# What is Quantum Theory Wiki?

**Quantum mechanics**(QM; also known as

**quantum physics**,

**quantum theory**, the wave mechanical model, or matrix

**mechanics**), including

**quantum**field

**theory**, is a fundamental

**theory**in

**physics**which describes nature at the smallest scales of energy levels of atoms and subatomic particles.

A.

### What is the quantum theory in simple terms?

**Quantum mechanics**is the body of scientific laws that describe the wacky behavior of photons, electrons and the other particles that make up the universe. Credit: agsandrew | Shutterstock.

**Quantum mechanics**is the branch of

**physics**relating to the very small.

#### What is the quantum theory equation?

In**quantum**mechanics, the Schrödinger**equation**is a mathematical**equation**that describes the changes over time of a physical system in which**quantum**effects, such as wave–particle duality, are significant. Those two parameters are sufficient to describe its state at each time instant.#### What is the quantum field theory?

In**theoretical physics**,**quantum field theory**(**QFT**) is the**theoretical**framework for constructing**quantum**mechanical models of subatomic particles in particle**physics**and quasiparticles in condensed matter**physics**.**QFT**treats particles as excited states of an underlying**field**, so these are called**field**quanta.#### What is the quantum healing?

**Quantum healing**is a pseudo-scientific mixture of ideas purported to draw on**quantum**mechanics, psychology, philosophy, and neurophysiology that asserts that**quantum**phenomena are responsible for health and wellbeing.**Quantum healing**is a form of alternative medicine. The term was coined by Deepak Chopra.

B.

### Who is the founder of quantum theory?

Building on de Broglie's approach, modern quantum mechanics was born in 1925, when the German physicists

**Werner Heisenberg**,**Max Born**, and Pascual Jordan developed matrix mechanics and the Austrian physicist**Erwin Schrödinger**invented wave mechanics and the non-relativistic Schrödinger equation as an approximation to#### What is called a quantum of light?

A**quantum of light**is**called**a photon. Planck's constant, h, is the ratio of the energy of a photon to its frequency: E = hf, so h = E/f. Planck's constant, therefore, determines how much energy is carried by a photon of**light**.#### Who is known as the father of quantum theory?

Max Planck#### Who is the founder of quantum number?

I. The**Principal**Quantum Number (signified by the letter 'n'): This quantum number was the first one discovered and it was done so by**Niels Bohr**in 1913.**Bohr**thought that each electron was in its own unique energy level, which he called a "stationary state," and that each electron would have a unique value of 'n.'

C.

### Who gave the quantum theory?

**Albert Einstein**, one of the few scientists to take Planck's ideas seriously, proposes a quantum of light (the photon) which behaves like a particle. Einstein's other theories explained the equivalence of mass and energy, the particle-wave duality of photons, the equivalence principle, and special relativity.

#### What is the difference between quantum mechanics and quantum physics?

**Quantum mechanics**(QM – also known as**quantum physics**, or**quantum theory**) is a branch of**physics**which deals with physical phenomena at microscopic scales, where the action is on the order of the Planck constant. Some of the relativistic**quantum**field theories would be QED, QCD, and the Standard Model.#### What is the quantum healing?

**Quantum healing**is a pseudo-scientific mixture of ideas purported to draw on**quantum**mechanics, psychology, philosophy, and neurophysiology that asserts that**quantum**phenomena are responsible for health and wellbeing.**Quantum healing**is a form of alternative medicine. The term was coined by Deepak Chopra.#### What is the quantum theory equation?

In**quantum**mechanics, the Schrödinger**equation**is a mathematical**equation**that describes the changes over time of a physical system in which**quantum**effects, such as wave–particle duality, are significant. Those two parameters are sufficient to describe its state at each time instant.

Updated: 5th October 2018