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Quantum Entanglement within DNA
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[quote:Anonymous Coward 76658155:MV80MTM3Mzc5Xzc1MTQyMzQ3XzQwNTYxMTY3] DNA can discern between two quantum states Prof. Ron Naaman of the Institute's Chemical Physics Department (Faculty of Chemistry) conducted research which appeared recently in Science, that shows that a biological molecule -- DNA -- can discern between quantum states known as spin. But biological molecules have another property: they are chiral. In other words, they exist in either "left-" or "right-handed" forms that can't be superimposed on one another. Double-stranded DNA molecules are doubly chiral -- both in the arrangement of the individual strands and in the direction of the helices' twist. Naaman knew from previous studies that some chiral molecules can interact in different ways with the two different spins. The researchers fabricated self-assembling, single layers of DNA attached to a gold substrate. They then exposed the DNA to mixed groups of electrons with both directions of spin. The biological molecules reacted strongly with the electrons carrying one of those spins, and hardly at all with the others. The longer the molecule, the more efficient it was at choosing electrons with the desired spin, while single strands and damaged bits of DNA did not exhibit this property. These findings imply that the ability to pick and choose electrons with a particular spin stems from the chiral nature of the DNA molecule, which somehow "sets the preference" for the spin of electrons moving through it. http://www.sciencedaily.com/releases/2011/03/110331104014.htm [/quote]
Original Message
This area of research started as a new way to understand the vibrational modes within and between the nucleic acids of DNA.
Models of these vibrational modes started out as classical, binary models of the Van der Waals and Dipole-Dipole interactions. But, the emergence of quantum mechanical models in chemistry led some scientists to ponder on the possibility that these classical biological models could be pinned to a series of entanglements, which would explain the two biggest flaws of the classical systems: time and distance.
The first paper that really grabbed my attention on the idea of quantum entanglement in DNA was a paper published by Elisabeth Rieper from the National University of Singapore (NUS) in 2010. Titled “Quantum entanglement between the electron clouds of nucleic acids in DNA”. The team came to this conclusion after setting up quantum harmonic oscillators to act as the distribution mechanism for electrons in a dipole-dipole interaction between each of the nucleic acids. When they set this up, they saw that the time taken for the oscillators to operate and the way in which they operated was the same as what was observed naturally within DNA.
Thus, based on the energy within each nucleic acid, DNA could be a set of quantum entanglements that occur at room temperature.
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