A novel form of Jaha-Teller (JT) effect in the cuprates can be reinterpreted as a conventional JT effect on a lattice with a larger unit cell. There is a triplet of instabilities, parametrized by a pseudospin, consisting of a form of the low-temperature tetragonal phase, a charge density wave phase, and a flux phase (orbital antiferromagnet). On a single 4-Cu plaquette, the problem is of E direct × (b{sub}1 + b{sub}2) form. For a special choice of parameters, the model supports a dynamic JT effect, but is classically chaotic. The connection of this phase with Berryonic matter is discussed.
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机译：可以将铜酸酯中的新型jaha-keerter（jt）效应作为与具有较大单元电池的晶格的常规JT效应重新诠释。存在三重稳定性，由伪旋流的参数化，由低温四方相，电荷密度波相和助焊剂相（轨道反散）组成。在单个4-Cu斑块上，问题是E直接×（B {sub} 1 + b {sub} 2）形式。对于参数的特殊选择，该模型支持动态JT效果，但却是经典的混乱。讨论了该阶段与Berryonic物质的连接。
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