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Quantum Computing &#8211; First Successes

The first Quantum Computer was build in 1998 at the University of California and consisted of two Qbits.

In 1999 a 3-Qbit Model followed and was outwit in August 2000 by a 5-Qbit Machine. 

The peak of Quantum Computing was so far reached in the year 2001, when a group of scientists at IBMs Almaden Research Center used a 7-Qbit Computer to demonstrate Shor’s algorithm. They were able to factor the number 15 into 3 and 5. 


Quantum Computer at IBM Almaden Research Center

In May 2002: Researches of the University Austin/Texas genetically modified a Virus which could be the basis for a quantum computer. The virus can connect to special molecules with its ‘feet’, which make up electron traps. The big advance of using viruses is the fact, that viruses tend to group in grids.

In the year 2003 Japanese scientists could make up a controlled NOT-Quantum-Gate. It seems to be possible for the future to combine this gate with a 1-Qbit–Rotation-Gate developed by NEC and RIKEN in 1999 to make up the first universal Quantum-Gate.  

2004: At the university of Bonn the first 5-Qbit-Quantum-Register consisting of caesium atoms was developed.



Quantum Information and Information Physics at IBM Research Yorktown


QCL - A Programming Language for Quantum Computers


Recap of IBMs 7-qbit Quantum Computer Using Shor's Algorithm