Anupam Mazumdar

Anupam Mazumdar is a theoretical physicist at the University of Groningen[1] specialising in cosmology and quantum gravity. He has previously been affiliated to the Higgs Centre, at the University of Edinburgh,[2] and the Discovery Center at the Niels Bohr Institute, Copenhagen.[3]

His work has focused on multi field theories of inflation, such as assisted inflation,[4] visible sector inflation such as MSSM inflation.[5] He has worked on the ghost-free and singularity-free construction of infinite derivative theories of gravity,[6] 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,[7] 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.[8] A positive test of this phenomenon would establish that the graviton is quantum in nature.