Confining Strings in a Gapless Environment

Abstract: In this talk, I will discuss confined strings in a gapless four-dimensional theory, focusing on finite-tension string solutions of the CP1 non-linear sigma model. I will analyze quantum fluctuations around these configurations, derive the corresponding spectrum, and study its properties. I will then show how one can use these results to compute various observables like the quantum corrections to the ground-state energy and the effective string width. Through the discussion, I will compare these findings with the usual predictions of effective string theory.

condensed mattergeneral relativity and quantum cosmologyHEP - latticeHEP - theorymathematical physicsquantum physics

Audience: researchers in the topic

Quantum Theories of Fields, Matter, and Strings

Series comments: A series of talks covering a broad range of topics in theoretical physics, including high energy theory, condensed matter, and string theory.

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