Researchers led by Professor Guido Burkard at the University of Konstanz developed a new approach to shield electric and magnetic noise for a short intervals.
A theoretical concept to realize quantum information processing has been developed by Professor Guido Burkard and his team of physicists at the University of Konstanz. The researchers have found ways to shield electric and magnetic noise for a short time. This will make it possible to use spins as memory for quantum computers, as the coherence time is extended and many thousand-computer operations can be performed during this interval. The study was published in the current issue of the journal Physical Review Letters.
Quantum computers have spin qubits and magnetic properties, which makes it important for various applications. The alignment of spins has to be done in a categorical way, otherwise they would move out of their discipline. Guido Burkard explains about magnetic field saying, “usually magnets are controlled by magnetic fields – like a compass needle in the Earth’s magnetic field. In our case the particles are extremely small and the magnets very weak, which makes it really difficult to control them.”
The researchers focused on theoretical models and calculations of quantum bits to find a way to guard the quantum bits from noise. The researchers say that controlling the noise for even a brief time would lead to carry out thousands of computer operations in these fractions of a second. The researchers are working with their experimental colleagues towards testing their theory in experiments.