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  • World Scientific Pub Co Pte Ltd  (64)
  • Physics  (64)
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  • World Scientific Pub Co Pte Ltd  (64)
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  • Physics  (64)
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  • 1
    Online Resource
    Online Resource
    Taiji program in space for gravitational universe with the first run key technologies test in Taiji-1
    World Scientific Pub Co Pte Ltd ; 2021
    In:  International Journal of Modern Physics A Vol. 36, No. 11n12 ( 2021-04-30), p. 2102002-
    Details
    In: International Journal of Modern Physics A, World Scientific Pub Co Pte Ltd, Vol. 36, No. 11n12 ( 2021-04-30), p. 2102002-
    Type of Medium: Online Resource
    ISSN: 0217-751X , 1793-656X
    URL: Article
    DOI: 10.1142/S0217751X21020024
    RVK:
    UA 4381
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2021
    SSG: 16,12
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  • 2
    Online Resource
    Online Resource
    Magic wavelengths of the optical clock transition at 877 nm of barium
    World Scientific Pub Co Pte Ltd ; 2014
    In:  Modern Physics Letters B Vol. 28, No. 23 ( 2014-09-10), p. 1450183-
    Details
    In: Modern Physics Letters B, World Scientific Pub Co Pte Ltd, Vol. 28, No. 23 ( 2014-09-10), p. 1450183-
    Abstract: Magic wavelengths for laser trapping of barium atoms in the optical lattices are investigated while considering the optical clock transition at 877 nm between the 6s 2 1 S 0 state and 6s5d 1 D 2 state. Theoretical calculation shows that there are several magic wavelengths with the linearly polarized trapping laser. The trap depths of the optical lattice and the slope of light shift difference with different magic wavelengths are also discussed and analyzed. Some of these magic wavelengths are selected and recommended for the optical lattice trapping laser.
    Type of Medium: Online Resource
    ISSN: 0217-9849 , 1793-6640
    URL: Article
    DOI: 10.1142/S0217984914501838
    RVK:
    UA 5534.B
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2014
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  • 3
    Online Resource
    Online Resource
    THE ELECTRONIC CORRELATION EFFECT FROM WEAK TO STRONG IN THE THREE DIMENSIONAL ELECTRON GAS
    World Scientific Pub Co Pte Ltd ; 2012
    In:  International Journal of Modern Physics B Vol. 26, No. 11 ( 2012-04-30), p. 1250065-
    Details
    In: International Journal of Modern Physics B, World Scientific Pub Co Pte Ltd, Vol. 26, No. 11 ( 2012-04-30), p. 1250065-
    Abstract: Based on the success of the eigenfunctional theory ( EFT) in the one-dimensional model, 16,24,51 we apply it to the three-dimensional homogeneous electron gas. By EFT, we first present a rigorous expression of the pair distribution function g(r) of the electron gas. This expression effectively solves the negative problem of g(r) that when electronic correlation effect is strong, the previous theories give a negative g(r), 9 while g(r) is strictly a positive function. From this reasonable g(r), we estimate and establish a newly effective fitting expression of the ground state energy of electron gas. The new fitting expression presents a similar result with present theories when r s is small, since only in the limit of r s is small, present theories estimate a exact ground state energy. When r s increases, the difference between EFT and other theories becomes more and more remarkable. The difference is expected as EFT estimates a reasonable g(r) and would effectively amend the overestimate of previous theories in the ground state energy. In addition, by the ground state energy, we estimate the phase transition derived by the strong correlation effect. When the density decreases, the electronic correlation effect changes from weak to strong and we observe a sudden phase transition from paramagnetic to full spin polarization occurring at r s = 31 ± 4.
    Type of Medium: Online Resource
    ISSN: 0217-9792 , 1793-6578
    URL: Article
    DOI: 10.1142/S0217979212500658
    RVK:
    UA 4381.B
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2012
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  • 4
    Online Resource
    Online Resource
    RECENT RESULTS FROM BESII J/ψ DECAYS
    World Scientific Pub Co Pte Ltd ; 2009
    In:  International Journal of Modern Physics A Vol. 24, No. 02n03 ( 2009-01-30), p. 428-433
    Details
    In: International Journal of Modern Physics A, World Scientific Pub Co Pte Ltd, Vol. 24, No. 02n03 ( 2009-01-30), p. 428-433
    Abstract: In this representation, some recent results from BESII J/ψ decays have been represented, including the analysis of [Formula: see text] which is helpful to understand the threshold enhancement structure founded in [Formula: see text] is from pure final states interference(FSI) or not and the analysis of [Formula: see text] the enhancement based on it some discussion will be hold if the structure is same one as the baryon excited states N* found in [Formula: see text] .
