Science Articles

THE PROMISE OF QUANTUM COMPUTING BY THE ULTRACOLD MOLECULES

The researchers have started implementing steps to make the very first quantum computer, a long dream, which can carry out the calculations and the computations many times faster than the traditional computers for each and every kind of problem.

The researchers have started implementing steps to make the very first quantum computer, a long dream, which can carry out the calculations and the computations many times faster than the traditional computers for each and every kind of problem. The new research work indicates that the group of ultracold molecules have the ability to recall the information that is stored in them. This has increased multiple times than what was previously conceived.

Ultracold molecules are made of two atoms of sodium and potassium by cooling them down to the temperature which lay at ten-millionths of a degree above the absolute zero. Qubits are the basic building blocks of the quantum computers.

 

USING MOLECULES INSTEAD OF ATOMS FOR CREATING QUBITS

Even though the quantum computers haven’t been completely realised yet, efforts are being taken to create qubits. Superconducting materials have been used in the past along with the ions that were held in the ion traps, as well as neutral atoms were used for creating the qubits- without any success. The new approach towards qubit implements the use of a cluster of molecules which are made up of only two atoms.

Martin Zwierlein, the MIT professor of physics, claims that atoms have fewer handles than the molecules which enable the molecules to rotate, vibrate, and even interact with each other. Molecules can interact with another molecule owing to their ability to see another molecule despite the long range of distance.

This gave rise to the idea of using molecules in the production of qubits instead of atoms.

 

ADVANTAGES OF USING MOLECULES

Steps are being taken for understanding the storage of quantum information in the dipolar molecules for a longer period of time. Molecules use their physical system for storing and processing the quantum information which is a rare feature amongst the group of qubit systems present today.

The researchers chose the two atom structure owing to the fact that it takes a long time to the cool down the molecules which have alarger number of atoms. Researchers made the molecules come under perfect control i.e. in the lowest state of their rotation, vibration and nuclear spin alignment.

The microscope can be used for examining and revealing the final results. Such system can be used for carrying out the quantum computations called as gates in the sequence of coherence.  Sebastian Will, the former research scientist at MIT, claims that if the researchers get successful in trapping the molecules than they can hope to implement the quantum gate operation.

By using 1000 such molecules are more, it would enable the scientists to carry out complex calculations which are too complex for the existing computers to solve. This offers a potential of carrying out the precise measurements in the field of quantum chemistry also.