In quantum physics, a quantum state is a mathematical entity that embodies the knowledge of a quantum system. Quantum mechanics specifies the construction...

In quantum field theory, the quantum vacuum state (also called the quantum vacuum or vacuum state) is the quantum state with the lowest possible energy...

proximity in such a way that the quantum state of each particle of the group cannot be described independently of the state of the others, including when...

In quantum information science, the Bell's states or EPR pairs: 25  are specific quantum states of two qubits that represent the simplest examples of...

A quantum computer is a computer that exploits quantum mechanical phenomena. On small scales, physical matter exhibits properties of both particles and...

location to the next, quantum teleportation only transfers quantum information. The sender does not have to know the particular quantum state being transferred...

Quantum superposition is a fundamental principle of quantum mechanics that states that linear combinations of solutions to the Schrödinger equation are...

of all quantum physics, which includes quantum chemistry, quantum field theory, quantum technology, and quantum information science. Quantum mechanics...

for finding a probability involves combining a quantum state, which mathematically describes a quantum system, with a mathematical representation of the...

In physics, a quantum state space is an abstract space in which different "positions" represent not literal locations, but rather quantum states of some...

In quantum computing and specifically the quantum circuit model of computation, a quantum logic gate (or simply quantum gate) is a basic quantum circuit...

In quantum computing, a quantum algorithm is an algorithm that runs on a realistic model of quantum computation, the most commonly used model being the...

The term quantum state discrimination collectively refers to quantum-informatics techniques, with the help of which, by performing a small number of measurements...

physically realized with a two-state device. A qubit is a two-state (or two-level) quantum-mechanical system, one of the simplest quantum systems displaying the...

interpretation of quantum mechanics is an attempt to explain how the mathematical theory of quantum mechanics might correspond to experienced reality. Quantum mechanics...

entanglement Quantum fiction Quantum field theory Quantum lithography Quantum mechanics Quantum mind Quantum mysticism Quantum number Quantum optics Quantum sensor...

electron's state. Its values are natural numbers (from one) making it a discrete variable. Apart from the principal quantum number, the other quantum numbers...

Quantum information is the information of the state of a quantum system. It is the basic entity of study in quantum information theory, and can be manipulated...

The quantum mind or quantum consciousness is a group of hypotheses proposing that local physical laws and interactions from classical mechanics or connections...

Quantum key distribution (QKD) is a secure communication method that implements a cryptographic protocol involving components of quantum mechanics. It...

noise on stored quantum information, faulty quantum gates, faulty quantum state preparation, and faulty measurements. Effective quantum error correction...

formulations of quantum mechanics continue to be used today. At the heart of the description are ideas of quantum state and quantum observables, which...

fermions) cannot simultaneously occupy the same quantum state within a system that obeys the laws of quantum mechanics. This principle was formulated by Austrian...

Quantum networks form an important element of quantum computing and quantum communication systems. Quantum networks facilitate the transmission of information...

In quantum computing, the quantum Fourier transform (QFT) is a linear transformation on quantum bits, and is the quantum analogue of the discrete Fourier...

Superconducting quantum computing is a branch of solid state quantum computing that implements superconducting electronic circuits using superconducting...

In quantum mechanics, wave function collapse, also called reduction of the state vector, occurs when a wave function—initially in a superposition of several...

The many-worlds interpretation (MWI) is an interpretation of quantum mechanics that asserts that the universal wavefunction is objectively real, and that...

standard description of quantum physics. Prior to quantum physics, it was thought that a physical system had a determinate state that uniquely determined...

This is a timeline of quantum computing. Stephen Wiesner invents conjugate coding (published in ACM SIGACT News 15(1): 78–88). James Park articulates...