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Quantum Computing
31 posts
Quantum computing is an emerging field of computing that utilizes the principles of quantum mechanics to perform computations. Unlike classical computers, which use bits to represent information as either 0 or 1, quantum computers use quantum bits, or qubits, which can exist in multiple states simultaneously.
Quantum Simulation: Modeling Molecules, Materials, and Physical Systems with Qubits
If you ask quantum computing researchers which application they’re most confident will eventually deliver genuine practical value —…
Quantum Supremacy and Quantum Advantage: Milestones, Controversies, and the Road Ahead
Few phrases in computing have been as consistently overused, misunderstood, and — in fairness to the skeptics —…
Quantum vs Classical Computing: A Layered Comparison from Physics to Abstraction
I’ve spent a lot of time explaining quantum computing to people who already understand classical computers really well…
Quantum Mechanics: From Subatomic Strangeness to Quantum Technologies
I still remember the first time a professor told me that an electron doesn’t really have a position…
Quantum Secure Multiparty Computation Algorithm: Working and Applications
I am covering Quantum Secure Multiparty Computation (QSMPC) in this document, which extends the classical idea of secure…
Quantum Key Distribution Algorithm: Working, Explanation, and Cryptography
I am writing about Quantum Key Distribution (QKD) in this document, focusing on the BB84 protocol since it…
Quantum Oblivious Transfer Algorithm: Working, Explanation, and Security
When I first came across Oblivious Transfer, I found the name a little strange, because the whole point…
Quantum Bit Commitment Algorithm: Working, Explanation, and Cryptographic Protocols
I like to describe bit commitment using the analogy of a sealed envelope. I write a bit down,…
Quantum Coin Flipping Algorithm: Working, Explanation, and Fair Play Protocols
I often explain quantum coin flipping to people using a simple scenario: two people who do not trust…
McEliece Algorithm: Working, Explanation, and Post-Quantum Cryptography
I consider the McEliece cryptosystem to be the oldest surviving code-based public-key encryption scheme, and one of the…