Sascha Leonhardt
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View article: Towards a Swampland Global Symmetry Conjecture using weak gravity
Towards a Swampland Global Symmetry Conjecture using weak gravity Open
It is widely believed and in part established that exact global symmetries\nare inconsistent with quantum gravity. One then expects that approximate global\nsymmetries can be quantitatively constrained by quantum gravity or swampland\nargu…
View article: A conjecture on the minimal size of bound states
A conjecture on the minimal size of bound states Open
We conjecture that, in a renormalizable effective quantum field theory where the heaviest stable particle has mass m , there are no bound states with radius below 1/m (Bound State Conjecture). We are motivated by the (scalar) Weak G…
View article: Report on 1912.09485v2
Report on 1912.09485v2 Open
We conjecture that, in a renormalizable effective quantum field theory where the heaviest stable particle has mass m , there are no bound states with radius below 1/m (Bound State Conjecture).We are motivated by the (scalar) Weak Gravity C…
View article: Testing and Extending Swampland Conjectures
Testing and Extending Swampland Conjectures Open
In this thesis we study landscape constructions to challenge existing swampland conjectures and extend established ones in order to expand our understanding of quantum gravity and its possible consequences for phenomenology.
\nWe construct…