# entanglement

Published articles for entanglement.

This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles.

## Multiple Qubits and the Quantum Circuit

DevFeed: [Multiple Qubits and the Quantum Circuit](<https://devfeed.tech/articles/multiple-qubits-and-the-quantum-circuit-40374.md>)

Original publisher: [Read original article](<https://www.jeremykun.com/2015/01/26/multiple-qubits-and-the-quantum-circuit/>)

Published: 2015-01-26T09:00:00Z

Content type: article

Language: en

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

Topics: [circuit](<https://devfeed.tech/topics/circuit.md>)

Tags: [2](<https://devfeed.tech/tags/2.md>), [bits](<https://devfeed.tech/tags/bits.md>), [circuits](<https://devfeed.tech/tags/circuits.md>), [entanglement](<https://devfeed.tech/tags/entanglement.md>), [linear-algebra](<https://devfeed.tech/tags/linear-algebra.md>), [multiple](<https://devfeed.tech/tags/multiple.md>), [physics](<https://devfeed.tech/tags/physics.md>), [quantum](<https://devfeed.tech/tags/quantum.md>), [quantum-computing](<https://devfeed.tech/tags/quantum-computing.md>), [tensor-product](<https://devfeed.tech/tags/tensor-product.md>), [tensors](<https://devfeed.tech/tags/tensors.md>)

### AI overview

This article explains why the tensor product is the natural mathematical representation of the joint state of multiple qubits. It also introduces basic quantum gates and the definition of a quantum circuit.

### Source excerpt

Last time we left off with the tantalizing question: how do you do a quantum "AND" operation on two qubits? In this post we'll see why the tensor product is the natural mathematical way to represent the joint state of multiple qubits. Then we'll define some basic quantum gates, and present the definition of a quantum circuit. Working with Multiple Qubits In a classical system, if you have two bits with values $ b_1, b_2$, then the "joint state" of the two bits is given by the concatenated string $ b_1b_2$.