Bose fluids above T(c): incompressible vortex fluids and "supersolidity".
Bose fluids above T(c): incompressible vortex fluids and "supersolidity".
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T(c) 以上的玻色流体：不可压缩涡流流体和“超固体”。
DOI：
10.1103/physrevlett.100.215301
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发表时间：
2007
影响因子：
8.6
通讯作者：
Philip W. Anderson
中科院分区：
文献类型：
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作者：
Philip W. Anderson
这封信强调，玻色流体在其超流体T(C)‘S上方的非线性旋转或抗磁磁化率是其特征。对于足够慢的自转或对于超导体，弱B场，这相当于对涡量的不可压缩响应。原因是在传统接受的玻色流体中的量子化涡旋的哈密顿量模型中缺少项。由此产生的磁化率可以解释Chan等人最近对固态He和Ong等人关于铜酸盐超导体的观测[Natural(London)427,225(2004)；Science 305,1941(2004)]。
This Letter emphasizes that nonlinear rotational or diamagnetic susceptibility is characteristic of Bose fluids above their superfluid T(C)'s. For sufficiently slow rotation or, for superconductors, weak B fields, this amounts to an incompressible response to vorticity. The cause is that there are terms missing in the conventionally accepted model Hamiltonian for quantized vortices in the Bose fluid. The resulting susceptibility can account for recent observations of Chan et al. [Nature (London) 427, 225 (2004); Science 305, 1941 (2004)] on solid He and Ong et al. [Europhys. Lett. 72, 451 (2005) on cuprate superconductors.