Anupam Mazumdar
Anupam Mazumdar is a theoretical physicist at the University of Groningen specialising in cosmology and quantum gravity. He has previously been affiliated to the Higgs Centre, at the University of Edinburgh, and the Discovery Center at the Niels Bohr Institute, Copenhagen.
His work has focused on multi field theories of inflation, such as assisted inflation, visible sector inflation such as MSSM inflation. He has worked on the ghost-free and singularity-free construction of infinite derivative theories of gravity, which can potentially resolve the Schwarzschild singularity for mini black holes, yielding a non-singular compact object without event horizon, and cosmological singularities. He has also conjectured with Koshelev that astrophysical black hole has no curvature singularity and devoid of an event horizon, in infinite derivative theories of gravity, because the scale of non-locality in gravitational interaction can engulf the gravitational radius of the compact object.
At time scales and at distances below the effective scale of non-locality the gravitational interaction weakens sufficiently enough that a finite pressure from normal matter satisfying null, strong and weak energy conditions can avoid forming blackhole with event horizon and cosmological singularities.
Together with Sougato Bose, Mazumdar has also proposed a table-top experiment to test linearized quantum aspects of gravity via witnessing spin entanglement between two macroscopic superposition of masses, along with his colleagues from quantum optics and quantum information. A positive test of this phenomenon would establish that the graviton is quantum in nature.
