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Wyświetlanie 1-10 z 20
Tytuł:
Zero-point thermal noise in resistors? A conclusion
Autorzy:
Kish, Laszlo B.
Powiązania:
https://bibliotekanauki.pl/articles/220951.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Fluctuation Dissipation Theorem
resistors and fermionic versus bosonic systems
time-energy uncertainty principle versus location-momentum uncertainty principle
Opis:
The main points of the UPoN-2018 talk and some valuable comments from the Audience are briefly summarized. The talk surveyed the major issues with the notion of zero-point thermal noise in resistors and its visibility; moreover it gave some new arguments. The new arguments support the old view of Kleen that the known measurement data “showing” zero-point Johnson noise are instrumental artifacts caused by the energy-time uncertainty principle. We pointed out that, during the spectral analysis of blackbody radiation, another uncertainty principle is relevant, that is, the location-momentum uncertainty principle that causes only the widening of spectral lines instead of the zero-point noise artifact. This is the reason why the Planck formula is correctly confirmed by the blackbody radiation experiments. Finally a conjecture about the zero-point noise spectrum of wide-band amplifiers is shown, but that is yet to be tested experimentally.
Źródło:
Metrology and Measurement Systems; 2019, 26, 1; 3-11
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Introduce of Generalized Uncertainty Principle
Autorzy:
Sadatian, S. D.
Powiązania:
https://bibliotekanauki.pl/articles/412014.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Quantum Gravity
Uncertainty principle
Symmetry Breaking
Poincare alghebra
Opis:
We study and explain the uncertainty principle. We've discussed how to reform the uncertainty principle. In this regards, we have used the mechanisms of noncommutative algebra for obtain a generalized uncertainty principle. Following, Due to modified relationship uncertainty, we consider some application of these relation.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 20, 1; 10-20
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Algebraic division by zero implemented as quasigeometric multiplication by infinity in real and complex multispatial hyperspaces
Autorzy:
Czajko, Jakub
Powiązania:
https://bibliotekanauki.pl/articles/1157424.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Division by zero
infinity
multispatial uncertainty principle
multispatiality
Opis:
An unrestricted division by zero implemented as an algebraic multiplication by infinity is feasible within a multispatial hyperspace comprising several quasigeometric spaces.
Źródło:
World Scientific News; 2018, 92, 2; 171-197
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Fundamental Holographic Uncertainty Principle and its Primary Applications
Autorzy:
Kabe, Koustubh
Powiązania:
https://bibliotekanauki.pl/articles/1191787.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
holographic principle
holographic uncertainty principle
Heisenberg uncertainty principle
Landauer’s Principle
blackhole entropy
loop quantum gravity
area operator
quantum geometry
general relativity
corrected blackhole horizon
Opis:
The fundamental holographic principle is first proposed, then demonstrated in its validity and viability through a thought experiment and then finally derived. The Heisenberg uncertainty relations are shown to follow from this fundamental relation. The quantum blackhole entropy is then demonstrated using this holographic uncertainty relation along with the application of the Landauer’s principle for the thermodynamic erasure of a bit yielding a formula with a logarithmic correction. The blackhole entropy is found to be half the value normally delivered by any other method. So, it is proposed that there is a real relevant physical horizon at the twice the Schwarzschild radius dubbed the holographic information geometric horizon.
Źródło:
World Scientific News; 2016, 50; 33-48
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An uncertainty principle related to the Poisson summation formula
Autorzy:
Gröchenig, K.
Powiązania:
https://bibliotekanauki.pl/articles/1221102.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
uncertainty principle
Poisson summation formula
unimodular polynomial
modulation space
time-frequency analysis
phase space
Opis:
We prove a class of uncertainty principles of the form $∥S_{g}f∥_{1} ≤ C(∥x^{a}f∥_{p} + ∥ω^{b}f̂∥_{q})$, where $S_{g}f$ is the short time Fourier transform of f. We obtain a characterization of the range of parameters a,b,p,q for which such an uncertainty principle holds. Counter-examples are constructed using Gabor expansions and unimodular polynomials. These uncertainty principles relate the decay of f and f̂ to their behaviour in phase space. Two applications are given: (a) If such an inequality holds, then the Poisson summation formula is valid with absolute convergence of both sums. (b) The validity of an uncertainty principle implies sufficient conditions on a symbol σ such that the corresponding pseudodifferential operator is of trace class.
Źródło:
Studia Mathematica; 1996, 121, 1; 87-104
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Approximation and Prediction of the Wind Speed Change Function
Autorzy:
Klen, K.
Zhuikov, V.
Powiązania:
https://bibliotekanauki.pl/articles/410602.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
distributed generation
wind generator
Heisenberg’s uncertainty principle
linear approximation
Walsh functions
regression analysis
Opis:
In the article the features of energy summation from two wind generators, located at a certain distance from each other, are considered. The method of calculating the correlation function between the wind flow speed change functions in the direction of wind distribution is presented. The formulas for describing the fluctuation components of energy at the output of the wind generator are given for two cases: when the phases of the fluctuations of the wind flow on two wind generators are the same and when the fluctuations of the wind flow are in the antiphases. It is shown that to increase the energy level that can be taken from the wind power plant it is necessary to control the phase shift between the energy fluctuations at the output of the wind generators and use the energy of the storages; and to use linear approximations to approximate the wind speed change function. Under the condition of a linear change of the internal resistance of the wind generator in time, it is advisable to introduce the wind speed change function with linear approximations. The system of orthonormal linear functions based on Walsh functions is given. A table with formulas and graphs describing the first 8 functions, which are arranged in order of increasing the number of their sign alternating on the interval of functions definition, is presented. The result of the approximation of the wind speed change function with a system of 8 linear functions based on Walsh functions is shown. Decomposition coefficients, mean-square and average relative approximation errors for such approximation are calculated. In order to find the parameters of multiple linear regression the method of least squares is applied. The regression equation in matrix form is given. An example of application of linear regression prediction method to simple functions is shown. The restoration result for wind speed change function is shown. Decomposition coefficients, mean-square and average relative approximation errors for restoration of wind speed change function with linear regression method are calculated.
