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Quantum computing uses the nature of subatomic particles to perform calculations instead of using electrical signals as inclassical computing. Quantum computers usequbitsinstead ofbinarybits. By programming the initial conditions of the qubit, quantum computing can solve a problem when the superposition st...
Quantum computing is a new approach to calculation that uses principles of fundamental physics to solve extremely complex problems very quickly. A quantum qubit with its state represented as a bloch sphere. Flip a coin.Heads or tails, right? Sure, once we see how the coin lands. But while ...
If you’re new to quantum computing, I advise reading my “Quantum Computation Primer.” You’ll find the first part at tinyurl.com/quantumprimer1. Let’s begin by taking a look at superdense coding. Understanding Superdense Coding Superdense coding leverages the phenomenon of quantum entanglement...
Quantum theory provides an extremely accurate description of fundamental processes in physics. It thus seems likely that the theory is applicable beyond the, mostly microscopic, domain in which it has been tested experimentally. Here, we propose a Gedank
Quantum physics is the study of matter and energy at its most fundamental level. A central tenet of quantum physics is that energy comes in indivisible packets called quanta. Quanta behave very differently to macroscopic matter: particles can behave like waves, and waves behave as though they are...
What is quantum computing? A photo of a gold quantum computer.(Image credit: John D/Getty) Unlike classical computers that process data using binary bits, which can be in one of two states — 0 or 1 — quantum computers use particles such as electrons or photons. These quantum bits, or...
Quantum computing is completely different from today’s ubiquitous digital computers. It exploits the properties of quantum physics (the physics of subatomic particles) to perform calculations and simulations that would not be practical on a non-quantum machine. ...
This is also known as serial processing, which is successive in nature, meaning one operation must complete before another one follows. Lots of computing systems use parallel processing, an expansion of classical processing, which can perform simultaneous computing tasks. Classical computers also r...
However, due to the large increase of the dimension of the Hilbert space, the computational cost required by naïve application of Stinespring dilation to the quantum operation can be prohibitive for actual implementation on a quantum computing device. Perhaps for this reason, most algorithms ...