Quantum mechanics essentials: Everything you need for quantum computation

[@lorenzomagro2257]

is this a first lesson of the quantum information course?

[@tobiasjosborne]

This is part of a winter school on optimization theory and quantum computing held for members of a quantum computing consortium based in Germany. Several lectures are planned, and they will be uploaded in the coming month. Sincerely, Tobias Osborne

[@aravin314]

@@tobiasjosborne can you please upload the rest of the lectures ? sincerely Aravind

[@tobiasjosborne]

@@aravin314 In the end these were only these two lectures on QM and there were no further lectures.

[@timurkabadayi309]

Thanks Tobias very nice lecture. In less than two hours I get very fundamental understanding on QC

[@ribamarsantarosa4465]

Hi, many thanks! I'm around the minute 58:00 and struggling to find exactly what this "sigma ^zeta" "F" means in simplified terms of quantum computing. I'll try to pose my question as this: which resource (like a wikipedia page) should I lookup to expect to find the definition p("click") = tr( ho F)? Where in the literature is this F defined?

[@ribamarsantarosa4465]

btw, maybe one of the best classes i ever watched about anything (I hope someday I'll post a wikipedia page to AI and ask "explain me this as it was Tobias Osborne!!) 🤣

[@digorna]

Beautiful lecture, thank you for sharing.

[@learnenglishfastwithJason]

where does F come from ? i havent seen this on any source i have used so far

[@rafaelbendavid4041]

in one course of QM a professor said that physicists use a special kind of Probability theory where the amplitudes are what is added. Wouldnt it be more precise to say that QM is a pseudo-probabilistic?

[@tobiasjosborne]

Many thanks for your comment: I am using the terminology with reference to "generalized probabilistic theories", of which QM is an example. See e.g., en.wikipedia.org/wiki/Generalized_probabilistic_theory Sincerely, Tobias Osborne

[@rafaelbendavid4041]

@@tobiasjosborne thank you but then is a different story. I have never heard of a generalized PT

[@rafaelbendavid4041]

@@tobiasjosborne also, do you think its possible to give QM a non-probabilistic interpretation?

[@hajrullah8855]

is this part of some course @ the LUH?

[@tobiasjosborne]

Many thanks for your comment. Please see my response to lorenzo magro above. Sincerely, Tobias Osborne

[@tubs-algorithmik4645]

Here is the playlist for the whole sequence, changing between classical and quantum computation: kzbin.info/aero/PL48X6M57PpK83hqVPHYQWfllF3zJSL-XK

[@tomwu163]

Are the Quantum gates mentioned in this lecture special cases of Quantum channels? The lecture itself is very clear, I'm just wondering whether these are somewhat related

[@tobiasjosborne]

Yes they are directly related: to every gate U there is a corresponding quantum channel E given by E(rho) = U rho U^dagger I hope this helps; sincerely, Tobias Osborne

[@BeyondtheBreakz]

Yeah yeah yeah easy as that.