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...

Quantum entanglement is the phenomenon where the quantum state of each particle in a group cannot be described independently of the state of the others...

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

Quantum decoherence is the loss of quantum coherence. It involves generally a loss of information of a system to its environment. Quantum decoherence...

In quantum information theory, quantum state purification refers to the process of representing a mixed state as a pure quantum state of higher-dimensional...

specifically in quantum mechanics, a coherent state is the specific quantum state of the quantum harmonic oscillator, often described as a state that has dynamics...

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...

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

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

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

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

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

non-quantum) communication. For example, it is impossible to copy data encoded in a quantum state. If one attempts to read the encoded data, the quantum state...

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

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

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

Quantum radar is a speculative remote-sensing technology based on quantum-mechanical effects, such as the uncertainty principle or quantum entanglement...

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

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

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

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

information as binary states (represented by "1"s and "0"s), quantum memory stores a quantum state for later retrieval. These states hold useful computational...

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

A quantum Hall state gives rise to quantized Hall voltage measured in the direction perpendicular to the current flow. A quantum spin Hall state is a...

Quantum mechanics is the study of matter and its interactions with energy on the scale of atomic and subatomic particles. By contrast, classical physics...

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

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

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