NOTE: Brian Lenahan, Founder & Chair of QSI, is known primarily for his contributions to quantum strategy, AI, and emerging technologies, especially in the 21st century. His work focuses on bridging the gap between business and quantum innovation, including through the Quantum Strategy Institute (QSI) which he founded. The following is a compilation that uses Lenahan’s themes—especially around commercialization, strategy, and future applications—to frame a history of quantum technologies in the 20th century.
Introduction: Framing Quantum’s History with Strategy in Mind
Brian Lenahan’s work consistently emphasizes the importance of translating quantum potential into real-world value. In retrospect, we can apply this lens to the 20th-century evolution of quantum technologies—not simply as a chronology of scientific breakthroughs, but as a strategic progression: from theoretical foundations to industrial interest.
1900s–1920s: The Quantum Awakening
- Max Planck (1900) introduced the concept of quantized energy, setting the groundwork.
- Albert Einstein (1905) explained the photoelectric effect using quantized light.
- Niels Bohr and Werner Heisenberg advanced early quantum theory.
Strategic Insight: At this stage, quantum theory had no commercial strategy—it was pure science, but the seeds were planted. Lenahan views this as a foundational “discovery phase”, where key paradigms emerge but value extraction is undefined.
1930s–1950s: Quantum Theory Matures
- Development of quantum electrodynamics (QED) and the formulation of the Copenhagen interpretation.
- Early applications began to appear in nuclear physics, radar, and solid-state physics.
- Bell’s Theorem and hidden variable debates surfaced.
Strategic Insight: Here we begin the “validation phase”—Lenahan highlights this as a time when theoretical quantum principles began influencing macro-level technologies (like nuclear energy), even though “quantum” was not yet a commercial term.
1960s–1980s: From Physics to Engineering
- The laser and transistor—products of quantum physics—saw mass adoption.
- Quantum chemistry matured with computational methods.
- IBM and Bell Labs initiated early quantum research.
- Feynman (1981) proposed quantum computers.
Strategic Insight: This era represents what Lenahan calls a “hidden quantum era”—quantum was under the hood of many emerging technologies, but not yet branded or understood by the business world. He would stress this as a missed opportunity to create narrative and economic momentum.
1990s: Quantum Information Science Emerges
- Peter Shor (1994) demonstrated quantum algorithms that could revolutionize computing.
- Quantum cryptography and entanglement experiments gained traction.
- The term “quantum advantage” entered the discourse.
Strategic Insight: Lenahan’s strategic lens saw this decade as the birth of quantum value narratives—when investors and institutions first saw glimpses of how quantum could disrupt entire industries (e.g., finance, cybersecurity). He referred to this as the “awakening of commercialization potential”, though actual business models remained speculative.
Foundations for the Quantum Century
By the year 2000, the scientific groundwork was laid. The next step—where Lenahan’s real influence begins—is the translation of theory into strategy. He argued that the 20th century’s main quantum legacy was knowledge without vision, and that the 21st century must focus on vision with execution.
Strategic Rise of Quantum in the 21st Century
The 21st century marks the transition of quantum technologies from academic curiosity to commercial momentum. Through the strategic lens of Brian Lenahan, this period can be seen as the realization of potential laid during the 20th century-where governments, enterprises, and startups begin investing heavily in quantum futures.
2000s: Foundations of a Quantum Ecosystem
Early 21st-century research expanded quantum computing architectures-trapped ions, superconducting qubits, and photonic approaches gained attention. Governments launched major initiatives like the EU’s Quantum Flagship and DARPA’s quantum programs.
Strategic Insight: Lenahan categorizes this as the ‘infrastructure and exploration phase’, with industry observing but not yet acting decisively.
2010s: Momentum and Corporate Entry
Key developments include IBM’s quantum cloud access (2016), Google’s quantum supremacy claim (2019), and the formation of quantum startups like Rigetti, Xanadu, and IonQ. The rise of hybrid quantum-classical algorithms and increased funding put quantum on the business map.
