High Energy Theory Seminar

Ordered phases of matter, such as solids, ferromagnets, superfluids, or quantum topological order, typically only exist at low temperatures. Despite this conventional wisdom, I will present explicit local models in which all such phases persist to arbitrarily high temperature. This is possible since order in one degree of freedom can enable other degrees of freedom to strongly fluctuate, leading to "entropic order", whereby typical high energy states are ordered. Our construction, which utilizes interacting bosons, avoids existing no-go theorems on long-range order or entanglement at high temperature. I will also review known results on ordered states and introduce a simple model that realizes high-temperature superconductivity within this framework.

The talk is in 469 Lauritsen.

Contact [email protected] for Zoom information.