New-gen optical fibres for the age of quantum computing

Revolutionizing Data Transfer with Specialty Optical Fibers for Quantum Computing

Researchers at the University of Bath have made significant strides in developing specialty optical fibers to meet the challenges of data transfer in the era of quantum computing. These new fibers are set to revolutionize the field of quantum technology, offering unparalleled computational power and paving the way for groundbreaking advancements in various fields.

The traditional optical fibers used in current cable networks may not be suitable for quantum communications due to their solid cores. In contrast, the specialty fibers created at Bath feature a micro-structured core with a complex pattern of air pockets running along the entire length, making them ideal for quantum technologies.

Dr. Kristina Rusimova from the Department of Physics at Bath explained, “The conventional optical fibers in our telecommunications networks transmit light at wavelengths determined by silica glass losses, which are not compatible with the requirements of quantum technologies such as single-photon sources and qubits.”

These innovative fibers are designed with quantum computers in mind, laying the groundwork for future data transmission needs. Quantum technologies harness the unique properties of individual light particles, or photons, enabling phenomena like quantum entanglement that promise unparalleled computational power.

Dr. Cameron McGarry, the lead author of the research paper, emphasized the importance of a quantum internet in unlocking the full potential of quantum technology. He highlighted the need for specialized optical fibers to support long-range communication and quantum repeaters.

Specialty optical fibers developed at Bath offer a range of capabilities for quantum computation, serving as sources of entangled photons, quantum wavelength converters, and quantum memories. These fibers enable researchers to manipulate light properties, create entangled photon pairs, and even trap individual atoms within the fibers.

Dr. Alex Davis, an EPSRC Quantum Career Acceleration Fellow at Bath, underscored the significance of optical fibers in generating exotic quantum states of light with applications in quantum computing and message encryption.

While the concept of quantum advantage, where a quantum device surpasses a conventional computer, has yet to be definitively proven, the challenges outlined in the research paper are expected to drive new directions in quantum research. The specialty optical fibers developed at Bath are poised to play a pivotal role in shaping the future of quantum computing.

Journal Reference:

  1. Cameron McGarry, Kerrianne Harrington, Alex O. C. Davis, Peter J. Mosley, Kristina R. Rusimova. Microstructured optical fibers for quantum applications: Perspective. Applied Physics Letters Quantum, 2024; DOI: 10.1063/5.0211055