Storing information in Diamond
Scientists have successfully teleported information in a diamond. It is expected to bring super dense storage chips as the information is stored at quantum level making it ultra compact.
Storage is getting smaller and smaller. Things have gotten so small that it has begun to affect the material used in making storage devices. Voila! Why not store information at the molecular level?
Storing information in Diamond:
Japanese researchers from Yokohama National University have done just that. They have teleported information into a diamond successfully. The technique involves the manipulation of electron and carbon isotopes inside a diamond by creating an oscillating magnetic field around the diamond.
This is possible because of a unique defect found in the structure of diamonds. Diamond has a crystal structure (symmetrical in three dimensions) and is made up of Carbon. But this structure has a defect called nitrogen-vacancy centre. Basically, there are holes in the structure. These defects are negatively charged, but scientists can give it a neutral charge by directing laser beams on them.
Scientists used microwave and radio waves to entangle the electron and the carbon atoms nucleus. Entanglement is a phenomenon that occurs at quantum level. In this particles start behaving like each other, even if they are separated by a long distance.
Then they sent information in the form of photon. The electron that was already entangled to the carbon atoms nucleus absorbed this photon. Quantum entanglement involves taking information from one place and recreating it in another.
How are they similar to CD/DVD:
Earlier, scientists had realised that these defects can help in storing information. Like how microscopic pits in CDs and DVDs help encode bits of data. Data is stored in CD in a sequence of 'Pit' and 'Land'. Both of these represent 0 and 1. And their sequence is based on the information.
"We are the first group to demonstrate the possibility of using diamond as a platform for the super dense memory storage," said the lead author of the study Siddharth Dhomkar.
How are we going to read and write data in Diamonds?
According to scientists, the data stored on diamond in the form of negatively and neutrally charged defects can be read using a laser. But, scientists currently don’t have such tiny features that can read or write data. They are exploring ways to read and write data from nano-size bits on diamond crystals.
Benefits of storing information on Diamonds:
These defects are very small in size, so the information will be stored in a space equivalent to a few nanometres. This is an advantage over the storage devices we use currently. It will help us in creating super dense computer memories.
These diamond based storage disk can store 100 times more data than a typical DVD. Storage density of these diamond chips are expected to be far greater than a conventional hard disk drive.