a unit of quantum information—similar to a classical bit

In quantum computing, a qubit (short for quantum bit) is a unit of quantum information—similar to a classical bit.

a unit of information analogous to a bit in classical computing (binary digit)

In quantum computing, a qubit is a unit of information analogous to a bit (binary digit) in classical computing, but it is affected by quantum mechanical properties such as superposition and entanglement which allow qubits to be in some ways more powerful than classical bits for some tasks.

one of the smallest units of a quantum computing system

A qubit is one of the smallest units of a quantum computing system.

a unit of quantum information that can simultaneously be both 0 and 1 as well as an infinite number of intermediate states between 0 and 1

A qubit is a unit of quantum information that can simultaneously be both 0 and 1 as well as an infinite number of intermediate states between 0 and 1.

a two-state quantum-mechanical system, such as the polarization of a single photon

A qubit is a two-state quantum-mechanical system, such as the polarization of a single photon: here the two states are vertical polarization and horizontal polarization.

a unit of quantum information, where in contrast to the bit in computer information (one or zero), the qubit can be zero, one or a superposition of both (Schumacher 1995)

The qubit, or quantum-bit, is a unit of quantum information, where in contrast to the bit in computer information (one or zero), the qubit can be zero, one or a superposition of both (Schumacher 1995).

a basic unit of quantum information that can take on richer states that extend beyond just 0 and 1

In quantum computing, a qubit is a basic unit of quantum information that can take on richer states that extend beyond just 0 and 1.

any quantum mechanical system with two possible states

A qubit is any quantum mechanical system with two possible states, but there are many ways of physically creating such a system; some approaches have used rare substances like diamonds or cesium.

a unit of information , described by a 'one'a 'zero', or a mixed 'superposition' of both states

A qubit is a unit of information described by a 'one', a 'zero', or a mixed 'superposition' of both states.

a quantum version of a computer bit, which is the smallest unit of data in a computer

A qubit, in simplest terms, is a quantum version of a computer bit, which is the smallest unit of data in a computer.

a quantum system

A qubit is a quantum system, and this world has two possible states, kind of like a classic computer bit can be a 0 or a 1.

a unit of quantum information— the fundamental currency of quantum computing, which is predicted to be hugely more efficient for solving problems that are challenging for traditional computers, such as breaking secret codes

A qubit is a unit of quantum information—the fundamental currency of quantum computing, which is predicted to be hugely more efficient for solving problems that are challenging for traditional computers, such as breaking secret codes.

a unit of information described by a zero or a 1

A qubit is a unit of information described by a zero or a 1.

a unit of information that, unlike a binary unit (bit) used in classical computing architecture, can exist in a superposition of two states at once

A qubit is a unit of information that, unlike a binary unit (bit) used in classical computing architecture, can exist in a superposition of two states at once.

a quantum system that encodes 0 and 1 into two distinct quantum states

Well a qubit is a quantum system that encodes 0 and 1 into two distinct quantum states.

a unit of information , described by a “one”a “zero”, or a mixed “superposition” of both states

A qubit is a unit of information described by a “one”, a “zero”, or a mixed “superposition” of both states.

a unit of information that, like a bit, exists in either of two physical states

The analog of a computer bit, a qubit is a unit of information that, like a bit, exists in either of two physical states.

a unit of quantum information which is able to take advantage of the polarization of a single photon to to be in a superposition of two states at the same time

In quantum mechanics, a qubit is a unit of quantum information which is able to take advantage of the polarization of a single photon to to be in a superposition of two states at the same time.

a unit of information which, unlike a ‘bit’ that expresses data in binary, can have any value between 0 and 1, or even both simultaneously

A ‘qubit’ is a unit of information which, unlike a ‘bit’ that expresses data in binary, can have any value between 0 and 1, or even both simultaneously.