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hep-th2024
Correlators for pseudo Hermitian systems
Yao Bai, Ting-Long Feng, Suro Kim +4
Pseudo-Hermitian system is a class of non-Hermitian system with Hamiltonian satisfying the condition . We develop the in-in and Schwinger Keldysh formalism to c…
hep-ph2024
Constraining Millicharged dark matter with Gravitational positivity bounds
Suro Kim, Pyungwon Ko
Gravitational positivity bounds provide consistency conditions for effective field theories with gravity. They turn out to be phenomenologically useful by providing lower bounds in…