Accès ouvert
2026
preprint
OpenAlex
Tanmay Vachaspati, Frank Wilczek, Zara Yu
The usual WKB analysis for quantum tunneling applies when the tunneling action is large, as it is for tall, wide potential barriers. In contrast we analyze tunneling when the action is small, as it is for tunneling across a tall, thin barrier. …
Accès ouvert
2026
preprint
OpenAlex
ALPHA Collaboration, Xiran Bai, Rustam Balafendiev, Sean Barrett et autres
The axion is a well-motivated hypothetical particle capable of resolving both the strong CP problem and the dark matter mystery, with recent post-inflationary cosmological simulations favoring masses above 40 μeV. Plasma haloscopes serve as a promising experimental approach to reach theoretically preferred …
Accès ouvert
2002
preprint
OpenAlex
Frank Wilczek
I discuss four big questions that can be importantly addressed using concepts from modern QCD. They concern the origin of mass, the feebleness of gravity, the uniqueness of physical laws, and the fate of matter when it is squeezed very hard.