全温超流体
A Superfluid at All Temperatures
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中文总结 AI 辅助
构造有限N的3+1维共形场论,其热态在任意温度破缺连续对称性,实现参数可控的超流体,并弱规范对称性得到指数温度范围的超导体。
中文摘要 AI 辅助
我们构造了具有有限多个场的幺正、局域、3+1维共形场论,其热态在任意温度下都会破缺一个连续全局对称性。它们是Chaudhuri--Choi--Rabinovici理论的有限$N$版本,该理论的平面固定点圆上有一个有序弧。该圆在$1/N^2$阶被提升,且此弧上的无穷多个固定点达到任意弱耦合,此时超流体处于参数控制之下。我们还表明,弱规范该对称性会在指数级温度范围内给出超导体。
英文摘要
We construct unitary, local, 3+1-dimensional conformal field theories with finitely many fields whose thermal state breaks a continuous global symmetry at every temperature. They are finite-$N$ versions of the Chaudhuri--Choi--Rabinovici theories, whose planar circle of fixed points has an ordered arc. The circle is lifted at order $1/N^2$, and an infinite family of fixed points on this arc reaches arbitrarily weak coupling, where the superfluid is under parametric control. We also show that weakly gauging the symmetry gives a superconductor over an exponential range of temperatures.
发表机构
- University of California, Los Angeles(加利福尼亚大学洛杉矶分校)
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