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# Going Quantum: The future of the internet ...

Building a quantum internet requires abandoning classical data processing paradigms. Discover how engineers leverage entanglement and quantum teleportation to construct an exponentially powerful, spoof-proof distributed cloud.

- **Speakers:** Alexander Pirker
- **Event:** World Congress 2023
- **Published:** September 21, 2023
- **Duration:** 28:04
- **URL:** https://www.wearedevelopers.com/videos/672-going-quantum-the-future-of-the-internet

## Summary

The future of quantum technology promises massive leaps forward in secure communications, chemistry simulations, and distributed cloud computing. Building toward a "quantum internet" requires moving away from the familiar paradigms of classical architecture—which rely on sequential data processing—toward systems leveraging superposition, quantum unitary gates, and complex qubits. This transition demands novel infrastructure because the fundamental nature of quantum mechanics introduces complications, such as probabilistic measurement outcomes that irrevocably alter the exact state of the data itself.

To construct a functional network, the concept of quantum entanglement plays a starring role. When nodes share heavily correlated Bell states or multi-party configurations, they maintain an uncopiable, spoof-proof connection regardless of immense physical distance—a phenomenon famously described as "spooky action at a distance". However, unlike traditional data packets, qubits are highly fragile and quickly undergo decoherence. Furthermore, due to the fundamental No-Cloning Theorem, they cannot be simply intercepted, copied, and re-transmitted. Quantum repeaters bypass this limitation by implementing sophisticated error-correcting formats, like the Shor code, alongside quantum teleportation to securely stitch together extended pathways of entanglement.

Looking forward, measurement-based quantum computation could allow isolated data centers to act as a unified, exponentially powerful processing resource via entangled "cluster states". Realizing these ambitions requires overcoming profound structural and operational barriers. The industry currently lacks formalized entanglement-based routing algorithms—since classical pathfinding methods fail at modeling multi-party constraints—as well as defined hardware standards parallel to the traditional OSI networking stack. Unlocking a viable quantum internet depends entirely on establishing rigorous protocol standardization, tackling classical overhead latency for synchronizing nodes, and bridging the overarching interoperability gap between theoretical physics and applied network engineering.

**Keywords:** quantum computing superposition, qubit state measurement, quantum unitary gates, quantum system entanglement, bipartite bell states, shor algorithm cryptography, quantum sensor synchronization, quantum no-cloning theorem, quantum repeater technology, quantum error correcting codes, quantum state teleportation, measurement-based computing, entangled cluster states, distributed quantum cloud, quantum stack interoperability, quantum layer modeling, multipath entanglement routing

## Chapters

1. **Classical computing versus quantum superposition capabilities** (00:02) — How quantum computing leverages superposition to evaluate multiple values simultaneously compared to sequential classical methods.
1. **Mathematical structure and operational behavior of qubits** (02:32) — Defining qubits as vectors with complex coefficients and manipulating them using unitary matrices and probabilistic measurements.
1. **Principles of quantum entanglement and state correlation** (05:45) — How perfectly correlated quantum states enable advanced secret sharing schemes and unbreakable cryptographic keys among multiple parties.
1. **Practical applications of quantum computing and cryptography** (09:55) — Deploying quantum computing for secure key exchanges, sensor networks, and breaking modern cryptographic systems via factorization.
1. **Solving quantum decoherence with repeaters and error correction** (11:32) — Addressing the no-cloning theorem and signal degradation using quantum error-correcting codes and sophisticated intermediate repeater stations.
1. **Leveraging quantum teleportation for long-distance data transmission** (14:26) — Creating long-distance entanglement by linking small segment connections and transmitting states via probabilistic Bell measurements.
1. **Scaling distributed processing through measurement-based quantum computing** (17:05) — Connecting individual data centers through massive entangled cluster states to exponentially scale cloud computing resources.
1. **Structuring connectivity with a formal quantum network stack** (20:02) — Defining structural layers and routing protocols to build interoperability across independent quantum network topologies.
1. **Engineering challenges in standardizing quantum network infrastructure** (22:54) — Addressing open scaling issues like component standardization, fault tolerance, classical messaging overhead, and multiparty entanglement routing.
1. **Q&A on maintaining non-physical connections through entanglement** (27:01) — Clarifying how quantum network devices can stay logically linked without a physical connection after the initial correlation.

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