Published: 18 June 2014

Quantum technology project wins £125K funding

Dr Eran Ginossar has won an EPSRC first research grant to fund a project that could help improve the efficiency and speed of computers in the future.

Compared to today’s state-of-the-art computers, next generation quantum computers, based on quantum information processing, offer a step-change in the speed and quantity of data that can be processed. This technology will be vital in enabling computers to handle ever-increasing data requirements.

"By applying this technology, [...] we hope to be able to maximise the efficiency of quantum computers"

- Dr Eran Ginossar

Based in Surrey’s Advanced Technology Institute (ATI), Dr Ginossar aims to tackle one of the major challenges in quantum information processing: controlling the basic constituents of the quantum computer (‘qubits’). Funded by the EPSRC (Engineering and Physical Sciences Research Council), his research will explore the use of squeezed microwave radiation sources to control and measure qubits in the architecture of superconducting devices. This is a move away from current experimental methods, which only employ coherent, classical microwave fields.

“Strong, high quality sources of non-classical squeezed microwave radiation have become widely available at specialist laboratories,” explained Dr Ginossar. “By applying this technology to quantum information processing, we hope to be able to maximise the efficiency of quantum computers.”

He added: “It is exciting to work on such a fundamental aspect of quantum mechanics. The EPSRC grant will enable us to speed up our efforts in this area. Quantum technology was a topic that always fascinated me as a student, and it is even more fun when people see a way that these things could be relevant for a future technology.”

A lecturer and researcher in the ATI and Department of Physics at Surrey since 2011, Dr Ginossar is an expert in the physics of superconducting circuits and quantum optics. Last year he published a paper on the effect of a quantum light on an artificial atom in the ‘Nature’ journal, ‘Reduction of the radiative decay of atomic coherence in squeezed vacuum’. The research, conducted in collaboration with researchers from the University of California Berkeley and MIT, represented a breakthrough in experimental methods and manipulation of the external environment for future computers.

Dr Ginossar’s current project, ‘Theory of control and quantum state measurement with squeezed microwaves in superconducting circuits’, will run for 15 months from September 2014.

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