What is a complete book for introductory quantum field theory?
The book left me delighted: QFT is not that bad after all. Zeidler E., Quantum field theory, Vol. 1, 2 and 3. Initially intended to be a six-volume set, although I believe the author only got to publish …
What are the input and output of QFT and IQFT, respectively?
May 29, 2021 · The first book said, if we input an n -qubit non-superposition state into QFT, the QFT will output an n -qubit superposition state with periodical phases. On the other hand, …
How does the QFT circuit correspond to the FFT algorithm?
Nov 10, 2024 · As mentioned at length in this answer, in good part taking inspiration from these online pdf notes, there is a very direct relation between the quantum Fourier transform (QFT) …
Is QFT really faster FFT? - Quantum Computing Stack Exchange
May 1, 2023 · For QFT I just know that it operates with the phases in Fourier basis, so the result of such transform is the rotation of each qubit for the angle, which is factor of 2 more or less …
What do field operators in QFT act on? - Physics Stack Exchange
Apr 8, 2021 · Thank you, I found a lot of useful information in the first post. So if I get it right, by acting with the field operator on the Fock space, we can get the expectation value of the field …
What is the purpose of the Quantum Fourier Transform or what …
Mar 3, 2017 · Truth be told, it's my first time to learn about other applications of Quantum Fourier Transform (QFT) rather than Shor's algorithm alone. I mean, addition and multiplication.
What does a field represent in QFT? - Physics Stack Exchange
Dec 11, 2021 · What does a field represent in QFT? The fields of QFT, in this representation, are the plain wave solutions on which the differential creation and annihilation operators operate.
Example of Quantum Fourier Computation for three qubits
I am currently going through Nielsen's QC bible and having still some foundational / conceptual problems with the matter. I have tried to retrieve this $8 {\\times} 8$ matrix describing the QFT …
What is the difference between quantum field theory (QFT) and ...
Dec 20, 2024 · If QFT and RQM are actually not the same thing, then what is the difference? And how do we understand the difference from the first principles (I mean by giving axioms and …
Online QFT video lectures - Physics Stack Exchange
I'm aware of Sidney Coleman's 1975/76 sequence of 54 lectures on Quantum Field Theory. Are there any other high-quality QFT lecture series available online?