All Quantum Computing Posts
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Quantum Computing
Glossary of Quantum Computing Terms
Glossary of Quantum Computing, Quantum Networks, Quantum Mechanics, and Quantum Physics Terms for Cybersecurity Professionals.
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Post-Quantum
Adiabatic Quantum Computing (AQC) and Impact on Cyber
Adiabatic Quantum Computing (AQC), and its variant Quantum Annealing, are another model for quantum computation. It's a specialized subset of quantum computing focused on solving optimization problems by finding the minimum (or maximum) of a given function over a set of possible solutions. For problems that can be presented as optimization problems, such as 3-SAT problem, quantum database search problem, and yes, the factoring problem…
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Quantum Computing
Early History of Quantum Computing
Since the early 2000s, the field of quantum computing has seen significant advancements, both in technological development and in commercialization efforts. The experimental demonstration of Shor's algorithm in 2001 proved to be one of the key catalyzing events, spurring increased interest and investment from both the public and private sectors.
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Quantum Computing
The Controlled-NOT (CNOT) Gate in Quantum Computing
The CNOT gate is to quantum circuits what the XOR gate is to classical circuits: a basic building block for complex operations. By learning how the CNOT gate works and why it matters, cybersecurity experts can better appreciate how quantum computers process information, how they might break cryptography, and how they enable new secure protocols. This article provides an accessible yet rigorous overview of the…
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Quantum Computing
Random Circuit Sampling (RCS) Benchmark
At its core, Random Circuit Sampling (RCS) is a way to test how well a quantum computer can generate the output of a complex quantum circuit. Compare the results to what an ideal quantum computer should produce. If the quantum computer’s output closely matches the theoretical expectations, it demonstrates that the system is performing quantum operations correctly.
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Quantum Computing
Schrödinger’s Wave Equation
Schrödinger’s equation is essentially the master instruction set for quantum systems – the quantum-world analogue of Newton’s famous F=ma in classical physics. In short, Schrödinger’s equation is to quantum mechanics what Newton’s second law is to classical mechanics: a fundamental law of motion describing how a physical system will change over time. It was formulated in 1925–26 by Erwin Schrödinger, who built on the idea…
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Quantum Computing
What’s the Deal with Quantum Computing: Simple Introduction
Quantum computing holds the potential to revolutionize fields where classical computers struggle, particularly in areas involving complex quantum systems, large-scale optimization, and cryptography. The power of quantum computing lies in its ability to leverage the principles of quantum mechanics—superposition and entanglement—to perform certain types of calculations much more efficiently than classical computers.
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Quantum Computing
Quantum Parallelism in Quantum Computing: Demystifying the “All-at-Once” Myth
Quantum parallelism is often described in almost mystical terms – exponential computations happening in parallel in the multiverse! – but as we’ve explored, it boils down to the concrete physics of superposition and interference. A quantum computer superposes many states and processes them together, leveraging the wave-like nature of quantum amplitudes to sift out the answer we want. It’s like having an insanely massive parallel…
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