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For example, a coherent (classical) light input produces a coherent light output; a superposition of quantum states input yields a quantum light state output. [3] Due to this reason, people usually use single photon source case to analyze the effect of linear optical elements and operators.
Quantum processors are difficult to compare due to the different architectures and approaches. Due to this, published physical qubit numbers do not reflect the performance levels of the processor. This is instead achieved through the number of logical qubits or benchmarking metrics such as quantum volume , randomized benchmarking or circuit ...
Since separating optical modes is a need for quantum computing, this technology may be helpful to miniaturize quantum computers (see linear optical quantum computing). Another example of a photonic integrated chip in wide use today in fiber-optic communication systems is the externally modulated laser (EML) which combines a distributed feed ...
Q-circuit Archived 2019-03-23 at the Wayback Machine is a macro package for drawing quantum circuit diagrams in LaTeX. Quantum Circuit Simulator (Davy Wybiral) (qcsimulator.github.io on GitHub) a browser-based quantum circuit diagram editor and simulator. Quantum Computing Playground (Quantum-Computing-Playground on GitHub) a browser-based ...
In quantum computing, a quantum algorithm is an algorithm that runs on a realistic model of quantum computation, the most commonly used model being the quantum circuit model of computation. [ 1 ] [ 2 ] A classical (or non-quantum) algorithm is a finite sequence of instructions, or a step-by-step procedure for solving a problem, where each step ...
Photonics is closely related to quantum electronics, where quantum electronics deals with the theoretical part of it while photonics deal with its engineering applications. [1] Though covering all light's technical applications over the whole spectrum, most photonic applications are in the range of visible and near-infrared light.
This is a list of quantum computing terminology. Qubit. [1] [2] Quantum circuit. [3] [4] Quantum logic gate. [5] [6] [7] Topological quantum computer. [8] [9 ...
For combinatorial optimization, the quantum approximate optimization algorithm (QAOA) [6] briefly had a better approximation ratio than any known polynomial time classical algorithm (for a certain problem), [7] until a more effective classical algorithm was proposed. [8] The relative speed-up of the quantum algorithm is an open research question.