Lists · Research

This Week-ish in Theoretical Physics

Surely it is hubris on my part to presume to co-opt the title of the venerable online column “This Week’s Finds in Mathematical Physics” written for nearly seventeen years by the great doyen of mathematical communication – John Baez. However, not finding any other takers for this task I figured … why not? So here… Continue reading This Week-ish in Theoretical Physics

Research

On the Compactness of Anti-deSitter Space

In my last post, on the IAGRG30 Conference held at BITS Hyderabad, I had mentioned how during my talk I was corrected by Amitabh Virmani on a seemingly technical point. My talk was on connecting String Theory with Loop Quantum Gravity and as is inevitable in any such talk I opened with a brief description… Continue reading On the Compactness of Anti-deSitter Space

Research

Comment on “A Post-Quantum Theory of Classical Gravity”

Sometime ago Jonathan Oppenheim, one of the brightest minds in the frontiers  of quantum information and quantum foundations, posted a very interesting article on arXiv. As is the custom these days, he announced the paper in a series of tweets, starting with: A post-quantum theory of classical gravity? https://t.co/uNbsbZ2AYq A consistent theory of classical gravity… Continue reading Comment on “A Post-Quantum Theory of Classical Gravity”

Research

DAE-HEP 2018 – Preons, Fermions and All That

The 23th DAE-BRNS High Energy Physics Symposium was held at IIT Madras from Dec 10 – Dec 14. It was an interesting event. I met lots of very smart people. My abstract based on my paper had been selected for a talk in the “Formal Theory” parallel session on Dec 11. Interestingly the talk preceding… Continue reading DAE-HEP 2018 – Preons, Fermions and All That

Blogging · General · Research

Social Relevance of Quantum Gravity

Other 1 than all the other very good theoretical reasons for wanting a theory of quantum gravity, there are some very good practical reasons for wanting such a theory. Ultimately the fate of scientists, theorists and experimentalists alike, rests in the hands of the general public and its elected or appointed political representatives. Why, after… Continue reading Social Relevance of Quantum Gravity

Research

The Planck Scale May Be Closer Than It Appears

Objects in the rearview mirror may be closer than they seem. This statutory warning is familiar to anyone who has ever ridden in a passenger vehicle. Its intent is to warn the driver and the passengers to beĀ careful while backing up in case the car collides with something which is closer than it actually seemsĀ in… Continue reading The Planck Scale May Be Closer Than It Appears