My Blog

This is a space where I share my thoughts on numerous topics, press articles and interviews, and delve into some of the more complicated and frequently asked scientific questions.

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Why I wrote “Portals to a New Reality”

My new book is about the next revolution in physics. It explains in an accessible manner what I believe to be five key ‘thought experiments’ that will provide us with clues about what our next fundamental laws should be like. Each central chapter is about one such experiment – its motivations and how it will allow us to open a window on the future theory of physics.

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Quantum physics is relative too

It’s very popular these days to emphasise differences between quantum physics and the theory of relativity. Some people even maintain that some of these are irreconcilable, which is why – or so proponents of this view maintain – we will not be able to quantize gravity (gravity being captured by the general theory of relativity).

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Constrained or Unconstrained Quantum?

I’ve noticed something interesting a while ago, but I haven’t had a chance to blog about it yet. And I probably still wouldn’t have, but I was awakened from my incredibly comfortable lazy state (at least as far as blogging is concerned) by a recent Nature editorial on the interpretations of quantum physics.

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Physics Does Not Need Observers

Nothing in physics requires observers. This belief creates artificial problems like quantum measurement paradoxes. Physical systems are sufficient “observers” – entanglement does the work traditionally attributed to observation.

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Higgledy-Piggledy

John Wheeler, one of the legends of modern physics, used to say that “everything comes from higgledy-piggledy”. This was his usual reply to the question “Why quantum?”, to which no one has so far found an answer. Why is Nature fundamentally quantum mechanical, especially when it seems that there are so many other things that it could have been and so many different ways the laws of Nature could have come out to be?

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Media

As quantum mechanics turns 100, a new revolution is under way

One hundred years ago on a quiet, rocky island, German physicist Werner Heisenberg helped set in motion a series of scientific developments that would touch nearly all of physics. There, Heisenberg developed the framework of quantum mechanics. At the time, quantum theory was just a loose collection of ideas about the quirks of physics on the scale of atoms.

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