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

Research

Euler’s Homogenous Function Theorem

Homogenous Functions A homogenous function of order $n$ satisfies: $$ f(\lambda x_1, \lambda x_2, \ldots, \lambda x_m) =\lambda^n f(x_1, x_2, \ldots, x_m) $$ For e.g. $$ f(x,y) = \sqrt{x} y^2 $$ is homogenous of order $n = 3/2$ . However: $$ f(x,y) = \sqrt x y^2 + x^2 y^2 $$ is not a homogenous function… Continue reading Euler’s Homogenous Function Theorem

Research

Euler’s Theorem and the Smarr Relation

The area of a charged rotating (Kerr) black hole is given by \begin{equation} \label{eqn:kerr-area-relation} A = 4\pi \left[ 2 M^2 + 2 (M^4 – L^2 – M^2 Q^2)^{1/2} – Q^2 \right] \end{equation} This relation can be inverted to express the mass $M$ as a function of charge $Q$, area $A$ and angular momentum $L$: \begin{equation}… Continue reading Euler’s Theorem and the Smarr Relation

Blogging

Plugins for Migrating WordPress Installations

For anybody who manages a wordpress installation, a question that inevitably arises at some point or another is how to migrate their site from one hosting provider to another. Ideally, any such migration tool should have the following capabilities: Allow backup files of a reasonable size say 512 MB or 1 GB for free Allow… Continue reading Plugins for Migrating WordPress Installations

General

How to kill a great platform

There are few things in life more disappointing than watching a beautifully crafted, socially responsible, disruptive technology platform self-destruct from the inside out. With the launch of the so-called “web-extensions” versions of Mozilla Firefox – which now extends to the once reliable ESR (Extended Support Releases) branch – Mozilla has destroyed much of the appeal… Continue reading How to kill a great platform

Research

EVONET18 – Tensor Networks for One and All

So one month ago there was this wonderful workshop on “Optimising, Renormalising, Evolving and Quantising Tensor Networks” – or EVONET18 – organized by the Max Planck Institute for Complex Systems (MPIPKS) in Dresden, Germany. I was fortunate enough to be selected for a poster presentation and had the great privilege of mingling and discussing physics… Continue reading EVONET18 – Tensor Networks for One and All

Lists · Research

Theoretical Physicists in India

There are many research centers and researchers in India working in hep-th (High Energy Physics, Theory), gr-qc (General Relativity/Quantum Cosmology) and quant-ph (Quantum Physics). However they are scattered all over the place and I have not been able to find a place which lists the names of places and individuals working in these fields in… Continue reading Theoretical Physicists in India

Politics

Competitive Nationalism and (the myth of) Islamic Homogeneity

Recently the Chief Minister of Karnataka, Mr. Siddharamaiah, made the following observation on twitter regarding the recent communally motivated murders in the Dakshin Kannada (South Karnataka) district. Expressing grief as the deaths of both victims from different communities, he described the tragic incidents as the results of “competitive fanaticism” between extremists on either side This… Continue reading Competitive Nationalism and (the myth of) Islamic Homogeneity