Quantum Computing
PostQuantum.com – Industry news and blog on Quantum Computing, Quantum Security, PQC, Post-Quantum, Quantum Tech
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From NISQ to FTQC to FASQ
The dream of quantum computing is inching closer to reality, but between our current noisy prototypes and tomorrow’s transformative machines lies a daunting gulf. In the language of the field, we are transitioning from the NISQ era into the realm of FTQC, with an eye on the ultimate prize dubbed…
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China’s Quantum Computing and Quantum Technology Initiatives
In little over a decade, China transformed from a minor player into a quantum technology powerhouse. The talent has matured, and a new generation of Chinese quantum scientists is coming into its own – many trained at top universities domestically and abroad, now supported by some of the best facilities…
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Quantum Technology Initiatives in Singapore and ASEAN
ASEAN’s journey in quantum technology is relatively recent but steadily gaining momentum. Singapore took the lead in the early 2000s – the National Research Foundation began funding quantum research as early as 2002, and by 2007 the government helped establish the Centre for Quantum Technologies (CQT) at the National University…
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Quantum Technologies and Quantum Computing in Russia
Russia’s engagement with quantum science dates back to the Soviet era, which produced a strong foundation of theoretical physics and early quantum experiments. This legacy endures in the modern era – Russian experts often note that the “Soviet school of quantum physics was one of the best in the world,”…
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Variational Quantum Eigensolver (VQE) Breakthroughs
The Variational Quantum Eigensolver (VQE), introduced in 2014, has rapidly become a flagship algorithm for simulating ground-state properties on today’s noisy quantum computers. Rather than running long quantum circuits, VQE uses short circuits and a classical optimizer in tandem: the quantum processor prepares a trial wavefunction with adjustable parameters, and…
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Quantum Contrarianism
Contrarianism in quantum tech, as in any tech, is best viewed as a tool, not a truth. It’s a tool for questioning and refining the narrative, for ensuring we don’t delude ourselves. But it is not the final truth of what the technology will or will not achieve – that…
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Quantum Technologies and Cybersecurity: Threats and Defenses
Quantum technologies introduce a new era for cybersecurity – one that is simultaneously perilous and full of potential. On the threat side, the advent of quantum computers threatens to upend the cryptographic protections we rely on daily, making it imperative that we transition to quantum-safe methods before quantum attackers emerge.…
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Quantum Computing Benchmarks: RCS, QV, AQ, and More
As quantum computing hardware rapidly improves, simple metrics like qubit count are no longer sufficient to gauge a system’s true capability. Unlike classical computers where transistor counts roughly correlate with performance, quantum bits (qubits) can be error-prone and short-lived, so a few high-fidelity qubits can be more valuable than many…
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Adiabatic Quantum (AQC) and Cyber (2024 Update)
Adiabatic Quantum Computing (AQC) is an alternative paradigm that uses an analog process based on the quantum adiabatic theorem. Instead of discrete gate operations, AQC involves slowly evolving a quantum system’s Hamiltonian such that it remains in its lowest-energy (ground) state, effectively “computing” the solution as the system’s final state.…
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Quantum Technology Initiatives in Europe and EU
Europe’s quantum technology landscape has evolved from disparate academic projects into a coordinated multi-billion euro endeavor encompassing the EU and its member states. The historical commitment to quantum science is now manifesting in tangible outputs: prototype quantum computers in laboratories and supercomputing centers, quantum-secure communication testbeds linking cities, and quantum…
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Quantum Hacking: Cybersecurity of Quantum Systems
While these machines are not yet widespread, it is never too early to consider their cybersecurity. As quantum computing moves into cloud platforms and multi-user environments, attackers will undoubtedly seek ways to exploit them.
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The Quantum Approximate Optimization Algorithm (QAOA) – A Beginner’s Guide
At its core, QAOA is a hybrid quantum-classical algorithm that constructs a special kind of quantum circuit (or “ansatz”) to represent a candidate solution, and then uses a classical optimizer to tweak that circuit for better results. It was introduced in 2014 by Edward Farhi and collaborators as an algorithm…
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Career Opportunities in Quantum Technologies (No PhD Required)
The landscape of careers in quantum technologies is incredibly rich and expanding by the day. What was once the domain of a few theoretical physicists is now a broad industry ecosystem hungry for talent from all backgrounds: software, hardware, analytics, management, and more. The driving premise is that you do…
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Australia Quantum Computing & Quantum Technology
Australia’s quantum technology journey has progressed from pioneering academic experiments to a coordinated national endeavor spanning government, academia, and industry. The country has built a solid foundation with landmark research in quantum computing (particularly in silicon qubit hardware and error correction) and has extended its expertise to quantum communications and…
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Quantum Technology Use Cases in Aerospace & Automotive
Quantum computing is on the verge of reshaping the future of both aerospace and automotive sectors, even if the technology’s full maturation is still years away. In this article, we’ve seen that current developments – from corporate partnerships and research alliances to early quantum prototypes tackling real use cases –…
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