"Nature has provided us with few quantum fluids, in which macroscopic characteristics of the fluid derive directly from quantum coherences. Among such fluids, ones with a non- trivial internal degree of freedom are even rarer, examples being the d-wave and p-wave superconductors and certain phases of superfluid 3He. Ultracold atomic physics has sup- plied us with a new family of such fluids, degenerate Bose gases with a spin degree of freedom. These so-called ‘‘spinor gases’’ are subject to the interplay of magnetism and super- fluidity, both of which involve quantum phase coherence, long-range order, and symmetry breaking. These fluids are interesting in their own right as a newly conceived material now available for experimental investigation. In addition, since these atomic gases can be described starting from a simple theoretical framework, and since their properties can be readily manipulated and measured in experiments, their study promises to shed insight on a range of topics such as the role of symmetry and topology in quantum-ordered materials, quantum phase transitions, nonequilibrium quantum dynam- ics, and the entanglement and squeezing of quantum fields." Rev Mod Phys vol 85 sept 2013 Quadrupole spin 2 D wave superconductors as EM Gravity wave Ray Chiao transducers? Sent from my iPad
Posted on: Mon, 02 Sep 2013 23:09:59 +0000
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