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PODCAST

The Post-Quantum World

Follow The Post-Quantum World, where Protiviti and our guests explore quantum computing and its business impacts, benefits and threats. Quantum computing capabilities are exploding, causing disruption and opportunities, but many technology and business leaders still don’t understand the impact quantum will have on their business. Protiviti is helping organizations get post-quantum ready. In our bi-weekly podcast series, The Post-Quantum World, Protiviti Associate Director and host Konstantinos

technology

All Episodes

37:44

Qiskit and Quantum Utility – with Sanket Panda of IBM...

The Post-Quantum World ·

2026/09/30

Quantum computing is rapidly crossing the chasm from low-level physics experiments to practical, enterprise-grade problem-solving. In this episode, host Konstantinos Karagiannis sits down with IBM Quantum Product Lead Sanket Panda and Quantum Elements CEO Izhar Medalsy to uncover how the modern Qiskit ecosystem is stripping away hardware complexity. From Qiskit’s core Rust rewrite slashing transpilation times from an hour to mere milliseconds, to the introduction of modular Qiskit Functions, the

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32:30

Diamonds in the Rack: Room-Temp Quantum Computing –...

The Post-Quantum World ·

2026/09/16

Quantum computing has long been trapped inside massive dilution refrigerators, but SAXON Q is looking to change that. CEO Marius Grundmann joins host Konstantinos Karagiannis breaks down how his company uses artificial diamond chips and atomic-scale NV centers to build fully functional, room-temperature quantum computers that mount directly into standard 19-inch server racks. By leveraging the natural rigidity of diamond crystals to protect delicate nuclear and electron spin qubits from ambient

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37:44

Q-Day Before 2030 Remains Firm – with Cameron Chehreh...

The Post-Quantum World ·

2026/09/02

IonQ’s VP of Engineering and CTO, Cameron Chehreh, joins host Konstantinos Karagiannis to break down why the race to scalable quantum computing is accelerating far faster than expected. Bringing a pragmatic, classical compute mindset to quantum systems, Chehreh explains how IonQ is transitioning from traditional optical tables to chip-scale trapped-ion QPUs, bolstered by their SkyWater foundry acquisition to dramatically speed up silicon iteration. He also provides an exclusive update on the

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36:11

Preventing Some PQC Rip-and-Replace – with José Rosas...

The Post-Quantum World ·

2026/08/19

The quantum computing threat isn't a far-off problem anymore, with deadlines rapidly shifting closer to 2029. Organizations are scrambling to secure $30 trillion in legacy IT infrastructure. Dr. José Rosas, CEO of EigenQ, joins host Konstantinos Karagiannis to explain how his company can bypass the need for costly "rip-and-replace" server upgrades by delivering plug-and-play PCIe accelerator boards. By combining quantum entropy (random number generation) with post-quantum cryptography (PQC)

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31:25

Quantum Navigation Takes to the Skies – with Sanket...

The Post-Quantum World ·

2026/08/05

While quantum computing garners most of the headlines, quantum sensing is silently revolutionizing how we navigate a world where GPS can no longer be taken for granted. Host Konstantinos Karagiannis sits down with Sanket Deshpande (CEO) and Ashwarya Das (COO) of Dirac Labs to explore how executive order mandates and over 1,500 daily GPS jamming attacks are forcing a massive shift toward resilient, spoof-proof navigation. The team delves into the physics behind solid-state diamond sensors, which are

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38:34

Building the “Worst” Quantum Devices at DEF CON –...

The Post-Quantum World ·

2026/07/22

In this episode, host Konstantinos Karagiannis reunites with longtime friends and co-founders of the Quantum Village, Mark Carney and Victoria Kumran, to preview their upcoming plans for DEF CON 34. Celebrating their fifth anniversary, the duo reflects on how the Quantum Village has evolved from a "hodgepodge" of quantum skepticism into an internationally recognized hub for open-source, hands-on hardware. Backed by their first-ever philanthropic grant from Mozilla, Victoria and Mark highlight how

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33:11

Fraud Detection via Photonics – with Pouya Dianat of...

The Post-Quantum World ·

2026/07/08

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 and thin-film lithium niobate, explaining why the company has focused on application-specific, analog

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40:30

1000x Faster and Cheaper – with Richard Givhan of Haiqu

The Post-Quantum World ·

2026/06/24

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 disrupting this perspective by championing a wave of empirical optimism, proving that enterprise R&D

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36:54

The Race to Save Bitcoin – with Chris Tam of BTQ

The Post-Quantum World ·

2026/06/10

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 computers utilizing Shor's algorithm are on an exponential trajectory to cracking the elliptic

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41:04

NVIDIA Architect Warns We Might Need to Rip and...

The Post-Quantum World ·

2026/05/27

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 challenges of integrating heavier PQC algorithms into resource-constrained chips like the Trusted Platform

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41:32

Slashing the Time to Quantum Advantage – with Toby...

The Post-Quantum World ·

2026/05/13

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 magnitude. Toby shares how his team has already knocked factors of one million off the gate counts for

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31:17

Quantum Vibe Coding – with Vincent van Wingerden of...

The Post-Quantum World ·

2026/04/29

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 requires tedious manual manipulation of gates and hardware-specific constraints, Classiq’s platform

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32:27

Computing on PQC-Encrypted Data – with Dr. Kurt...

The Post-Quantum World ·

2026/04/15

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, it offers robust post-quantum security properties right out of the box. Learn how this technology

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30:46

PQC Job Market Soaring and the Year of Quantum...

The Post-Quantum World ·

2026/04/01

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 data longevity from a growing tsunami of threats. Drawing from her military background, she emphasizes

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32:13

The Fall and Rise of a Quantum Company Boosting...

The Post-Quantum World ·

2026/03/18

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 how Zapata’s seven years of intellectual property proved too valuable to give up.The conversation goes

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32:06

Q-Day 10x Closer Than We Thought—Pinnacle Paper...

The Post-Quantum World ·

2026/03/04

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 Paul Webster from Iceberg Quantum as they explain the techniques in the paper and its serious potential

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28:44

Quantum Money and Self-Destructing Signatures — with NTT

The Post-Quantum World ·

2026/02/18

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 research fellow at NTT Research, about how one-shot signatures might change digital finance and secure

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40:26

A VC Shares His 5-Layer Quantum Investing Strategy —...

The Post-Quantum World ·

2026/02/04

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 into why Intel Capital favors Series A and B rounds, how his background in physics helps him spot

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32:35

AI-Powered Digital Twins for Quantum Hardware — with...

The Post-Quantum World ·

2026/01/21

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 evolution of a system, including specific noise models such as crosstalk and decoherence, without the high

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47:15

2026 Predictions and the Road to 40,000 Logical...

The Post-Quantum World ·

2026/01/07

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 architecture — which uses telecom-grade photons to entangle qubits across networks — allows them to bypass the

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