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hep-th2026
Wading the String Bog: CMB Birefringence in the Swampland
Guido D'Amico, Nemanja Kaloper, Alexander Westphal
We point out that observations of cosmic birefringence may provide direct experimental tests of Swampland conjectures. Ultralight scalar field birefringence mechanisms are constrai…
hep-th2024
Falsifying Anthropics
Nemanja Kaloper, Alexander Westphal
We propose using fuzzy axion dark matter to test the anthropic principle. A very light axion can be directly detectable, at least by black hole superradiance effects. The idea then…
hep-th2023
Implications of Weak Gravity Conjecture for de Sitter Decay by Flux Discharge
Nemanja Kaloper, Alexander Westphal
We examine implications of the weak gravity conjecture for the mechanisms for discharging cosmological constant via membrane nucleations. Once screening fluxes and membranes which…