The Quantum Computing Podcast with Fexingo: Qubits, Quantum Hardware, and Future Computing

Fexingo

This is a podcast about the current state and near-term future of quantum computing. Lucas and Luna examine the science and business of quantum hardware, from superconducting qubits to trapped ions and topological systems. They discuss the engineering challenges of error correction, the race to quantum supremacy, and the realistic timelines for commercial quantum advantage. Each episode focuses on a specific company, research paper, or technology milestone — Google's Sycamore, IBM's Quantum System One, IonQ's trapped-ion processors, or China's quantum communication network. Lucas brings a journalist's rigor to the technical details, while Luna pushes for clarity on what these advances mean for cryptography, drug discovery, optimization, and finance. This show is for listeners who want to understand quantum computing without hype — the real bottlenecks, the credible roadmaps, and the startups that might actually deliver. How close are we to a fault-tolerant quantum computer? Which industries will be transformed first? And which approaches are likely dead ends? #QuantumComputing #Qubits #QuantumHardware #QuantumSupremacy #ErrorCorrection #SuperconductingQubits #TrappedIons #TopologicalQubits #GoogleSycamore #IBMQuantum #IonQ #QuantumCryptography #DrugDiscovery #Optimization #Technology #Business #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo

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S5 · E222
Today · 12 min
How Quantum Annealing Solves Logistics
While most of the industry chases fault-tolerant universal quantum computers, a different approach called quantum annealing is already solving real-world optimization problems. We explore how D-Wave and others are using specialized hardware to tackle...
- Transcript
S5 · E221
Yesterday · 10 min
Quantum Software The Hidden Bottleneck
We talk about how the race to build quantum hardware is overshadowing a more immediate problem: software that actually works. With companies like IBM and Google pushing qubit counts, the gap between theoretical algorithms and physical reality is...
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S5 · E220
Wednesday · 16 min
The Race To Build Fault Tolerant Quantum Chips
We are looking at the physical engineering behind logical qubits, specifically how companies like Google and Quantinuum are stacking error-corrected modules to move beyond noisy intermediate-scale quantum hardware. On October twenty-first twenty twenty...
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S5 · E219
Tuesday · 9 min
How Quantum Algorithms Are Rewiring Software
We explore the hidden software layer of quantum computing with Dr. Elena Rostova, lead architect at Q-Core Systems. While hardware gets the headlines, it is the algorithms that determine if a quantum machine can actually solve real business problems like...
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S5 · E218
Monday · 10 min
Quantum Computing's Scaling Wall And The Modular Fix
As we approach late October 2026, the quantum computing industry faces a physical ceiling that most public investors miss. We are looking at why adding more qubits to a single dilution refrigerator is hitting diminishing returns due to heat and cabling...
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S5 · E217
Sunday · 12 min
Quantum Sensors Are Rewiring Industrial Measurement
We are looking at how quantum sensors, specifically atomic gravimeters and magnetometers, are moving from university labs into active industrial use. While quantum computers get all the headlines for factoring numbers, these smaller devices are already...
- Transcript
S5 · E216
Saturday · 13 min
The Hidden Physics Of Quantum Noise
We talk to quantum physicists about why decoherence is the ultimate boss battle for building useful computers. We look at how IBM and Google are fighting thermal noise with new error mitigation techniques. This episode breaks down the difference between...
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S5 · E215
October 13 · 7 min
The Quantum Chip Supply Chain Bottleneck
While headlines chase qubit counts, the real crisis in quantum hardware is physical: the ultra-pure copper interconnects required to route signals inside dilution refrigerators. Lucas and Luna break down why the same supply chain constraints hitting...
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S5 · E214
October 12 · 13 min
How Quantum Dots Are Rewiring Solar Energy
We dive into the specific engineering challenge of quantum dot solar cells and why efficiency gains are stalling at the interface level. Lucas breaks down the latest research on surface passivation, while Luna questions whether the manufacturing cost can...
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S5 · E213
October 12 · 12 min
Quantum Supremacy Is A Myth The Real Battle Is Error Correction
We dismantle the 'quantum supremacy' headline to reveal why error correction, not raw qubit counts, is the true bottleneck. Lucas and Luna explore how IBM’s 1,000-qubit Condor chip and Google’s Sycamore processor expose the gap between theoretical power...
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S5 · E212
October 11 · 8 min
Quantum Computing's Measurement Problem Explained
We talk about the hardest part of building a quantum computer, which is not keeping qubits cold or error-free, but actually reading their state without destroying it. This is the measurement problem, and it creates a bottleneck that no amount of cooling...
- Transcript
S5 · E211
October 10 · 11 min
How Quantum Algorithms Are Rewiring Software
We dig into the unexpected bottleneck in quantum computing: it is not hardware but software. Lucas and Luna explore why writing code for qubits feels nothing like traditional programming, how error correction eats up ninety percent of physical qubits...
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S5 · E210
October 8 · 13 min
Quantum Hardware Scaling The Physical Limits
We examine the physical constraints of scaling quantum processors, focusing on wiring density and thermal management. Lucas and Luna break down why adding more qubits doesn't linearly improve performance, citing specific bottlenecks in control...
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S5 · E209
October 7 · 11 min
How Quantum Key Distribution Is Securing The Grid
Quantum computing’s most immediate commercial reality isn’t solving protein folding — it’s securing the data that keeps modern infrastructure alive. In this episode, Lucas and Luna break down Quantum Key Distribution, or QKD, the technology already...
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S5 · E208
October 7 · 10 min
How Quantum Dots Are Rewiring Solar Energy
Lucas and Luna dive into the specific engineering breakthrough of quantum dots in photovoltaics, exploring how perovskite materials are moving from lab curiosity to commercial reality. They examine the efficiency gains that could redefine renewable...
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S5 · E207
October 5 · 10 min
Quantum Computing's Noise Problem Explained
We drill into the single biggest hurdle in quantum hardware today: decoherence. Lucas and Luna unpack why qubits are so fragile, how environmental noise destroys calculations, and what engineers are doing to isolate them. We look at the specific...
- Transcript
S5 · E206
October 5 · 12 min
The Quantum Internet's First Real Test
We look at the practical hurdles of building a quantum internet, focusing on the specific challenge of quantum repeaters and the recent breakthroughs in memory nodes. Lucas and Luna discuss how entanglement swapping works in real-world conditions, why...
- Transcript
S5 · E205
October 4 · 11 min
Quantum Error Correction The Real Bottleneck
We look at why building a useful quantum computer is less about adding qubits and more about fixing their mistakes. We explore the surface code, the overhead of physical versus logical qubits, and what that means for timelines in late twenty twenty six.
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S5 · E204
October 2 · 9 min
Why Quantum Batteries Are The Next Tech Frontier
Quantum computing dominates headlines, but the real bottleneck might be energy. In this episode, Lucas and Luna explore quantum batteries—theoretical devices that use quantum entanglement to store and release power faster than classical physics allows...
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S5 · E203
October 1 · 10 min
Quantum Error Correction The Hidden Cost
We drill into the physical reality of quantum error correction, focusing on the IBM Eagle processor and its one thousand qubits. Lucas explains why logical qubits require thousands of physical ones to maintain coherence. Luna challenges the timeline for...
- Transcript

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