Quantum (disambiguation)

A quantum is the minimum amount of any physical entity involved in an interaction in physics.

Quantum may also refer to:

Science

Quantum mechanics, a branch of physics
- Quantum theory (disambiguation)
- Quantum field theory
Quantum chemistry
Quantum leap, a term for atomic electron transition, also used metaphorically to refer to any kind of step change
Quantum, in neuroscience, refers to a discrete component of a physiological response
Quantum cognition, in cognitive science
Quantum mind, in cognitive science
Quantum Magazine, a physics and science magazine

Quantum Corporation, a manufacturer of computer data storage products
Quantum Sports Cars, a British-built low-volume car manufacturer
Volkswagen Quantum
Quantum, a line of Maksutov telescopes that were manufactured by Optical Techniques Incorporated (OTI)
Quantum, line of small engines made by Briggs and Stratton
Quantum-class cruise ship
MS Quantum of the Seas

QUANTUM, a suite of attack software by the US National Security Agency (NSA)
Quantum compression, a file compression format
QGIS, an open source GIS program for map-drawing and related functions, formerly called Quantum GIS
A time slice in computer pre-emptive multitasking
Quantum computing, the study of hypothetical computers based on quantum-mechanical principles
Quantum (statistical programming language), a programming language for statistical analysis developed by Quantime
Quantum Corporation, a manufacturer of Hard Disk products from 1980 to 2001
Quantum project of Mozilla to improve its Firefox web browser engine

Quantum meruit, a Latin phrase meaning "as much as he has deserved" and a principle of contract law
Quantum satis, a Latin phrase meaning "the amount which is needed", used in medicine and pharmacology
Quantum sufficit, see Quantum satis

Quantum of Solace, one of five short stories in the 1960 For Your Eyes Only short story collection by Ian Fleming
- Quantum, the villainous organization featured in Casino Royale and Quantum of Solace
- Quantum of Solace, the 22nd James Bond film, released in October 2008 and the direct sequel to the 2006 Bond adventure film Casino Royale
- Quantum of Solace (video game), the video game based on Casino Royale and Quantum of Solace
Quantum (book), a science history book by Manjit Kumar
Quantum Science Fiction, a line of books published by Dial Press from 1977 to 1981
Quantum, a ride at Thorpe Park
Quantum (album), an album by Planet X
Quantum (comics), a comic book character
Quantum (TV series), a half-hour science journalism series aired by the Australian Broadcasting Corporation between 1985 and 2001
Quantum Leap, an American science fiction action/adventure drama broadcast on NBC from March 26, 1989, to May 5, 1993, for a total of five seasons
Quantum (video game), an arcade game released by Atari in 1982
Quantum (2010 video game), a video game developed by Team Tachyon and published by Tecmo for the PlayStation 3
Quantum Stream: a weapon used by Ultraman Gaia