4 papers
Visions in Quantum Gravity
Luca Buoninfante, Benjamin Knorr, K. Sravan Kumar +36
To deepen our understanding of Quantum Gravity and its connections with black holes and cosmology, building a common language and exchanging ideas across different approaches is cr…
Towards a unitary formulation of quantum field theory in curved spacetime: the case of de Sitter spacetime
K. Sravan Kumar, João Marto
Before we ask what the quantum gravity theory is, it is a legitimate quest to formulate a robust quantum field theory in curved spacetime (QFTCS). Several conceptual problems, espe…
Towards a unitary formulation of quantum field theory in curved space-time: the case of Schwarzschild black hole
K. Sravan Kumar, João Marto
We argue that the origin of unitarity violation and information loss paradox in our understanding of black holes (BH) lies in the standard way of doing quantum field theory in curv…
Parity asymmetry of primordial scalar and tensor power spectra
K. Sravan Kumar, João Marto
Although the cosmic microwave background (CMB) is largely understood to be homogeneous and isotropic, the CMB angular power spectra present anomalies that seem to break down parity…