Correlation functions of the anharmonic oscillator: Numerical verification of two-loop corrections to the large-order behavior
Correlation functions of the anharmonic oscillator: Numerical verification of two-loop corrections to the large-order behavior
复制标题
非简谐振子的相关函数:对大阶行为的双环修正的数值验证
DOI:
10.1103/physrevd.105.105012
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发表时间:
2022
影响因子:
5
通讯作者:
Zinn-Justin, Jean
中科院分区:
文献类型:
--
作者:
Giorgini, Ludovico T.;Jentschura, Ulrich D.;Malatesta, Enrico M.;Parisi, Giorgio;Rizzo, Tommaso;Zinn-Justin, Jean
Recently, the large-order behavior of correlation functions of the-anharmonic oscillator has been analyzed by us [L. T. Giorginiet al., Phys. Rev. D 101, 125001 (2020)PRVDAQ2470-001010.1103/PhysRevD.101.125001]. Two-loop corrections about the instanton configurations were obtained for the partition function, the two-point and four-point functions, and the derivative of the two-point function at zero momentum transfer. Here, we attempt to verify the obtained analytic results against numerical calculations of higher-order coefficients for the,, andoscillators, and we demonstrate the drastic improvement of the agreement of the large-order asymptotic estimates and perturbation theory upon the inclusion of the two-loop corrections to the large-order behavior.
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影响因子:
1.7
作者:
C. Bender
通讯作者:
C. Bender
DOI:
10.1016/b978-0-444-88597-5.50019-3
发表时间:
1990
期刊:
Current Physics–Sources and Comments
影响因子:
--
作者:
É. Brézin;J. Guillou;J. Zinn
通讯作者:
J. Zinn
DOI:
--
发表时间:
1973
期刊:
影响因子:
--
作者:
T. Banks
通讯作者:
T. Banks
DOI:
--
发表时间:
1972
期刊:
影响因子:
--
作者:
A. Ehlenberger;L. B. Mendelsohn
通讯作者:
L. B. Mendelsohn
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
U. Jentschura;J. Zinn
通讯作者:
J. Zinn