Quantum

/ˈkwɒn.təm/

Meaning & Definition

noun

A discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents, often used in the context of quantum mechanics.

In quantum physics, particles such as electrons and photons are described as having a quantum of energy.

An amount or degree of something.

There is a quantum of truth in every rumor.

The smallest possible discrete unit of any physical property.

The quantum of electromagnetic energy is often referred to as a photon.

In finance, a large quantity or unit of a commodity.

The trader purchased a quantum of shares in the tech company.

adjective

Relating to or denoting the smallest discrete amount of a particular physical quantity.

Quantum computing relies on quantum bits, or qubits, for its operations.

Etymology

From Latin 'quantus' meaning 'how much'.

Common Phrases and Expressions

quantum leap

An abrupt change or major advancement.

quantum mechanics

The branch of physics that deals with the mathematical description of the dual particle-like and wave-like behavior of energy and matter.

quantum state

The state of a quantum system, which includes information about the quantum numbers associated with it.

Related Words

quanta

Plural form of quantum, referring to multiple discrete quantities.

quantization

The process of constraining an item to take on discrete values.

Slang Meanings

A significant leap or change, often used in tech contexts.

The update offered a quantum improvement over the previous version.

Referring to something that is cutting-edge or revolutionary.

That design is totally quantum, pushing all the boundaries.