The Click | Quick logo is a graphical representation of a QUBIT - the basic buliding-block of Quantum Information. The "< | >" symbols are the mathematical shorhand for how change occurs at the Quantum scale.

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Bits and Qubits

Classical and Quantum Computing and Information for Kids

Home Bits and Qubits DNA

Today's computers are based on an information building blocks called a BIT. A bit can be set to either one of two states. A quantum computer uses an information building block called a QUBIT. A qubit can be in any one of an infinite number of superpositions of two states at the same time! This means that a quantum computer can solve problems by testing many possible solutions simultaneously.

 

BIT

QUBIT
Implementation

Scanning capacitance image of a 50-nanometer vertical replacement-gate transistor (image by Rafi Kleiman, Lucent Technologies' Bell Labs).

A 50-nanometer transistor -- roughly 2,000 times smaller than the width of a human hair. As of 1999 this was the world's smallest device for storing one BIT of information.

The implementation of a  uses elemenectrons and photons.

CREDIT: Courtesy IBM Research Division, Almaden Research Center
Research Scientist Isaac Chang Holding Quantum Computer Liquid

More Information

States

False   True

 

 

 

A BIT, represented by the two option buttons above, can only be in either one of two states.
You can click either of the option buttons to set the state to either "True'" or "False."

 

 

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Last modified: Friday, 31 October 2003

  

Copyright 2003, Resolution Corp