Sunday, August 28, 2011

Irrelevant news from nature to loop quantum gravity

Today I read this article from BBC that LHC results put supersymmetry theory in trouble.

The results do not rigorously demonstrate anything because Strings can exist without low-energy supersymmetry of Loops with supersymmetry. I do not understand why the community of loop quantum gravitists are this much happy about it?! Its certainly bad news for preliminary string theory, but how about loop quantum gravity? Loop Quantum Gravity does not rely on superstring theory but it can certainly handle that. Loop quantum gravity certainly is an alternating theory, but there are many other candidates to seek for using the foundations of quantum mechanics.

But certainly this result is without doubt so important to be argued for a long time between experts.

Wednesday, August 17, 2011

The paper of Kondo noise ...

I and Frank worked on it, was accepted for publication in Physical Review B in the third week after submitted. This is a new score in short-time reviewing process perhaps because we paid it off from working on it for almost a year!

If you are working on the critical current noise in superconducting materials or in general you deal with superconducting qubits or SQUIDS, reading this paper is highly recommended.

You will find in it a good analytical approach to understand the complicated physics of a magnetic impurity inside a Josephson junction. With the consistency it provides with the Wilson type renormalization group method so far was used in the Kondo community, it equips us to study the critical current noise in a tunnel junction in the presence of a few free Oxygen molecules inside the tunnel junction oxide layer.