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 …
How does the QFT circuit correspond to the FFT algorithm?
Nov 10, 2024 · the first version Don Coppersmith Cooley-Tukey butterfly Schönhage–Strassen algorithm Hardy and Wright Bertrand's Postulate Cleve and Watrous's 2000 paper Intuitively, …
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, …
Is QFT really faster FFT? - Quantum Computing Stack Exchange
May 1, 2023 · @glS, I saw some topics on QFT in the framework of quantum algorithms (or as a part of them) and unintentionally call the QFT as "algorithm", sorry for that ( I just would like to …
What are Quantum Field Theories? - Physics Stack Exchange
Aug 17, 2023 · Unfortunately, everywhere I search about QFT, them are talking about the Standard Model itself (QED,Weak,...) (for example, Wikipedia says "In theoretical physics, …
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.
A No-Nonsense Introduction to Quantum Field Theory
QFT is a big subject and GR is more standalone. Reading a chapter in that book will run you about 20 min and it doesn't hurt the brain because it's all stuff an undergrad can easily do. The …
programming - How to apply QFT to the last two qubits of a Qiskit ...
Mar 14, 2023 · In general, to build a Quantum Fourier Transform on an arbitrary number of qubits, you can use the QFT class already implemented in Qiskit. In particular, to apply it to the last …
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 difference between quantum field theory (QFT) and ...
Dec 20, 2024 · The dynamical system is specified by the quantity $\phi$ existing at all pounts of spacetime, and so consists of a system of fields. Relativistic quantum theory is neccessarily a …