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The point at which quantum computers perform computations that are unfeasible for classical computers in a reasonable time frame.

A secure communication method that uses quantum mechanics to encrypt and decrypt messages.

A fundamental operation on qubits that changes their state and is the quantum equivalent of a classical logic gate.

A geometrical representation of the pure state space of a two-level quantum mechanical system (qubit).

A quantum phenomenon where particles can cross barriers higher than their kinetic energy, impossible in classical physics.

A step-by-step procedure, based on quantum mechanics principles, used for solving a problem on a quantum computer.

A model of computation that operates by slowly varying the Hamiltonian of the quantum system.

Cryptography methods designed to be secure against the potential threat posed by quantum computers.

A one-qubit quantum gate that transforms a qubit into an equal superposition of two states, if it starts from a basis state.

The first quantum algorithm that illustrates quantum computing's speed advantage for certain problems over classical methods.

An emerging field that combines machine learning and quantum computing to potentially solve complex problems more efficiently.

A quantum phenomenon where particles become interconnected and the state of one immediately influences the state of another, regardless of distance.

A theorem stating that it's impossible to create an identical copy of an arbitrary unknown quantum state.

A process by which the quantum state of a particle is transmitted exactly from one location to another with the help of classical communication and a previously shared quantum entanglement.

A performance metric for quantum computers that measures the size and quality of entangled qubit states they can maintain.

A set of methods to protect quantum information against decoherence and other quantum noise.

The quantum analogue of the discrete Fourier transform, a part of many quantum algorithms.

The process by which a quantum system loses its quantum properties due to interaction with an external environment, resulting in a classical state.

A theoretical quantum computer that uses topological states of matter to preserve quantum coherence and perform quantum computations.

The ability of a quantum system to retain the phase relationships between its states, a crucial aspect for quantum computing.

A method used to find the global minimum of a function by exploiting quantum tunneling.

A mathematical entity that provides a probability distribution for the outcomes of each possible measurement on a system, described by a vector in a Hilbert space

A specific quantum state of two qubits that are maximally entangled.

Using a quantum computer to simulate complex quantum systems that are intractable for classical computers.

The basic unit of quantum information, representing a two-state quantum-mechanical system.

A physical phenomenon that occurs when pairs or groups of particles interact in ways such that the quantum state of each particle cannot be described independently of the others.

A quantum algorithm providing quadratic speedup for unstructured search problems.

A quantum property allowing a particle to be in a combination of all possible states simultaneously.

A model for quantum computation representing a sequence of quantum gates and measurements applied to qubits.