Tag Archives: Mark Pallen

Darwin theme: Rap about Darwin & evolutionary biology and Darwinism in quantum dots

You wouldn’t expect someone with this pedigree,

… Professor of Microbial Genomics at the University of Birmingham since July 2001. … is dually qualified as a scientist (PhD) and as a medic/clinical bacteriologist (MBBS, MRCPath), and benefits from Research-Council funding for both bioinformatics and laboratory-based molecular bacteriology projects. His interests focus on bacterial pathogenesis and the exploitation of sequence data, particularly genome sequence data.

to commission a piece of rap music but that’s just what Professor Mark Pallen did last year to honour Darwin’s anniversary (150 years since the publication of Darwin’s theory and 200 years isnce his birth). He contacted Baba Brinkman, a Vancouver, Canada -based rap artist, to commission a series of raps about Darwin and evolutionary biology. The project has become The Rap Guide to Evolution. You can find more about the work at Pasco Phronesis (thank you for the pointer) which also features a number of Brinkman’s videos. There’s also a Brinkman ‘evolutionary’ video on the CBC 3 (Canadian Broadcasting Corporation) site. In that video, Brinkman spontaneously adds some lines to his rap. I don’t know if you’ve ever tried to improvise while you’re presenting for any length of time but it’s not easy and Brinkman actually manages to do this while rhyming about evolutionary biology in front of an audience that’s somewhere between 200 and 500 people (I can’t be sure of the number).

There are some places I don’t expect to see any mention of the theory of evolution and quantum theory is one of those places. From the news item on physorg.com,

Physicists have found new evidence that supports the theory of quantum Darwinism, the idea that the transition from the quantum to the classical world occurs due to a quantum form of natural selection. By explaining how the classical world emerges from the quantum world, quantum Darwinism could shed light on one of the most challenging questions in physics of the past century.

The basis of almost any theoretical quantum-to-classical transition lies in the concept of decoherence. In the quantum world, many possible quantum states “collapse” into a single state due to interactions with the environment. To quantum Darwinists, decoherence is a selection process, and the final, stable state is called a “pointer state.” Although pointer states are quantum states, they are “fit enough” to be transmitted through the environment without collapsing and can then make copies of themselves that can be observed on the macroscopic scale. Although everything in our world is quantum at its core, our classical view of the universe is ultimately determined by these pointer states.

How researchers have used quantum dots  to provide evidence of quantum Darwinism and the link from quantum physics to classical physics is covered in the rest of the news item. The researchers’ study is published here,

A.M. Burke. “Periodic Scarred States in Open Quantum Dots as Evidence of Quantum Darwinism.” Physical Review Letters 104, 176801 (2010). Doi:10.1103/PhysRevLett.104.176801