Introducing a transistor that can switch between two energy states

A team of engineers from the University of Illinois unveiled an upgrade to a transistor laser that can be used to increase computer processor speeds and form two stable energy states with the ability to switch between the two quickly.

Computers today are restricted by a delay that is formed as electrons travel through the wires and switches on the computer chip. To overcome this, engineers ideally seek to develop a computer that transmits data using light, rather than electricity, because light travels quicker.
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Reference: Electronic Product Magazine
                   Jennifer Korszun