this work, we study the entanglement dynamics of the damped Jaynes-Cummings model with the transient effects modeled as the linear sweep of the coupling coefficient between the atom and the field. We show that the decoherence of the entanglement can be controlled by the transient effects under the influence of damping. These effects can accelerate and can decelerate the decoherence of the entanglement during the time-evolution of the system, by adjusting the frequency of the Rabi oscillations.
Źródło:
Acta Physica Polonica A; 2015, 128, 3; 256-258
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
T-80UD i T-84 oraz mniej znane „bestie” z Charkowa
Autorzy:
Ratka, Damian.
Powiązania:
Nowa Technika Wojskowa 2020, nr 12, s. 6-13
Data publikacji:
2020
Tematy:
Wozy bojowe
Czołgi
T-80U (czołg)
T-80UD (czołg)
T-84 (czołg)
BTMP-84 (czołg)
BREM-84 Atlet (wóz zabezpieczenia technicznego)
Budowa i konstrukcje
Dane taktyczno-techniczne sprzętu wojskowego
Uzbrojenie (wojsk.)
Napęd
Artykuł z czasopisma wojskowego
Opis:
Artykuł dotyczy czołgów z rodziny T-80 produkowanych w ukraińskich zakładach im. Małyszewa w Charkowie. W tekście przybliżono takie konstrukcje jak T80U, T-80UD, T-84U Opłot, T84BM Opłot-M oraz T-84-120 Jatagan. Omówiono budowę, dane taktyczno-techniczne, pancerz, uzbrojenie oraz napęd tych czołgów. Przedstawiono projekt hybrydy czołgu i bojowego wozu piechoty BTMP-84 oraz wozu zabezpieczenia technicznego BREM-84 Atlet.
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
System Size Dependence of Entanglement in Quantum One-Dimensional Models
Autorzy:
Jakubczyk, D.
Jakubczyk, P.
Powiązania:
https://bibliotekanauki.pl/articles/1032462.pdf
Data publikacji:
2017-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
03.67.Bg
03.67.Lx
03.65.Ud
Opis:
We show that entanglement in one-dimensional spin and electron systems, with one excitation, depends only on the system size and has very simple form in both multipartite and bipartite case. Regarding the multipartite case, we present very simple expressions for global entanglement and N-concurrence, and show that they are mutually related. In the bipartite case, we give expressions for I-concurrence and negativity, and show that they are also dependent on each other.
Źródło:
Acta Physica Polonica A; 2017, 132, 1; 158-160
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spin-Orbital Liquid on a Triangular Lattice
Autorzy:
Oleś, A.
Chaloupka, J.
Powiązania:
https://bibliotekanauki.pl/articles/1426711.pdf
Data publikacji:
2012-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.10.Kt
03.65.Ud
64.70.Tg
75.10.Jm
Opis:
Using Lanczos exact diagonalization of finite clusters we demonstrate that the spin-orbital $d^1$ model for triply degenerate $t_{2g}$ orbitals on a triangular lattice provides an example of a spin-orbital liquid ground state. We also show that the spin-orbital liquid involves entangled valence bond states which violate the Goodenough-Kanamori rules, and modify effective spin exchange constants.
Źródło:
Acta Physica Polonica A; 2012, 121, 5-6; 1026-1028
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some New Approaches of the XXX Heisenberg Model of the Two-Magnon Sector
Autorzy:
Łabuz, M.
Milewski, J.
Lulek, T.
Powiązania:
https://bibliotekanauki.pl/articles/1030760.pdf
Data publikacji:
2018-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.10.Jm
03.65.Fd
03.67.Lx
02.10.Ud
02.10.De
Opis:
XXX Heisenberg s-1/2 model has been examined in detail during last decades, however, recently one may find some new insights into that issue. Among several approaches describing the eigenproblem for the finite case, a close look into the structure of Bethe equations (BE) for the two-magnon sector case seems to be particularly interesting. BE enable us to evaluate parameters labeling eigenstates of a magnet, however to find appropriate sets of winding numbers, which parametrize BE, one has to apply the Inverse Bethe Ansatz method. On the other hand, one may choose a different - combinatoric approach - which also parametrizes Bethe eigenstates, with the use of rigging numbers describing string configurations. We present an idea of comparison of the concepts mentioned above for the particular case of two-spin deviations sector.
Źródło:
Acta Physica Polonica A; 2018, 133, 3; 444-446
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some Examples of Post-Measurement Nonlocal Gates
Autorzy:
Song, D.
Powiązania:
https://bibliotekanauki.pl/articles/1489820.pdf
Data publikacji:
2012-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
03.67.Lx
03.65.Ud
Opis:
Several proposed quantum computer models include measurement processes, in order to implement nonlocal gates and create necessary entanglement resources during the computation. We discuss some examples in which the measurements can be delayed for two- and three-qubit nonlocal gates. We also discuss implementing arbitrary nonlocal gates when measurements are included during the process.
Źródło:
Acta Physica Polonica A; 2012, 121, 3; 589-591
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Remarks on Entanglement, its Sources and Applications
Autorzy:
Żukowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/2030287.pdf
Data publikacji:
2002-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
03.65.Ud
03.67.-a
42.50.Ar
Opis:
We shall discuss the central role played in the quantum information theory by entanglement. A generalized version of Bell's theorem will be presented, as well as methods in multiphoton interferometry to obtain correlations violating the Bell inequalities. Finally, we shall present some quantum informational applications of entanglement.
Źródło:
Acta Physica Polonica A; 2002, 101, 1; 21-35
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 40

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