235 citations · 1.4k across the 37 of their papers we have counts for
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RG Flows with Global Symmetry Breaking and Bounds from Chaos
Sandipan Kundu
We discuss general aspects of renormalization group (RG) flows between two conformal fixed points in 4d with a broken continuous global symmetry in the UV. Every such RG flow can b…
Causality Constraints in Large QCD Coupled to Gravity
Jared Kaplan, Sandipan Kundu
Confining gauge theories contain glueballs and mesons with arbitrary spin, and these particles become metastable at large . However, metastable higher spin particles, when coupl…
Closed Strings and Weak Gravity from Higher-Spin Causality
Jared Kaplan, Sandipan Kundu
We combine old and new quantum field theoretic arguments to show that any theory of stable or metastable higher spin particles can be coupled to gravity only when the gravity secto…
A Generalized Nachtmann Theorem in CFT
Sandipan Kundu
Correlators of unitary quantum field theories in Lorentzian signature obey certain analyticity and positivity properties. For interacting unitary CFTs in more than two dimensions,…