Deep Dive Series

Long-form research across quantum computing and quantum security

Multi-article series with capstone analyses, interactive tools, and companion databases.

Quantum Systems Integration

Open architecture, modular hardware, and building quantum computers from components


How to Build a Quantum Computer

How to Build a Quantum Computer

Integration guides for assembling quantum computers from modular components. Every major modality covered, from empty lab to first qubit signal, with vendor landscapes and procurement guidance.


What It Takes to Build a Quantum Computer

What It Takes to Build a QC

From qubit fabrication through cryogenics, control electronics, and error correction. A component-level breakdown of the supply chain and engineering challenges at each layer.


Quantum Systems Integration & QOA

Quantum Systems Integration & QOA

The Quantum Open Architecture model and multi-vendor system design. How independent integrators assemble best-of-breed components into working quantum computers.


Quantum Computing Modalities

Quantum Computing Modalities

Superconducting, trapped ion, neutral atom, photonic, silicon spin, and beyond. Every major hardware approach compared on performance, scalability, and commercial readiness.

Quantum Security, PQC Migration & Q-Day

Threat assessment, standards, mandates, migration frameworks, and deadlines


CRQC Quantum Capability Framework

CRQC Capability Framework

The nine engineering capabilities required to build a cryptographically relevant quantum computer. The structured, evidence-based method behind my Q-Day estimates.


Predicting Q-Day

Predicting Q-Day

Frameworks, forecasts, and the data behind competing timelines. Includes the interactive CRQC Readiness Benchmark tool for exploring estimates with your own assumptions.


Getting Started With Quantum Security & PQC Migration

Getting Started With Quantum Security

A practitioner’s roadmap from first awareness to active PQC migration. Covers threat assessment, NIST standards, the PQC Migration Framework, and how to build a business case.


Quantum Security Reference

Quantum Security Reference

Essential concepts for security leaders encountering quantum threats for the first time. Algorithms, attack models, and terminology explained without the hype.


PQC Governance: Program Leadership

PQC Governance & Program Leadership

Who leads PQC migration, how boards govern it, how to fund and execute it. A seven-part Deep Dive for CISOs, boards, and transformation leaders.


Global PQC Migration Timelines

Global PQC Migration Timelines

PQC deadlines are now set across 15+ countries. Maps every mandate, tracks where national requirements diverge, and identifies the compliance gaps that catch multinationals off guard.


CNSA 2.0: NSA's Post-Quantum Requirements

CNSA 2.0 Deep Dive

NSA’s post-quantum cryptography requirements decoded. Required algorithms, enforcement timelines, defense contractor compliance, and what CNSA 2.0 means beyond the NSS.


Quantum Threat to Cryptocurrencies

Quantum Threat to Cryptocurrencies

Ten-article series covering quantum resource estimates for breaking Bitcoin and Ethereum, protocol-level fixes, governance bottlenecks, and realistic migration roadmaps.

More Deep Dives


Quantum Sovereignty

Quantum Sovereignty

Strategic independence in the quantum era. Supply chain dependencies, export controls, and why national quantum strategies are reshaping technology geopolitics.


The Quantum Utility Map

The Quantum Utility Map

What will fault-tolerant quantum computers actually do? Application areas mapped by qubit requirements, timeline to viability, and projected economic impact.


China's Quantum Ambition

China’s Quantum Ambition

Could Beijing win the quantum race? China’s national programs, research output, industrial ecosystem, and the strategic implications for the West.


Quantum Computing Companies & Roadmaps

Quantum Computing Companies

60+ quantum hardware companies profiled and compared across modalities, funding, technical milestones, and commercial readiness. Updated quarterly.


Quantum Snake Oil Dictionary

Quantum Snake Oil Dictionary

A field guide to quantum hype, scams, and misused terminology. Spot exaggerated claims, decode marketing language, and separate real progress from noise.

Articles & Analysis

Quantum Computing, Quantum Security, PQC & Quantum Sovereignty

Quantum Technology Use Cases in Energy & Utilities

Quantum technologies matter for energy because many challenges in this sector involve combinatorial optimization and molecular simulation at scales classical computers cannot handle. For example, routing power through a grid with thousands of control decisions or modeling the chemistry inside ...

Quantum Computing Modalities: Superconducting Qubits

Superconducting qubits dominate quantum hardware today. This guide covers how they work, who builds them, what "good" looks like in 2026, and why the path they're on matters for the security of everything you encrypt ...

Quantum Use Cases in Pharma & Biotech

Quantum computing is poised to become a catalytic force in the global pharmaceuticals and biotechnology industries. Its ability to tackle problems of staggering complexity – whether simulating the quantum behavior of drug molecules, analyzing massive genomic datasets for personalized medicine, ...

Quantum Baloney Detection Toolkit

Quantum physics is famously weird and fascinating. Its principles (like superposition and entanglement) defy everyday intuition, which gives quantum technology an almost magical aura. Unfortunately, that same mystique attracts a lot of baloney. From overhyped press releases to outright scams ...

Quantum Computing Modalities: Holonomic (Geometric Phase) QC

Holonomic quantum computing (also known as geometric quantum computing) is a paradigm that uses geometric phase effects to perform quantum logic operations. In a holonomic gate, the quantum state is manipulated by adiabatically (or sometimes non-adiabatically) moving the system’s parameters ...

AI Oasis: AI’s Role in Saudi Vision 2030

It seems everyone is talking about artificial intelligence (AI). Everyone. From senior executives to school kids, the hype - or dread - around this technology seems to be growing by the day. Much of this excitement, of course, has to ...

Quantum Computing Modalities: Photonic QC

Photonic quantum computers encode information in particles of light, fabricated on the same semiconductor lines that produce classical chips. Here's the technology, the vendors, and why photonic architectures take a fundamentally different path to fault tolerance ...

A Deep Dive Into the ‘Rags to Riches’ Manual for Withdrawing Illicit-Origin Crypto

Annualized data from blockchain forensics provider Chainalysis indicates that crypto-enabled crime has dropped precipitously through the first half of 2023, but cybercriminals are also continuously evolving new cash-out methods to cover their tracks. Chainalysis’s mid-year update found that crypto inflows ...

Quantum Computing Modalities: Trapped-Ion QC

Trapped ions hold the record for qubit fidelity and the most efficient physical-to-logical qubit ratio demonstrated on real hardware. Here's how the technology works, who's building it, and why it matters for the path to a CRQC ...

Quantum Computing Modalities: Adiabatic Topological QC (ATQC)

Adiabatic Topological Quantum Computing (ATQC) is a hybrid paradigm that combines adiabatic quantum computing with topological quantum computing. In essence, ATQC uses slow, continuous changes in a quantum system’s Hamiltonian (an adiabatic evolution) to perform computations, while encoding information in ...

Quantum Computing Modalities: Neuromorphic QC (NQC)

Neuromorphic quantum computing (NQC) is a cutting-edge paradigm that merges two revolutionary approaches to computing: neuromorphic computing and quantum computing. Neuromorphic computing is inspired by the architecture of the human brain – it uses networks of artificial neurons and synapses ...

Quantum Computing Modalities: Topological Quantum Computing

Topological quantum computing promises hardware-level error protection that could eliminate most QEC overhead. But Majorana 1 hasn't demonstrated a topological qubit, the physics community is skeptical, and Microsoft is hedging with neutral atoms. Here's where the approach actually stands ...

PostQuantum.com AI Explainer

An AI tool that answers questions using a curated corpus of information from PostQuantum.com, NIST, NSA, and ENISA and other reliable sources. Ask anything related to quantum computing or quantum security.