Physicists Employ Berry’s Phase to Control Quantum Interference

Researchers from the Centre for Quantum Photonics (CQP) at the University of Bristol have shown that quantum interference between photons can be fine-tuned by employing Berry’s phase.

The study offers a method to devise robust circuits for the next generation of photon-based quantum simulators. These simulators are devices of photons developed for simulating other quantum devices and are envisaged to be physically implemented ahead of the quantum computer. The study is a marriage of two significant developments at Bristol, namely, the geometric phase effect formulated by Professor Sir Michael Berry at the School of Physics and the current research initiatives in quantum technologies undertaken at CQP.