Hi!
I am new to quantum computing, and I'm looking for a quick and easy way to learn about how qbits are implemented.
Is there an up-to-date list/table/article/datasheet that could tell me about photons, trapped ions, etc. and the relative benefits / drawbacks of each type?
Thanks!
A good place to start is Chapter 7 of Nielsen & Chuang, where they talk about the different physical realizations of qubits. It's written 20 years ago so might be a bit out-dated.
I just finished this quantum hardware course on edX: www.edx.org/course/hardware-of-quantum-computer. I recommend it. This course introduces 4 different kinds of qubits including spin qubit (quantum dot or electron), NV center (electron, carbon-13 nuclei, nitrogen atom), superconducting qubit (transmon), and topological qubit (Majorana fermion, anyon). It doesn't include the photons and trapped ions though...
Hi,
I find the following two medium articles useful to understand the physcial realization of superconducting qubits and ion traps.
jonathan-hui.medium.com/qc-how-to-build-a-quantum-computer-with-superconducting-circuit-4c30b1b296cd
jonathan-hui.medium.com/qc-how-to-build-a-quantum-computer-with-trapped-ions-88b958b81484
For an up-to-date list comparing existing technologies, take a look at this recent BCG report:
web-assets.bcg.com/89/00/d2d074424a6ca820b1238e24ccc0/bcg-what-happens-when-if-turns-to-when-in-quantum-computing-jul-2021-r.pdf
While I certainly would begin by focusing on qubits, at the very least one should keep in mind that quantum computing can take other approaches...
Wang, Y., Hu, Z., Sanders, B. C., & Kais, S. (2020). Qudits and high-dimensional quantum computing. Frontiers in Physics, 8, 479.
arxiv.org/abs/2008.00959
Pooser, R., & Jing, J. (2014). Continuous-variable cluster-state generation over the optical spatial mode comb. Physical Review A, 90(4), 043841
arxiv.org/abs/1406.6571
