Theoretical or Mathematical/ Hubbard model/ Hubbard modelt-J modelmean-field approximations/ A7110 Theories and models of many electron systems in condensed matterWe report novel results obtained for the Hubbard and t- J models by various mean-field approximations....
\chi_0 就是mean-field 对应的saddle-point,一个static的值(需要自洽地解)并且只作为参数不参与路径积分(都解出来了怎么作为变量去积分对不对。平均场本来的意思就是 \mathinner{\langle\chi_{ij}\rangle} 是被积分的变量,然后自洽解出一个解 \chi_0 使得它不用被积分), \delta\chi_{ij}(\tau) 以及a...
Mean-field theory for the t-J model A new possible treatment of large amplitude gauge-field fluctuations around the slave-boson mean-field theory for the t-J model has been proposed by attach... C Jayaprakash,HR Krishnamurthy,S Sarker - 《Phys Rev B Condens Matter》 被引量: 358发表: 19...
t-J model(lattice spin+fermion, composite symmetry)更复杂，主要是加入了一些巡游的费米子，等价的说...
It is still a relatively active field and more recently new Monte Carlo methods are devoted to reach finite temperature and larger sizes17,18. Figure 1 A closed one-hole loop may be regarded as a subsystem of the 2D t-J model in which the hopping and superexchange processes connecting to ...
ELISA plates were developed with TMB substrate (BD PharMingen) and read by a microplate reader (model 570, Bio-Rad). Statistical analysis Unless otherwise noted, the data in this article are pre- sented as mean ± standard error of mean (SEM). T-test, one-way ANOVA, Mann-Whitney ...
(Fig.1d). The third booster vaccination 40 weeks later increased geometric mean titers to 1:188 (range 20–1,157) and 1:118 (28–4,810) in groups 1 and 2, respectively. Although there was no statistically significant difference in the magnitude of autologous nAb titer between vaccination ...
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1b). Two loops of saddle-shaped customized RF coils were integrated on either side of the mouse head holder to generate a magnetic field perpendicular to the main field, as required for MRI acquisitions (see Methods for details). Warm water was provided through polypropylene tubes inserted in ...