The Post-Quantum World

Is quantum technology purely a science of the future, or can it solve major enterprise problems today? In this episode, Pouya Dianat, Chief Revenue Officer of Quantum Computing Inc. (QCi), joins host Konstantinos Karagiannis to discuss how his company is moving past the lab stage to deliver real business value right now. Dianat breaks down QCi’s unique hardware approach using nonlinear photonics a...

Is quantum computing trapped behind a hardware bottleneck? In this episode, host Konstantinos Karagiannis sits down with Richard Givhan, the CEO of Haiqu, who challenges this long-standing narrative. While the industry has historically focused on building perfect, fault-tolerant systems, Givhan argues that this theoretical cynicism has caused the software layer to be deeply undervalued. Haiqu is d...

Is the ultimate cryptocurrency ticking toward a sudden, quantum-powered collapse? In this episode, Chris Tam, President and Head of Innovation at BTQ, joins host Konstantinos Karagiannis to shatter the comforting illusions many Bitcoiners still hold about the quantum computing threat. While many assume that a Q-Day attack would only disrupt future mining, Tam exposes the true, terrifying reality:...

Quantum technical debt is the idea that some devices cannot be upgraded to PQC. In this episode, Thorsten Stremlau, a Systems Principal Architect at NVIDIA and Co-Chair of the Trusted Computing Group (TCG) Marketing Work Group, joins host Konstantinos Karagiannis to discuss the critical role of hardware roots of trust in protecting against the quantum computing threat. Stremlau outlines the challe...

What if the timelines for world-changing quantum computing aren’t dictated only by hardware manufacturers, but also by the sheer power of a better idea? In this episode, host Konstantinos Karagiannis sits down with Toby Cubitt, the co-founder and CTO of Phasecraft, to explore how clever mathematics and algorithmic breakthroughs are slashing the requirements for quantum advantage by orders of magni...

How do you go from a quantum computing research paper to a circuit you can run on a real machine? Can AI help bridge the gap between complex mathematical theory and functional quantum code? In this episode, Vincent van Wingerden, Director of Strategic Partnerships at Classiq, joins host Konstantinos Karagiannis to discuss the dawn of quantum vibe coding. While traditional quantum programming often...

What if you could crunch numbers on a dataset without ever actually seeing the sensitive information inside? Dr. Kurt Rohloff, co-founder and CTO of Duality Technologies, joins host Konstantinos Karagiannis to explain the wild capabilities of Fully Homomorphic Encryption (FHE), which allows for computation on data while it remains fully encrypted. Because FHE is built on lattice-based cryptography...

In this landmark five-year special episode, host Konstantinos Karagiannis welcomes Addie LaMarr, a YouTuber and former cryptographer with eight years of experience in the Air Force and a history of writing cybersecurity policy for the Department of Justice. LaMarr identifies 2026 as the “beginning of quantum seriousness,” a year where global regulations are forcing a transition to protect critical...

Zapata’s back! A tough stretch including a difficult SPAC deal, a brief move into AI, and a $20 million debt forced the company to shut down in 2024. But in this episode, Sumit Kapur, CEO of Zapata Quantum, talks with host Konstantinos Karagiannis about how the company made a remarkable comeback. They discuss the intense restructuring, the strong support from the quantum computing industry, and ho...

The groundbreaking Pinnacle Architecture paper has sent shockwaves through the  quantum computing  industry by demonstrating that RSA-2048 encryption could potentially be cracked with just 100,000 physical qubits. This is a massive order-of-magnitude reduction from previous estimates that once reached into the millions. Join host  Konstantinos Karagiannis  as he sits down with Felix Thomsen and Pa...

A one-shot signature is a new  quantum computing  tool that lets people verify information publicly using a quantum signing key that destroys itself after use. This “proof of destruction” makes sure the key can only be used once, which could lead to cryptographic solutions that classical math could not achieve. Host Konstantinos Karagiannis talks with Omri Shmueli, a cryptographer and postdoctoral...

Explore the high-stakes world of quantum venture capital. Host Konstantinos Karagiannis sits down with Kike Miralles, Investment Director at  Intel Capital . Moving beyond surface-level hype, Miralles introduces his “five-layer stack” philosophy — a strategic framework that evaluates everything from physical infrastructure and QPUs to middleware and end-user applications. He shares candid insights...

