Quantum Mechanincs

Essay specific features

 

Issue:

Technology

 

Written by:

David C

 

Date added:

December 16, 2013

 

Level:

University

 

Grade:

A

 

No of pages / words:

10 / 2780

 

Was viewed:

5528 times

 

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Essay content:

For example, in digital computers, the voltage between the plates in a capacitor represents a bit of information: a charged capacitor denotes bit value 1 and an uncharged capacitor bit value 0. One bit of information can be also encoded using two different polarisations of light or two different electronic states of an atom...
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However, if we choose an atom as a physical bit then quantum mechanics tells us that apart from the two distinct electronic states the atom can be also prepared in a coherent superposition of the two states. This means that the atom is both in state 0 and state 1. To get used to the idea that a quantum object can be in `two states at once' it is helpful to consider the following experiment (Fig...
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