Quantum London. An interview with Andrew Lord.

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The Quantum Divide

Dan Holme

32 episodes

1 day ago

The Quantum Divide is a podcast focussing on quantum technology, with a slant towards networking. Do you work in the IT industry, want to learn about quantum technologies, and are daunted by the extraordinarily high bar for deep comprehension? Yeah, me too. Join our podcast to hear interesting talks about quantum technology concepts, and fascinating interviews from individuals in the industry. (Opinions expressed by Steve & Dan belong only to them, and not their employer)

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Quantum London. An interview with Andrew Lord.

The Quantum Divide

55 minutes 46 seconds

1 year ago

Quantum London. An interview with Andrew Lord.

This week, my esteemed guest is Andrew Lord from BT. Andrew recounts his transition from a fresh Oxford physics graduate to becoming an influential figure in the UK's optical and quantum industry. Our conversation takes us from the roots of subsea telephony to the cutting-edge developments in fiber optics, including the transformative impacts of WDM and the coherent revolution. Andrew sheds light on the ongoing optical research at BT and shares his insights on the applications of fiber optics in the renewed exploration of quantum technologies. In this episode, we navigate some complexities of Quantum Key Distribution (QKD) and its role in building scalable quantum networks. Andrew walks us through the groundbreaking trial in the Bristol and the advancements made during the subsequent London trial with Toshiba. The discussion unveils the architecture needed to efficiently connect customers and the integration challenges of quantum equipment with existing telecom frameworks.

Hear how practical key management and security considerations come into play when servicing multiple clients and how pioneering companies like EY and HSBC are pushing the boundaries towards commercial quantum network viability. Rounding off, Andrew and I tackle the hurdles of quantum network implementation, focusing on the implications of coexisting quantum and classical channels within the same fiber. We delve into the nuances of fiber performance, the impact of reflections and Raman scattering, and wavelength selection. We close with a look ahead at the future of quantum security, where QKD meets the demands of an ever-evolving cyber threat landscape. Tune in as we discuss the potential harmonious coexistence of Post-Quantum Cryptography with QKD to safeguard the most sensitive data at the core of our networks.

(01:20 - 04:28) Andrew and BT's Background in Quantum (188 Seconds)

(15:00 - 16:49) Scaling a Quantum Network for QKD (109 Seconds)

(24:30 - 25:06) One-Time Pair Encryption With QKD Keys (36 Seconds)

(28:53 - 30:48) Coexistence Challenges in Quantum Networks (115 Seconds)

(33:56 - 34:59) Options for Customer Network Encryption (63 Seconds)

(38:34 - 39:06) Standards and Assurance in QKD (32 Seconds)

(45:11 - 46:30) Future Market for Quantum Key Distribution (80 Seconds)

(49:10 - 51:03) Enhancing QKD With Satellite Technology (113 Seconds)

(52:12 - 54:09) Exploring the Future of Quantum Communications (116 Seconds)