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Building Quantum Computers



Emanuel H. Knill


Abstract: In theory, quantum computers can be used to efficiently factor numbers, quadratically speed up many search and optimization problems, and enable currently impossible physics simulations. At first, quantum states appeared to be too fragile for implementing large quantum computers. Fortunately, because of theoretical advances in quantum error correction and fault tolerance, there are now no fundamental obstacles to realizing quantum computers. However, building quantum computers is difficult. Current experiments can barely achieve adequate control of two quantum bits. Nevertheless, the gap between theoretical and practical quantum computing is closing. I will discuss the status and challenges of theoretical and experimental quantum computing.


Quantum computing


Knill, E. (2013), Building Quantum Computers, none, [online], internal:/none (Accessed May 24, 2024)


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Created January 22, 2013, Updated February 19, 2017