DNA Double Helix A new study suggests quantum entanglement might be responsible for holding DNA together. Wikimedia commons/Dennis Myts

A new research paper brings new meaning to the joke that all science is just physics. A team of scientists at the National University of Singapore suggests that it is quantum entanglement that holds our DNA together.

It's hard to prove, but it would be a potentially explosive finding, as Technology Review explains.

In quantum entanglement, two objects are connected by an invisible wave, like an umbilical cord, that allows them to essentially share the same existence. When something happens to one object, it immediately happens to the other, no matter how far apart they are.

Elisabeth Rieper and colleagues at the National University of Singapore say this entanglement might prevent the DNA double helix from shaking itself apart.

Technology Review's blog provides a nice description of some complex physics. Here's a breakdown:

Rieper and colleagues used a theoretical model of DNA in which each nucleotide consists of electrons orbiting a positively charged nucleus. The movement of the negative cloud is a harmonic oscillator.

When the nucleotides bond to form a base pair, the clouds must oscillate in opposite directions or the structure won't be stable. Rieper and colleagues asked what would happen to those oscillations when the base pairs are stacked in a double helix.

The helix should vibrate and fall apart, but it doesn't. Rieper and co. say this is because the oscillations occur as a superposition of states -- meaning they oscillate in all possible states at once. That effectively holds it all together.

The question is how to prove all this, as Tech Review notes. Rieper and co. say that in a standard analysis, there's not enough energy to hold DNA together, but their quantum theory makes it work. Still, that's not enough experimental evidence to prove that biology, too, is really just physics.

[Technology Review]

10 Comments

correct me if im wrong but quantum entanglement gives no bonding characteristics and based on the way DNA is made, cannot be present

intriguing, but further research is needed

if this proves to be true, than maybe other biological processes involve "spooky" action, telepathy perhaps?

While their model may have some things to say about certain types of polymers, "electrons orbiting a positively charged nucleus" is not a good model for hydrogen bonds. The whole point of a hydrogen bond is that there are at least two nuclei involved, one of which pulls the electron cloud more strongly than the other to create a strong dipole.

Creating a good computational model for an electron cloud is a nice achievement, but I believe they attempted to connect their work to DNA just to sensationalize it and get more attention.

I cant wait to see how deepak chopra spins this into his idiotic theorys

@Jedigeek93: "if this proves to be true, than maybe other biological processes involve "spooky" action, telepathy perhaps?"

This really isn't all the far fetched. Many philosophers have talked about the following. Thought is energy, every we know in the universe is essentially made of energy. It either is energy or vibrating energy. And when it comes down to it an atom is simply information. The quantum information of its position in space in time. In short we are hear because we think we are here. Its the idea of the entire universe being part of one giant collective consciousness. Quantum entanglement can fall into this theory and explains other strange things like telepathy, etc. We can move or change big things becuase we are such a tiny tiny part of the entire hole. They have been cases when large groups of people have impacted certain events. I am not saying I believe in it, but it makes some kind of sense and is fun to think about.

If what the reaserchers are saying is correct then all one would have to do is "observe" the electron cloud to cause the decoherence to disrupt and cause the system to break down into a clasical non-entangled system.

If this is what is holding the DNA strand intact it would then break down and you would have significant evidence to the entangelment theory.

It must be rather difficult to observe the electron cloud or DNA would be breaking down all the time. Maybe observation naturally occurs but at a very small scale which could explain the eventual decay of DNA replication.

Also if you could hit someone with some kind of measurement beam you could disrupt all their DNA at once and kill them almost instantly. Death ray anyone?

So based on a contrived non-physical model of DNA, they have then concluded that a contrived quantum principle is what is responsible for holding together their contrived non-physical model of DNA?

Just like a physicist.

"Let's model a cow as a round metal sphere in a vacuum."

Kudos if this can be proven, but these days 'quantum entanglement' is all the rage and I have my doubts.

Dear Popsci...
Quanntum entanglement and superposition are 2 different things!

first it says quantum entenglement, and later on it says superposition.

You've made this mistake earlier at photon superposition saying it was quantum entanglement...

@Jedigeek93,@inaka_rob: Quantum entanglement in DNA as a mechanism for telepathy. The existance of telepathy has which has never been proved. Talk about 'energy' and 'vibrations' is all just nonsense and not science at all


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