    Type of Medium: Online Resource
    ISSN: 0217-751X , 1793-656X
    URL: Article
    DOI: 10.1142/S0217751X09043778
    RVK:
    UA 4381
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2009
    SSG: 16,12
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  • 5
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    Online Resource
    Preparation of graphene/Fe 3 O 4 /Ni electromagnetic microwave absorbing nano-composite materials
    World Scientific Pub Co Pte Ltd ; 2019
    In:  International Journal of Modern Physics B Vol. 33, No. 01n03 ( 2019-01-30), p. 1940055-
    Details
    In: International Journal of Modern Physics B, World Scientific Pub Co Pte Ltd, Vol. 33, No. 01n03 ( 2019-01-30), p. 1940055-
    Abstract: Graphene/Fe 3 O 4 /Ni nano-composite materials were prepared by one-step hydrothermal method from RGO, FeCl 3 ⋅ 6H 2 O and purity Ni. The structure and electromagnetic microwave absorbing properties were investigated systematically by field emission scanning electron microscope (FESEM), X-ray diffractometer (XRD), X-ray photoelectron spectroscopy (XPS) and vector network analyzer (VNA). The reflectance was simulated based on the electromagnetic parameters to evaluate the absorption properties of the sample. The results show that Fe 3 O 4 and Ni are on the surface of graphene evenly, the composites exhibit excellent microwave absorption properties, reflection loss and broad effective absorption bandwidth are −16.38 dB and 3.60 GHz, as the paraffin wax is 40% and the matching thickness is 2.00–3.50 mm.
    Type of Medium: Online Resource
    ISSN: 0217-9792 , 1793-6578
    URL: Article
    DOI: 10.1142/S0217979219400551
    RVK:
    UA 4381.B
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2019
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  • 6
    Online Resource
    Online Resource
    Strong decay properties of single heavy baryons ΛQ, ΣQ and ΩQ
    World Scientific Pub Co Pte Ltd ; 2023
    In:  International Journal of Modern Physics A Vol. 38, No. 15n16 ( 2023-06-10)
    Details
    In: International Journal of Modern Physics A, World Scientific Pub Co Pte Ltd, Vol. 38, No. 15n16 ( 2023-06-10)
    Abstract: Motivated by recent progresses in experiments in searching for the [Formula: see text] baryons, we systematically analyze the strong decay behaviors of single heavy baryons [Formula: see text] , [Formula: see text] and [Formula: see text] . The two-body strong decay properties of [Formula: see text]-wave, [Formula: see text] -wave and some [Formula: see text]-wave states are studied with the [Formula: see text] model. The results support assigning the recently observed [Formula: see text] and [Formula: see text] as the 2S([Formula: see text]) and 1D([Formula: see text] ) states, respectively. In addition, the quantum numbers of many other experimentally observed baryons are also suggested according to their strong decays. Finally, some baryons which have good potentials to be observed in experiments are predicted and the possible decay channels for searching for these predicted states are also suggested.
    Type of Medium: Online Resource
    ISSN: 0217-751X , 1793-656X
    URL: Article
    DOI: 10.1142/S0217751X23500823
    RVK:
    UA 4381
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2023
    SSG: 16,12
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  • 7
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    Online Resource
    Mass spectra of bottom-charm baryons
    World Scientific Pub Co Pte Ltd ; 2023
    In:  International Journal of Modern Physics A Vol. 38, No. 18n19 ( 2023-07-10)
    Details
    In: International Journal of Modern Physics A, World Scientific Pub Co Pte Ltd, Vol. 38, No. 18n19 ( 2023-07-10)
    Abstract: In this paper, we investigate the mass spectra of bottom-charm baryons systematically, where the relativistic quark model and the infinitesimally shifted Gaussian basis function method are employed. Our calculation shows that the [Formula: see text]-mode appears lower in energy than the other excited modes. According to this feature, the allowed quantum states are selected and a systematic study of the mass spectra for [Formula: see text] ([Formula: see text]) and [Formula: see text] ([Formula: see text]) families is performed. The root mean square radii and quark radial probability density distributions of these baryons are analyzed as well. Next, the Regge trajectories in the [Formula: see text] plane are successfully constructed based on the mass spectra. At last, we present the structures of the mass spectra, and analyze the difficulty and opportunity in searching for the ground states of bottom-charm baryons in experiment.
