A quantum bit or qubit is the basic unit of information for a quantum computer Consider the followin...........

Science Affairs Electronics and Computers

A quantum bit, or qubit, is the basic unit of information for a quantum computer. Consider the following statements regarding the Qubit:

1. A qubit can take on an in fi nite number of values.

2. Each qubit can represent both a ‘1’ and a ‘0’ at the same time.

Which of the above statements is/are correct?

1 only

2 only

Both 1 and 2

Neither 1 nor 2

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Explanation:

Qubit

A quantum bit, or qubit, is the basic unit of information for a quantum computer, analogous to a bit in ordinary machines.

Unlike a bit, which can have the value 0 or 1, a qubit can take on an in fi nite number of values .

A quantum computer is any device for computation that makes direct use of distinctively quantum mechanical phenomena, such as superposition and entanglement, to perform operations on data.

Superposition means that each qubit can represent both a ‘1’ and a ‘0’ at the same time .

Entanglement happens when two qubits are made to interact in a certain way, and they become inexplicably linked. Once entangled, they start sharing the same properties, no matter how distant they are from each other.