BGU Researchers Observe Geometric Phase, Which May Enable Revolutionary Quantum Technology

Quantum technology is poised to be the hot new technology of the 21st century and billions of dollars are being invested in the field as a result, with the expected investment going up to tens of billions in the coming years. Quantum clocks, computers, communications, sensors, are either here or just around the corner. Ben-Gurion University of the Negev is also investing heavily in this field, with impressive results.

BGU recently supplied Israeli industry with next generation atomic clocks and next generation atomic magnetic sensors. BGU researchers won a European grant to use quantum technology for medical sensing. Scientists at BGU are constructing futuristic atomic clocks, the likes of which can only be seen in a select few places in the world.

Now, in an experiment at BGU, a very fundamental and unique effect of quantum mechanics has been observed in single isolated atoms, called geometric phase. A geometric phase appears when an atom is manipulated to evolve on the surface of a sphere, where the sphere is defined in the parameter space of the system.

The observed effect may be used in quantum computing, to sense Earth’s gravitational field, e.g. to find minerals and water, and in fact may be used in the accurate manipulation of any quantum system (optimal control).

The work was conducted in The Atom Chip Lab of Prof. Ron Folman in cooperation with Prof. Yigal Meir and researchers Dr. Samuel Moukouri, Dr. Zhifan Zhou and Dr. Yair Margalit.

BGU is now working on furthering the understanding of this effect and how to utilize it in advanced quantum technologies.

The project was funded by the Israel Science Foundation and by a German-Israeli DIP grant.

In Israel’s Negev desert, Ben-Gurion University of the Negev does the remarkable. Marking 50 years of cutting-edge science, BGU tackles humanity’s greatest challenges in the 21st century.

These findings were just published February 28 in a new article in Science Advances.