These quantum computers already exist

The first quantum computers with a few qubits were already created in the 1990s. After the turn of the millennium, researchers were able to make increasing progress with the entanglement of more and more qubits: 

 

 

 

Different manufacturers of quantum computers currently often work with different physical and technical approaches. This often makes it difficult to compare the respective models. Anyone wishing to estimate the performance of current quantum computers must always consider not only the number of qubits but also the error rate and the extent to which the individual bits are entangled with each other and can work together. 

 

Manufacturer	Technology	Number of qubits	Limitations	Application possibilities
	"Quantum Annealer"
D-Wave Systems	Solution of optimization problems with the help of quantum fluctuation	5640	Qubits are only entangled with each other field by field	Limited to optimization problems
Google	Universal quantum computer based on superconductors	53	Entanglement not yet completely successful, need temperatures near zero	All types of quantum software
IBM	Universal quantum computer based on superconductors	50	Condition can not be maintained for a long time yet	All types of quantum software
Microsoft	Topological quantum computer with built-in quantum error correction	Still under development	Elaborate and ambitious goal	All kinds of quantum software and complex computations with low error rate
Alibaba	Universal quantum computer based on superconductors	11	Available to the public only through the Chinese website	All types of quantum software
Honeywell	Ion trap quantum computer with moving qubits	10	Qubits are very well connected	All types of quantum software

A uniform classification to classify the performance of the different quantum computers is currently also part of the research in this subject area. All processors still suffer from the fact that they are extremely error-prone and can only work in isolation from any environmental influences. There is therefore still a long way to go before a commercial quantum computer is available to everyone. However, many manufacturers are making the computing power of their prototypes available in the lab via the Internet.
 

 

See the entire blog series "How Quantum Computers Will Revolutionize Digital Marketing" here.

• Quantum computing in a nutshell - what is it?
• These quantum computers already exist 
• How quantum computers work 
• Advantages and disadvantages of quantum computing 
• Application areas of quantum computing 
• The revolutionary technology of quantum computing 
• Quantum Computing in Digital Marketing 
• Cybersecurity in the Age of Quantum Computers
• Conclusion: The Future of Quantum Computing in Digital Marketing