Quantum Technology in Telecommunications
Operators already sell quantum services. Orange launched Quantum Defender, which combines quantum key distribution with post-quantum cryptography, in the Paris region in June 2025. China Telecom reported 7.2 million quantum communication subscribers in its results for the first half of 2026. Telefónica runs a QKD pilot for Spain’s Policía Nacional. Deutsche Telekom and Qunnect distributed entanglement over 30 km of deployed Berlin fiber at 99% fidelity.
Today, operators get the most from quantum technology in timing and synchronization, and in quantum random number generation. QKD suits selected links where customers or regulators ask for it, always alongside post-quantum cryptography, and quantum repeaters remain in the laboratory. In this course, we cover what quantum networking, computing and sensing can do for operators, how to judge each claim, and what to prepare now.
Course Outline
Module 1. Judging Quantum Claims (45 minutes)
Quantum computing, sensing and networking mature at different speeds, and each needs its own tests. We separate results demonstrated on hardware from company announcements and from resource estimates. We also separate the physical qubits in current machines from the logical, error-corrected qubits required for useful computation. You learn to ask which classical method a result was compared with, and which roadmap dates are commitments and which are targets. We test each question on a recent operator result, a network optimization claim that names no classical baseline.
Module 2. Quantum Networking for Operators (75 minutes)
We cover quantum key distribution from metro links to long-haul networks, including twin-field QKD over 254 km of deployed fiber and satellite QKD. We explain trusted nodes, key rates over distance and loss, and why four European agencies say fiber-based QKD cannot deliver end-to-end security over long distances. We cover entanglement distribution and quantum repeaters. The milestone to watch is a repeater link across a metro network that removes trusted nodes. We also cover the business case for QKD services, from defense in depth for banks to public funding through EuroQCI.
Module 3. Timing, Randomness and Network Optimization (45 minutes)
We cover enhanced primary reference time clocks with caesium holdover and chip-scale atomic clocks at cell sites. We also cover optical clocks moving toward field use. We cover quantum random number generators for key generation. We then review the network optimization claims made for quantum annealing, from paging at NTT DOCOMO to AT&T’s workloads, and why neither names a classical baseline. We explain why we do not expect gate-model advantage on telecom optimization this decade.
Module 4. What Operators Are Doing (30 minutes)
We review named programs and what each result shows. They include Orange Quantum Defender, China Telecom’s quantum services, BT and Toshiba’s London trial, Singtel’s national quantum-safe network and Telefónica’s QKD pilots. We also cover Deutsche Telekom’s entanglement trial, IonQ’s purchase of a controlling stake in ID Quantique with its SK Telecom partnership, and NTT DOCOMO’s production use of annealing. For each, you learn whether it reports a commercial service, a field trial or an announcement.
Module 5. Preparing Now (45 minutes)
We start with the steps the evidence supports today: enhanced timing at core sites, chip-scale clocks at the edge and quantum random number generation. You learn to pilot QKD only on links where customers or regulators ask for it, always with post-quantum cryptography. You also learn to require standard key-management interfaces such as ETSI GS QKD 014. We cover how to check the figures in vendor-contributed industry documents before you put them in a board paper. In a working exercise, you draft a one-page quantum brief for your leadership.
Prerequisites
None.
Who this course is for
Operator executives, program managers, network strategy and architecture leads, network engineers and product managers for security services at fixed, mobile and satellite operators. Also useful for network equipment vendors, and for regulators who oversee telecom security.
What you’ll be able to do afterward
- Explain what quantum networking, computing and sensing can and cannot do for operators today
- Judge a QKD claim by key rate, distance, loss and the number of trusted nodes
- Tell a commercial service from a field trial, a lab result or an announcement
- Build a business case for quantum-safe network services that combines QKD with post-quantum cryptography
- Assess the timing and random-number products operators can deploy now
- Plan pilots, standards and skills for the next five years
What you leave with
When you finish, we email you the course handbook, a PDF of every slide with notes that explain it in full. It includes a table of the use cases covered, each labelled as demonstrated, announced or estimated, with its sources. We also include a PDF copy of Quantum Systems Integration. The handbook is yours to keep.
Enrollment includes 180 days of access to the online on-demand course. Where that course is not yet published, the 180 days start on the day it is.
Where this course fits
You can take this course on its own. No technical background is assumed. For the security side, take Quantum-Safe Telecommunications. Network teams can continue with Quantum Networking and QKD Essentials, and engineers who will build quantum networks with Certified Quantum Network Engineer (CQNE) Training.
Why we teach this
The material is based on Quantum Systems Integration, the reference text on quantum computing, networking, and sensing written by the course author. It also draws on faculty who work with quantum engineering and integration teams, and on the published resource estimates for each use case. We label every result in the course as demonstrated on hardware, announced by a company or estimated, so you can see how far each one has progressed.
Certificate of Completion
Upon completion, you receive a Quantum Academy certificate of completion. It confirms that you completed the course and is separate from Quantum Academy’s professional certifications.
About this program
Quantum Academy credentials are private professional credentials issued by Quantum Academy, a trade name of Post-Quantum Institute. They are not government-issued licenses, accredited degrees, or academic credit, and earning one does not guarantee employment, promotion, regulatory approval, or any other specific outcome.
Quantum Academy programs are educational and informational only, and are not legal, compliance, or engineering advice.
