Quantum Computer, how to actually build one?

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So last year I took a course in quantum computing, but I didn't understand how can you build quantum computer?

I mean do you have literature on the technical issues of physically engineering such an apparatus?

The course I took was really theoretical, but I don't understand yet of how to build such a thing?

Any literature on applied quantum computing?

Thanks in advance.
 
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The last chapter of the book "Fundamentals of Quantum Optics and Quantum Information" by Peter Lambropoulos and David Petrosyan has information about this.
 
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