    Type of Medium: Online Resource
    ISSN: 0217-751X , 1793-656X
    URL: Article
    DOI: 10.1142/S0217751X23500951
    RVK:
    UA 4381
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2023
    SSG: 16,12
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  • 8
    Online Resource
    Online Resource
    Analysis of the strong vertices of Σc∗ND and Σb∗NB in QCD sum rules
    World Scientific Pub Co Pte Ltd ; 2017
    In:  International Journal of Modern Physics A Vol. 32, No. 35 ( 2017-12-20), p. 1750203-
    Details
    In: International Journal of Modern Physics A, World Scientific Pub Co Pte Ltd, Vol. 32, No. 35 ( 2017-12-20), p. 1750203-
    Abstract: The strong coupling constants not only are important to understand the strong interactions of the heavy baryons, but can also help us reveal the nature and structure of these baryons. Additionally, researchers indeed have made great efforts to calculate some of the strong coupling constants, [Formula: see text], [Formula: see text] , [Formula: see text], [Formula: see text] , [Formula: see text], [Formula: see text] , [Formula: see text], [Formula: see text] , [Formula: see text], [Formula: see text] , [Formula: see text], [Formula: see text] , [Formula: see text], [Formula: see text] , [Formula: see text], etc. In this paper, we analyze the strong vertices [Formula: see text] and [Formula: see text] using the three-point QCD sum rules under the Dirac structure of [Formula: see text] . We perform our analysis by considering the contributions of the perturbative part and the condensate terms of [Formula: see text] and [Formula: see text] . After the form factors are calculated, they are then fitted into analytical functions which are used to get the strong coupling constants for these two vertices. The final results are [Formula: see text] and [Formula: see text] .
    Type of Medium: Online Resource
    ISSN: 0217-751X , 1793-656X
    URL: Article
    DOI: 10.1142/S0217751X17502037
    RVK:
    UA 4381
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2017
    SSG: 16,12
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  • 9
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    Online Resource
    The study of a novel ultrasonic A-scan signal processing method based on fractal theory
    World Scientific Pub Co Pte Ltd ; 2017
    In:  Modern Physics Letters B Vol. 31, No. 19-21 ( 2017-07-30), p. 1740027-
    Details
    In: Modern Physics Letters B, World Scientific Pub Co Pte Ltd, Vol. 31, No. 19-21 ( 2017-07-30), p. 1740027-
    Abstract: Concerning ultrasonic non-destructive testing of ceramic-lined composite steel pipes, a novel bonding flaw locating method based on fractal dimension is proposed. Ultrasonic A-scan method is used on different positions of the composite steel pipe test piece. The fractal dimension of each curve of ultrasonic vibration signal is calculated. The transformation of each fractal dimension is compared and abnormal positions where bonding defects potentially exist are detected. The result indicates that ultrasonic A-scan signal has an excellent fractal conduct characteristic. It is feasible to compare fractal dimension of signal with the normal range and find out abnormal positions, which can provide basis for follow-up inspections.
    Type of Medium: Online Resource
    ISSN: 0217-9849 , 1793-6640
    URL: Article
    DOI: 10.1142/S0217984917400279
    RVK:
    UA 5534.B
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2017
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  • 10
    Online Resource
    Online Resource
    UNIVERSAL DESCRIPTION OF STRONGLY CORRELATED SYSTEMS
    World Scientific Pub Co Pte Ltd ; 2002
    In:  International Journal of Modern Physics B Vol. 16, No. 05 ( 2002-02-20), p. 773-802
    Details
    In: International Journal of Modern Physics B, World Scientific Pub Co Pte Ltd, Vol. 16, No. 05 ( 2002-02-20), p. 773-802
    Abstract: In the eigen-functional theoretical framework, exact/accurate treatment of high-dimensional strongly correlated electron systems may be realized. The two key steps of this method are that under the path integral formulation we first change a D-dimensional quantum many-particle system into an (D+1)-dimensional (time-dependent) effective "single-particle" problem, then by solving the eigen-equation of the propagator operator of the particles, we can obtain the ground state energy functional and action, respectively. Under the eigen-functional theory, the problems of quantum many-particle systems end in to solve the equation of phase fields that are completely determined by the electron interaction. In practice this equation of the phase fields can be numerically solved for large lattice sites. After replacing the real time by the imaginary time, this method can also be applied for finite temperature cases.
    Type of Medium: Online Resource
    ISSN: 0217-9792 , 1793-6578
    URL: Article
    DOI: 10.1142/S0217979202009949
    RVK:
    UA 4381.B
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2002
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