New Method to Deal with Three-Dimensional Electron Gas with a Strong Correlation Effect

doi:10.1088/0256-307X/29/12/127101

Chin. Phys. Lett.

2012, Vol. 29

Issue (12): 127101 DOI: 10.1088/0256-307X/29/12/127101

CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES

New Method to Deal with Three-Dimensional Electron Gas with a Strong Correlation Effect

YU Zhi-Ming, GUO Qian, LIU Yu-Liang^**

Department of Physics, Renmin University of China, Beijing 100872

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YU Zhi-Ming, GUO Qian, LIU Yu-Liang 2012 Chin. Phys. Lett. 29 127101

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Abstract Similar to the bosonization method in one dimension, we divide the electron operators in phase space into two component operators, and study three-dimensional homogeneous electron gas with a strong correlation effect. We apply this method to calculate the pair distribution function g(r=0,r_s) and the renormalization coefficient of the one-electron Green's function Z(k_F)(Z_F), and show that it has great advantages of succinctness and efficiency for studying one- and three-dimensional systems with a strong correlation effect. This method can be applied to investigate interaction quenches in ultracold atomic gases.

Received: 23 May 2012 Published: 04 March 2013

PACS:	71.27.+a	(Strongly correlated electron systems; heavy fermions)
	71.10.Ca	(Electron gas, Fermi gas)

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https://cpl.iphy.ac.cn/10.1088/0256-307X/29/12/127101 OR https://cpl.iphy.ac.cn/Y2012/V29/I12/127101

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