British Telecommunications Public Limited Company

The secure transfer of information is fundamental to society and business, protecting personal privacy, financial transactions, sensitive corporate data, and government services. However, this foundation is under threat from vulnerabilities of conventional cryptography that can be exploited by the emergence of quantum computers and AI. Quantum key distrib...

Based on quantum mechanics, which is our most fundamental description of the universe, quantum computers represent a boundary for what can be computed, simulated, and modelled. Yet down at this microscopic level, physical systems are fragile, unstable, and quickly degrade to produce our familiar and predictable classical world. Building hardware that avoi...

New security technologies based on quantum physics require work to ensure consistency and quality of the technology. The aim of this project is to establish a methodology for the assurance of quantum systems. Assurance enables trust in the performance of the technology, and ensures that technology meets requirements. Assurance is therefore essential when ...

_All telecommunications systems, which transmit data from device to device, whether through optical fibre between continents or through the air between mobile phones and radio masts, fundamentally rely on 1\. carrier synchronisation, determining the frequency used to send the data (whether that be visible, microwaves, or radio waves), and 2\. clock synchr...

As technology advances, self-driving vehicles will begin to appear on our roads, providing environmentally-friendly shuttle services that bring a number of benefits for passengers and society at large. To function effectively, the vehicles will require uninterrupted communications to ensure they maintain full awareness of the environment around them, to s...

BT and Stratospheric Platforms Limited have come together with a vision of using an H2 HAPS platform to provide 5G cellular coverage over a wide area from a single aircraft. Used for both private groups, such as disaster first responders and security oriented teams over sea or land, or the general population the project will investigate advanced antenna t...

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Optimisation and constraint satisfaction problems are ubiquitous in industry, ranging from straightforward tasks such as arranging a timetable to exceptionally challenging ones such as laying out a telecommunications network or a high-performance integrated circuit. Problems like this are associated with the need to search over exponentially many potentia...

ORSAM seeks to address the critical national infrastructure challenge of delivering cost effective, resilient, distributed timing within the telecommunications core and mobile access networks that we all depend on to deliver the emergency service network, data centre access and interconnect, Industrial IoT, financial transactions and nearly all other form...