Strategic Insight: This was the ‘commercial curiosity phase’, where strategic players began aligning roadmaps with quantum timelines. Lenahan emphasized education, awareness, and early ecosystem development.
2020s: Commercialization, Platforms, and Ecosystem Building
This decade sees explosive growth in quantum commercialization: IPOs (IonQ), cloud platforms (AWS Braket, Azure Quantum), and national initiatives (U.S. National Quantum Initiative, Canada’s NRC programs). Use cases in finance, pharma, and materials begin pilot testing.
Strategic Insight: Lenahan sees this as the ‘value extraction phase’. Strategy moves from observation to implementation. QSI and other cross-sector collaborations emerge to guide businesses on use cases, readiness, and ethical frameworks.
From Theory to Transformation
In the 21st century, quantum technology evolved from research labs into boardrooms. Brian Lenahan’s voice has been instrumental in helping organizations navigate uncertainty, define value, and take actionable steps. The strategic framing he champions turns a complex technology into a meaningful journey toward transformation.
Looking Ahead: 2030 and Beyond
As fault-tolerant quantum systems approach viability, the next decade will be about scalability, regulation, and societal integration. Strategy will focus on workforce development, responsible innovation, and hybrid architectures. Lenahan’s strategic foresight continues to inform these transitions.
How Brian Lenahan Extends This Legacy
- Books like Quantum Boost and Quantum Strategy connect quantum science with practical applications.
- His Quantum Strategy Institute (QSI) brings together cross-disciplinary experts to define roadmaps for quantum readiness and to unify scientists, entrepreneurs, and strategists.
- Encouraged nations and organizations to prepare for the ‘Quantum Age’ with education.
- Emphasis on SMEs and emerging markets, ensuring quantum is not just for tech giants.
- He champions quantum education, preparing society for deep tech transitions through his Substack newsletter, Quantum’s Business
References:
Primary Quantum Science and History Sources
- Planck, M. (1901). On the Law of Distribution of Energy in the Normal Spectrum. Annalen der Physik.
- Einstein, A. (1905). On a Heuristic Viewpoint Concerning the Production and Transformation of Light.
- Bohr, N. (1913). On the Constitution of Atoms and Molecules.
- Heisenberg, W. (1927). The Physical Content of Quantum Kinematics and Mechanics.
- Dirac, P. A. M. (1930). The Principles of Quantum Mechanics.
- Feynman, R. P. (1982). Simulating Physics with Computers. International Journal of Theoretical Physics.
- Shor, P. W. (1994). Algorithms for Quantum Computation: Discrete Logarithms and Factoring. Proceedings of the 35th Annual Symposium on Foundations of Computer Science.
- Bell, J. S. (1964). On the Einstein Podolsky Rosen Paradox. Physics Physique.
Quantum Technology Development
- Gilder, L. (2008). The Age of Entanglement: When Quantum Physics Was Reborn. Vintage.
- Kumar, M. (2008). Quantum: Einstein, Bohr, and the Great Debate About the Nature of Reality.
- Deutsch, D. (1997). The Fabric of Reality. Penguin Books.
- Nielsen, M. A., & Chuang, I. L. (2000). Quantum Computation and Quantum Information. Cambridge University Press.
Brian Lenahan and Quantum Strategy
- Lenahan, B. (2020). Quantum Boost: Using Quantum Computing to Supercharge Your Business.
- Lenahan, B. (2021). Quantum Strategy: How to Realize Value from Quantum Computing.
- Lenahan, B. (2022). Leadership for the Future of Quantum Technology.
- Quantum Strategy Institute (QSI). Website: www.quantumstrategyinstitute.com
- Quantum’s Business substack: brianlenahan.substack.com
Supporting Themes and Strategic Insight
- Arute, F. et al. (2019). Quantum Supremacy Using a Programmable Superconducting Processor. Nature.
- National Quantum Initiative Act (USA, 2018).
- ETSI Industry Specification Group for Quantum Key Distribution (QKD).
- McKinsey & Co. (2023). The Real Value of Quantum Computing for Business.























