Journal article

Publication year: 1998

Pages: 355-370

Journal: The European Physical Journal A

Volume number: 2

Issue number: 4

ISSN: 1434-6001

DOI Link: https://doi.org/10.1007/s100500050132

Publisher: Springer

Abstract: 
Using the method of correlation dynamics we investigate the properties of a field-theory for fermions and scalar bosons coupled via a Yukawa interaction. Within this approach, which consists in an expansion of full equal-time Green functions into connected equal-time Green functions and a corresponding truncation of the hierarchy of equations of motion we carry out calculations up to 4th order in the connected Green functions and evaluate the effective potential of the theory in 1+1 dimensions on a torus. Comparing the different approximations we find a strong influence of the connected 4-point functions on the properties of the system.

Harvard Citation style: Juchem, S., Cassing, W. and Hauser, J. (1998) Correlation dynamics of Yukawa-theory in 1+1 dimensions, The European Physical Journal A, 2(4), pp. 355-370. https://doi.org/10.1007/s100500050132

APA Citation style: Juchem, S., Cassing, W., & Hauser, J. (1998). Correlation dynamics of Yukawa-theory in 1+1 dimensions. The European Physical Journal A. 2(4), 355-370. https://doi.org/10.1007/s100500050132