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math-ph2026
Hadamard states for linearized gravity on asymptotically flat spacetimes
Christian Gérard, Mikhail Molodyk, Michał Wrochna
We consider the quantization of linearized Einstein equations on 4-dimensional asymptotically flat spacetimes. We prove the existence of fully gauge invariant Hadamard states in th…
gr-qc2026
Classical and quantum scattering of massive Klein--Gordon fields in asymptotically flat spacetimes
Mikhail Molodyk
We use microlocal tools to define distinguished incoming and outgoing vacuum states of the quantum theory of massive Klein--Gordon fields in non-trapping asymptotically flat spacet…