Unit2 (2)

Article: Quantum computer
How it changes the future ofcomputers?

What's Moore's law?
The data density of storable information on a silicon circuit,
and the corresponding computing speed, is doubling every
18 to 24 months. And he predicted that by 2015.

What is a Quamtum computer?
In a quantum computer, information would not be stored
as strings of "1"s and "0"s, but as a series of quantum
mechanical states: spin directions of electrons or polarization
orientations of photons.

What are the two obstacles of quantum computing?
The slightest outside disturbance.
Error correction schemes developed for classical computers
will not work for subatomic computers.

How to overcome this problem?
Scientists are working on a method of spreading information over several qubits.

How does slow and frozen light advance the possibilities of quantum computing?
To imprinted on the atoms' states when the pulse is halted.