Quantum Computing

PostQuantum.com by Marin Ivezic – Quantum Computing, Quantum Technologies, Post-Quantum

  • Quantum Cynicism

    The Easiest Job in Quantum Computing – Being a Cynic

    Don’t mistake the noise of cynicism for the signal of intelligence. If someone validates themselves as a useless cynic - unwilling to provide anything beyond scoffs and derision - don’t waste your energy getting dragged into their performative pessimism. Instead, direct your attention to the genuine skeptics and curious contrarians who…

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  • Chief Quantum Officer CQO

    Why Companies May Need a Chief Quantum Officer (CQO)

    In my opinion, forward-thinking organizations should consider creating a Chief Quantum Officer (CQO) role. Much like those historical electricity executives, a CQO would spearhead the adoption of a disruptive technology that is revolutionary, promising - but widely misunderstood. It’s a provocative idea (even “a job title from Star Trek,” as…

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  • Magic States

    Magic States: A Key to Universal Fault-Tolerant Quantum Computing

    Magic states are special quantum states that enable the universal operations needed for any quantum algorithm, yet which are not themselves easy to produce or protect. In essence, magic states supply the "extra quantum sauce" that elevates a protected quantum computer from what could be emulated on a classical computer…

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  • Quantum Winter Warning

    Quantum Winter Warning: Why Overhype and the QCI Saga Could Chill Quantum Computing

    The saga of Quantum Computing Inc. is a stark illustration of what happens when hype becomes unmoored from truth. If the quantum field falls into the trap of overselling and under-delivering, we will hand ammunition to detractors and possibly induce the very “quantum winter” we all want to avoid. Investors…

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  • Quantum Decoherence

    The Many Faces of Decoherence

    Quantum computers hold enormous promise, but they face a stubborn adversary: decoherence. This is the process by which a qubit’s fragile quantum state (its superposition or entanglement) leaks into the environment and effectively "forgets" the information it was carrying. For today’s leading quantum hardware modalities – superconducting circuits, trapped-ion qubits,…

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  • Quantum Computers Classical

    What Quantum Computers Can Do Better Than Classical Computers

    Quantum computers already outperform classical computers on a few specialized tasks, and over the coming years that list of tasks will grow. They excel at problems where superposition and entanglement let them explore a vast landscape of possibilities in parallel and use interference to extract an answer – factoring numbers,…

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  • Logical Qubits Quantum

    The Rise of Logical Qubits: How Quantum Computers Fight Errors

    Logical qubits are the linchpin for delivering on the promise of quantum computing. They are the qubits as we wish we had them – long-lived and trustworthy – brought to life by the ingenuity of quantum error correction. By encoding information across many imperfect qubits, scientists have shown they can…

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  • Applied Quantum Secure Quantum Marin Ivezic

    Why I Founded Applied Quantum – The First Pure-Play, End-to-End Quantum Consultancy

    Applied Quantum is a firm that for the first time would be 100% dedicated to quantum technology services – not as a sideline, not as one emerging tech practice among many, but as the entire mission of the company, and it would cover the field end-to-end. We founded Applied Quantum…

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  • Quantum Programming Quantum Computing

    Quantum Programming: An In-Depth Introduction and Framework Comparison

    Quantum programming is an emerging discipline that challenges developers to think beyond classical bits and deterministic algorithms. Instead of manipulating binary 0s and 1s, quantum programmers work with qubits that can exist in multiple states at once and harness phenomena like superposition and entanglement to perform computations in fundamentally new…

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  • Amdahl’s Law AI Quantum Computing

    How Quantum Could Break Through Amdahl’s Law and Computing’s Limits

    Amdahl’s Law teaches us a humbling lesson about the limits of classical computing: there is always a portion that resists parallel speedup, chaining us to diminishing returns. We’ve coped by clever engineering – making that chain as short as possible – but not broken it. Quantum computing offers a bolt…

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  • Quantum South Korea

    Quantum Technologies and Quantum Computing in South Korea

    South Korea’s quantum technology ecosystem has rapidly matured from obscurity into a well-organized force. Backed by a clear national strategy and increasing investments, Korea is making its mark through cutting-edge research at top universities, substantial government support for quantum computing and communications, and active participation from industry giants and startups…

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  • Quantum Middle East

    Quantum Technologies and Quantum Computing in the Middle East

    Leaders in the Middle East are talking about quantum algorithms and national quantum computing hubs. And even about Quantum AI. The Middle East is determined not to miss out on the quantum revolution, and that determination is reshaping the tech narrative of this region. What’s behind this quantum push in…

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  • Fault-Tolerant Quantum Computing Race

    The Race Toward FTQC: Ocelot, Majorana, Willow, Heron, Zuchongzhi

    Quantum computing is entering a new phase marked by five major announcements from five quantum powerhouses—Amazon Web Services (AWS), Microsoft, Google, IBM, and Zuchongzhi—all in the last 4 months. Are these just hype-fueled announcements, or do they mark real progress toward useful, large-scale, fault-tolerant quantum computing—and perhaps signal an accelerated timeline…

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  • Quantum Geopolitics

    Quantum Geopolitics: The Global Race for Quantum Computing

    Quantum computing has emerged as a new frontier of great-power competition in the 21st century​. Nations around the world view advanced quantum technologies as strategic assets—keys to future economic prowess, military strength, and technological sovereignty. Governments have already poured over $40 billion into quantum research and development globally​, launching national…

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  • Quantum Use Cases Telecommunications

    Quantum Use Cases in Telecom

    Quantum computing’s impact on global telecommunications will be transformative. It holds the potential to revolutionize how we secure and operate networks, enabling levels of performance and protection previously unattainable​. At the same time, it forces a reckoning with the vulnerabilities of our current systems. The journey to fully realize quantum-enhanced…

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