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The Post-Quantum World

The Post-Quantum World

Protiviti 129 Episodes Oct 14, 2026

The Post-Quantum World is a bi-weekly podcast from Protiviti that explores quantum computing and its business impacts, benefits, and threats. Host Konstantinos Karagiannis and guests discuss hot topics in quantum computing, helping organizations understand and prepare for the post-quantum era. The podcast covers the disruption and opportunities created by quantum computing capabilities.

Episodes

Combining Atoms and Photons in a New Type of QPU – with Professor Barak Dayan of Quantum Source
Combining Atoms and Photons in a New Type of QPU – with Professor Barak Dayan of Quantum Source Oct 14, 2026 2013 Most quantum computing modalities face difficult hurdles with connectivity and scaling. Trapped atoms are great at interacting to run quantum calculations, but connecting millions of them together can be an engineering challenge. Photons are fantastic for fast communication and can link systems through standard fiber-optic cables, but because they pass right through one another without touching, g
Qiskit and Quantum Utility – with Sanket Panda of IBM Quantum and Izhar Medalsy of Quantum Elements
Qiskit and Quantum Utility – with Sanket Panda of IBM Quantum and Izhar Medalsy of Quantum Elements Sep 30, 2026 2264 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 transpi
Diamonds in the Rack: Room-Temp Quantum Computing – with Marius Grundmann of SAXON Q
Diamonds in the Rack: Room-Temp Quantum Computing – with Marius Grundmann of SAXON Q Sep 16, 2026 1950 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 nat
Q-Day Before 2030 Remains Firm – with Cameron Chehreh of IonQ
Q-Day Before 2030 Remains Firm – with Cameron Chehreh of IonQ Sep 2, 2026 2264 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 acq
Preventing Some PQC Rip-and-Replace – with José Rosas of EigenQ
Preventing Some PQC Rip-and-Replace – with José Rosas of EigenQ Aug 19, 2026 2171 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 board
Quantum Navigation Takes to the Skies – with Sanket Deshpande and Ashwarya Das of Dirac Labs
Quantum Navigation Takes to the Skies – with Sanket Deshpande and Ashwarya Das of Dirac Labs Aug 5, 2026 1885 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,
Building the “Worst” Quantum Devices at DEF CON – with Mark Carney and Victoria Kumran of Quantum Village
Building the “Worst” Quantum Devices at DEF CON – with Mark Carney and Victoria Kumran of Quantum Village Jul 22, 2026 2314 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 h
Fraud Detection via Photonics – with Pouya Dianat of Quantum Computing Inc.
Fraud Detection via Photonics – with Pouya Dianat of Quantum Computing Inc. Jul 8, 2026 1991 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
1000x Faster and Cheaper – with Richard Givhan of Haiqu
1000x Faster and Cheaper – with Richard Givhan of Haiqu Jun 24, 2026 2430 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
The Race to Save Bitcoin – with Chris Tam of BTQ
The Race to Save Bitcoin – with Chris Tam of BTQ Jun 10, 2026 2214 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:
NVIDIA Architect Warns We Might Need to Rip and Replace Hardware for PQC – with TCG
NVIDIA Architect Warns We Might Need to Rip and Replace Hardware for PQC – with TCG May 27, 2026 2464 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
Slashing the Time to Quantum Advantage – with Toby Cubitt of Phasecraft
Slashing the Time to Quantum Advantage – with Toby Cubitt of Phasecraft May 13, 2026 2492 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

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