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[Date] Nov 8 [Speaker] Professor Kyle McElroy Condensed Matter Physics [Title] 
“How to Hold Many Universes in Your Hand (Sorta)” We live in a world where almost all of the fundamental forces of nature are nearly hidden from us. Only the weakest force—gravity—shows itself to us directly. In most instances, these other forces nearly cancel themselves out, leaving only traces of their nature behind in our daily lives. This means that many of the interactions in the macroscopic universe we live in are the result of only tiny specks of fundamental forces, which come from these very tiny force cancellations. Because of this, small changes in how these cancellations occur can effectively lead to wildly different properties of the universe we live in. In the field of condensed matter physics, we study the interactions that exist inside the materials that surround us and how electrons behave in these systems. By finding materials where the fundamental forces between the electrons and nuclei cancel in slightly different ways, we explore wholly different universes where electrons live. In this talk, I will explain how we use these tiny details to find universes where new laws of physics emerge, where electrons and atoms can move with no friction, where different Higgs bosons or even magnetic monopoles exist, and much more—all in materials you can hold in the palm of your hand.
Saturday Physics Series | Physics
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