HEP Theory Journal Club

What if string theory has a de Sitter excited state?

Keshav Dasgupta

McGill University

So far, despite many heroic attempts, no accelerating solutions have been demonstrated in string theory. In this talk I’ll discuss why there may not exist such solutions at the vacuum level in string theory, and point out that only way they would exist in string theory is if we view them as excited states. Reading suggestion: Section 8 of https://arxiv.org/pdf/2404.11680 summarizes our understanding in a non-technical language.