摘要
We construct a new U(1)slave-spin representation for the single-band Hubbard model in the large-U limit.The mean-field theory in this representation is more amenable to describe both the spin-charge-separation physics of the Mott insulator at half-filling and the strange metal behavior at finite doping.
作者
丁文新
俞榕
Wenxin Ding;Rong Yu(School of Physics and Material Science,Anhui University,Hefei 230601,China;Kavli Institute for Theoretical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China;Physics Department and Beijing Key Laboratory of Opto-electronic Functional Materials and Micro-nano Devices,Renmin University,Beijing 100872,China)
基金
supported by Startup Fund of Anhui University(Grant No.S020118002/002)
support from the Kavli Institute for Theoretical Sciences
supported by the National Key R&D Program of China(Grant No.2023YFA1406500)
the National Science Foundation of China(Grant Nos.12334008 and 12174441)。
