标题： 反铁磁量子涡旋之间的吸引力作为铜氧化物超导性的起源 显示英文标题

标题： The attraction between antiferromagnetic quantum vortices as origin of superconductivity in cuprates

摘要： 我们提出在(空穴掺杂)铜氧化物超导体中的超导性的关键是一种新型的磁起源激发，具有二维特征且纯粹是量子性质的：反铁磁自旋涡旋。 在此形式中，电荷配对来源于这种涡旋在相反的奈尔亚晶格上的类似库珀对的吸引作用。 这种电荷配对通过由t-J模型中铜氧平面所施加的无双占据约束产生的规范力的作用也引起了自旋配对。 超导性来源于描述张-莱斯单态的激发对的相干性，它不是标准的BCS类型。 我们表明，铜氧化物的许多实验特性可以在这一形式中得到自然的解释。 显示英文摘要

摘要： We propose as key of superconductivity in (hole-doped) cuprates a novel excitation of magnetic origin, characteristic of two-dimensions and of purely quantum nature: the antiferromagnetic spin vortices. In this formalism the charge pairing arises from a Kosterlitz-Thouless-like attraction between such vortices centered on opposite N\'eel sublattices. This charge pairing induces also the spin pairing through the action of a gauge force generated by the no-double occupation constraint imposed in the t-J model of the CuO planes of the cuprates. Superconductivity arises from coherence of pairs of excitations describing Zhang-Rice singlets and it is not of standard BCS type. We show that many experimental features of the cuprates can find a natural explanation in this formalism.