# unitary matrices

Published articles for unitary matrices.

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## The Quantum Bit

DevFeed: [The Quantum Bit](<https://devfeed.tech/articles/the-quantum-bit-40373.md>)

Original publisher: [Read original article](<https://www.jeremykun.com/2014/12/15/the-quantum-bit/>)

Published: 2014-12-15T10:00:52Z

Content type: tutorial

Language: en

Sources: [Jeremy Kun](<https://devfeed.tech/sources/jeremy-kun.md>)

Topics: [Quantum Computing](<https://devfeed.tech/topics/quantum-computing.md>), [Computing](<https://devfeed.tech/topics/computing.md>), [circuit](<https://devfeed.tech/topics/circuit.md>)

Tags: [bits](<https://devfeed.tech/tags/bits.md>), [circuit](<https://devfeed.tech/tags/circuit.md>), [circuits](<https://devfeed.tech/tags/circuits.md>), [complex-numbers](<https://devfeed.tech/tags/complex-numbers.md>), [computing](<https://devfeed.tech/tags/computing.md>), [linear-algebra](<https://devfeed.tech/tags/linear-algebra.md>), [mathematics](<https://devfeed.tech/tags/mathematics.md>), [measurement](<https://devfeed.tech/tags/measurement.md>), [quantum](<https://devfeed.tech/tags/quantum.md>), [quantum-computing](<https://devfeed.tech/tags/quantum-computing.md>), [quantum-mechanics](<https://devfeed.tech/tags/quantum-mechanics.md>), [qubit](<https://devfeed.tech/tags/qubit.md>), [unitary-matrices](<https://devfeed.tech/tags/unitary-matrices.md>)

### AI overview

An introduction to quantum computing that extends classical circuit concepts to qubits. It defines a qubit as a unit vector in the complex plane of two dimensions and explains why extracting information from qubits differs from reading classical bits.

### Source excerpt

The best place to start our journey through quantum computing is to recall how classical computing works and try to extend it. Since our final quantum computing model will be a circuit model, we should informally discuss circuits first. A circuit has three parts: the "inputs," which are bits (either zero or one); the "gates," which represent the lowest-level computations we perform on bits; and the "wires," which connect the outputs of gates to the inputs of other gates.

## A Motivation for Quantum Computing

DevFeed: [A Motivation for Quantum Computing](<https://devfeed.tech/articles/a-motivation-for-quantum-computing-40372.md>)

Original publisher: [Read original article](<https://www.jeremykun.com/2014/12/08/a-motivation-for-quantum-computing/>)

Published: 2014-12-08T10:00:48Z

Content type: article

Language: en

Sources: [Jeremy Kun](<https://devfeed.tech/sources/jeremy-kun.md>)

Topics: [Quantum Computing](<https://devfeed.tech/topics/quantum-computing.md>), [circuit](<https://devfeed.tech/topics/circuit.md>), [Computing](<https://devfeed.tech/topics/computing.md>), [quantum mechanics](<https://devfeed.tech/topics/quantum-mechanics.md>)

Tags: [circuit](<https://devfeed.tech/tags/circuit.md>), [computing](<https://devfeed.tech/tags/computing.md>), [experiments](<https://devfeed.tech/tags/experiments.md>), [mathematics](<https://devfeed.tech/tags/mathematics.md>), [physics](<https://devfeed.tech/tags/physics.md>), [quantum](<https://devfeed.tech/tags/quantum.md>), [quantum-computing](<https://devfeed.tech/tags/quantum-computing.md>), [quantum-mechanics](<https://devfeed.tech/tags/quantum-mechanics.md>), [unitary-matrices](<https://devfeed.tech/tags/unitary-matrices.md>)

### AI overview

This article motivates the study of quantum computing by connecting quantum mechanics with the quantum circuit, a computing model that extends the classical Turing-machine perspective. It argues for teaching quantum mechanics from its conceptual core, including amplitudes and generalized probability.

### Source excerpt

Quantum mechanics is one of the leading scientific theories describing the rules that govern the universe. It's discovery and formulation was one of the most important revolutions in the history of mankind, contributing in no small part to the invention of the transistor and the laser. Here at Math ∩ Programming we don't put too much emphasis on physics or engineering, so it might seem curious to study quantum physics. But as the reader is likely aware, quantum mechanics forms the basis of one of the most interesting models of computing since the Turing machine: the quantum circuit.