The “Constellation Platform” is revolutionizing the path to fault-tolerant quantum computing. Rather than relying on traditional state vector simulations that hit a wall at 50 qubits, this platform from Quantum Elements uses a breakthrough method, stochastic compression, to create realistic digital twins of quantum hardware at scale. This approach allows developers to simulate the complex time evo...

Let’s look to 2026 and recap a pivotal 2025 with Paul Terry, CEO of Photonic. Explore why the industry has officially moved past the era of noisy qubits into the race for fault-tolerant, "gold-standard" logical qubits. Paul joins host Konstantinos Karagiannis to break down Photonic’s selection for DARPA’s Quantum Benchmarking Initiative Stage B and explains how their unique distributed architectur...

Traffic congestion isn't just a daily annoyance; it’s a multi-billion dollar drain on the global economy. In this episode, we explore a concrete, real-world application of quantum computing that aims to solve this problem today. Tal David, Co-founder and CEO of Quantum Art, joins host Konstantinos Karagiannis to discuss the company’s major new partnership with Ayalon Highways in Israel. Tal breaks...

We cover post-quantum cryptography (PQC) regularly on this show, focusing on the new math-based ciphers that will secure the Internet as quantum computing becomes more powerful. But what about physics-based encryption or quantum key distribution (QKD)? Is that still a thing? We examine how exploiting the laws of quantum physics can securely exchange encryption keys over a fiber and explore the ben...

The word “foundry” might make you think of large machines pouring metal into molds, but Argonne National Labs has a Quantum Foundry that implants individual atoms, like silicon, into materials such as diamond. The resulting spin qubits are optically active and can use photons to communicate. We can expect spin qubits to help interconnect systems, which could help us achieve distributed quantum com...

How are recent quantum computing breakthroughs reshaping business, competition, and society itself? What global challenges might quantum and AI either help with or introduce? We’re trying something a little different and asking a futurist and bestselling author of The Quantum Economy to weigh in on how our increasing qubit counts might all play out in a few years. Join host Konstantinos Karagianni...

You’ve likely heard of Pareto’s Principle or the 80/20 rule. Is there a way to achieve most of the benefits of crypto-agility with minimal effort? Palo Alto Networks has undoubtedly made its mark with firewalls and security detection and response offerings. We learn how they can also provide a rapid head start to PQC migration, covering everything from cryptographic inventory to creating wrappers...

Can you put a quantum computer in a satellite, car, or even laptop? It’s possible with diamond-based quantum technologies that work at room temperature. Nitrogen-vacancy (NV) center qubits challenge the notion that quantum computing is confined to massive data centers. Such mass-deployable quantum computers and sensors can be used in medical diagnostics, satellite imaging, and anywhere local infer...

For the first time, Shor’s Algorithm is running on logical qubits! The team at Infleqtion used their Sqale neutral atom processor to accomplish the feat. While the setup only uses six logical qubits, and we’re still in the range of factoring 15 or 21, this is both a proof of concept and a proof of the need for post-quantum cryptography (PQC). We discuss the aggressive 2.5:1 physical-to-logical rat...

 Imagine a world where quantum computers seamlessly share entangled particles across data centers, solving problems beyond the reach of classical systems. This may be possible soon thanks to a groundbreaking quantum networking entanglement chip capable of generating 200 million entangled photon pairs per second at room temperature. Cisco is redefining networking again, doing everything from detect...

DigiCert is widely recognized for its expertise in PKI and as a TLS certificate authority. As you can imagine, they have a significant perspective on the quantum computing threat to encryption and the migration to post-quantum cryptography (PQC). We cover everything from the challenges of upgrading IoT devices to ML-DSA signature sizes, as well as the new DigiCert One platform the company offers t...

IonQ is poised to redefine the quantum computing landscape, projecting a staggering 80,000 logical qubits by 2030—potentially unlocking the power to crack encryption. NIST has us on a timeline to upgrade to post-quantum cryptography (PQC) by 2035, so this 5-year gap may spell doom for cybersecurity. Of course, these machines will also revolutionize industries from finance to drug discovery to AI....

DEF CON 33 approaches, bringing with it the fourth year of Quantum Village. Nothing like getting hands-on with quantum computing and sensing technology at the world’s leading hacking conference. To that end, this episode explores the open-source quantum sensing device and software that our guests Mark Carney and Victoria Kumaran are presenting in Vegas. And yes, for the third year in a row, host K...