Źródło:
Present Problems of Power System Control; 2018, 9; 35-46
2084-2201
Pojawia się w:
Present Problems of Power System Control
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ekranizacje powieści Agathy Christie „Morderstwo w Orient Expressie”– obserwujesz i jesteś obserwowany
Screen adaptations of Agatha Christie’s novel Murder in Orient Express – you observe and you are being observed
Autorzy:
Bartoszewicz, Iwona
Powiązania:
https://bibliotekanauki.pl/articles/1191945.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Wrocławski. Oficyna Wydawnicza ATUT – Wrocławskie Wydawnictwo Oświatowe
Tematy:
Agatha Christie
Murder in Orient Express
screen adaptation
Heisenberg’s uncertainty principle
adaptation
observer
interpretation
Opis:
Agatha Christie (1890–1976), less known as lady Mallowan, an outstanding author, mainly of detective novels, published “Murder in Orient Express” in 1933/34. From the very beginning, the book was considered a masterpiece of this genre. The reason for that is not only brilliantly constructed plot with astonishing culminating point, but also the fact that the author of the book referred to an authentic event which evoked great emotions. The event that inspired this novel was kidnapping and murder of the little son of a known and admired American pioneer of intercontinental flights, Charles August Lindbergh, that happened in 1932. The novel was translated into almost all languages. There were also numerous stage adaptations. At least four films were based on this novel which indicates the cultural significance of the work. The subject of the considerations in the present paper is an attempt to search for the answer about the role of the so-called observer in the process of reconstruction, retransmission and assimilation of thematic threads, which can become the reference point not only for the author of the literary work. They may become an element of collective memory and, in this way, the element of culture constituting narration. However, as an object of general knowledge, they are at the same time subjected to common interpretation. The Heisenberg’s uncertainty principle, referred to in its basic range in quantum mechanics, indicates the significant role of the subject observing in this process. Heisenberg proved that the presence of an observer is not neutral from the point of view of the quality of the results. Referring to these considerations on the text as a cultural object, let us analyse the ways in which the theme was modified and the significance of these changes. We consider Agatha Christie’s novel and especially its screen adaptations an interesting object of research. The observer, as it turns out, is beside the researcher also the author of the literary text, screenwriter, translator…
Źródło:
Studia Translatorica; 2019, 10; 113-133
2084-3321
2657-4802
Pojawia się w:
Studia Translatorica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aria Heisenberga (I). O negatywnych skutkach akcentowania zasady nieoznaczoności w wykładzie teorii atomu
Autorzy:
Szymański, Adam
Powiązania:
https://bibliotekanauki.pl/articles/429171.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Papieski Jana Pawła II w Krakowie
Tematy:
Keywords Werner Heisenberg
uncertainty principle
quantum mechanics
popularization of science
context of discovery
history of science
Opis:
According to the author, a perfect example of the theory, which is considered to be removed from the historical context, is the uncertainty principle. For various reasons, this principle became the most famous element of atomic theory, and it usually serves as kick-off for popular lectures in quantum mechanics. This order of presentation can, however, distort an accurate picture of the uncertainty principle and quantum mechanics in general. In this article we try to identify specifically the misunderstandings initiating a course of quantum mechanics contrary to the chronology from the uncertainty principle can lead.
Źródło:
Semina Scientiarum; 2014, 13
1644-3365
Pojawia się w:
Semina Scientiarum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kwantowe karty do głosowania jako alternatywa dla klasycznych, asymetrycznych algorytmów uzgadniania kryptograficznego klucza szyfrującego
Quantum voting cards as an alternative for classic algorithms of public key distribution
Autorzy:
Sobota, M.
Powiązania:
https://bibliotekanauki.pl/articles/327118.pdf
Data publikacji:
2013
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
głosowanie elektroniczne
metoda kwantowa
kryptografia kwantowa
zasada nieoznaczoności Heisenberga
electronic voting
quantum method
quantum cryptography
Heisenberg uncertainty principle
Opis:
Artykuł przedstawia model głosowania elektronicznego wykorzystującego kwantowe karty do głosowania opierające się na protokołach kwantowego uzgadniania klucza. Silną stroną modelu jest wykorzystanie zabezpieczeń opartych na prawach fizyki w miejsce bezpieczeństwa obliczeniowego.
The article presents the model using quantum e-voting cards based on protocols of quantum key distribution. The strength of the model is using security based on the laws of physics in a place of computing security.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2013, 64; 217-223
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Teorie kwantowe jako podstawa nowoczesnej kryptografii
Quantum theories as modern cryptography basis
Autorzy:
Sobota, M.
Powiązania:
https://bibliotekanauki.pl/articles/326360.pdf
Data publikacji:
2012
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
kryptografia kwantowa
mechanika kwantowa
zasada nieoznaczoności Heisenberga
splątanie kwantowe
quantum cryptography
quantum mechanics
Heisenberg uncertainty principle
quantum entanglement
Opis:
Artykuł przedstawia kilka fundamentalnych praw oraz twierdzeń mechaniki kwantowej stanowiących podstawę kryptografii kwantowej.
This paper presents some fundamental rights and theorems of quantum mechanics stands base of quantum cryptography.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2012, 61; 277-283
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 20

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