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5 papers · 1 filter
Forced Convex Mean Curvature Flow in Euclidean Spaces
Guanghan Li, Isabel Salavessa
In this paper, we consider the mean curvature flow of convex hypersurfaces in Euclidean spaces with a general forcing term. We show that the flow may shrink to a point in finite ti…
Topological quantum phase transition and the Berry phase near the Fermi surface in hole-doped quantum wells
Bin Zhou, Chao-Xing Liu, Shun-Qing Shen
We propose a topological quantum phase transition for quantum states with different Berry phases in hole-doped III-V semiconductor quantum wells with bulk and structure inversion a…
Bose-Einstein condensation in linear sigma model at Hartree and large N approximation
Song Shu, Jia-Rong Li
The BEC of charged pions is investigated in the framework of O(4) linear sigma model. By using Cornwall-Jackiw-Tomboulis formalism, we have derived the gap equations for the effect…
The CJT calculation in studying nuclear matter beyond mean field approximation
Song Shu, Jia-RongLi
We have introduced a CJT calculation in studying nuclear matter beyond mean field approximation. Based on the CJT formalism and using Walecka model, we have derived a set of couple…
The superconducting gap in the Hubbard model and the two gap energy scales in high-Tc cuprates
M. Aichhorn, E. Arrigoni, Z. B. Huang +1
Recent excperiments (ARPES, Raman) suggest the presence of two distinct energy gaps in high-Tc superconductors (HTSC), exhibiting different doping dependences. Results of a variati…