A QFT topics for entanglement entropy

shinobi20
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My goal is to study holographic entanglement entropy, but before that I need to study entanglement entropy in QFT first.
I want to know what are the QFT topics that I need to understand in order to proceed in reading papers on entanglement entropy such as,

Entanglement Entropy and Quantum Field Theory
Entanglement entropy in free quantum field theory
Entanglement entropy: holography and renormalization group

An example book could be QFT by Blundell, can anyone point which chapters/topics I need to study?

Contents of the book can be seen here:
Quantum Field Theory for the Gifted Amateur

I am only interested in studying QFT for the sake of understanding entanglement entropy. I have studied until canonical quantization but I still want to get some comments. Also, if anyone can give me extra advice on how to enhance my understanding in this area would be greatly appreciated!

I think I saw @ShayanJ discussed some topics on entanglement entropy so it would be great to also hear from him.
 
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^^^ i second this question! Would love some pointers. Information theory/stat mech maybe?
 
Some good references:

Tom Hartman's lecture notes: http://www.hartmanhep.net/topics2015/

Dan Harlow's lecture notes: https://arxiv.org/abs/1409.1231

The last chapter of Eduardo Fradkin's textbook Field Theories of Condensed Matter Physics concerns entanglement in QFTs and gives an introduction to the Calabrese-Cardy approach.

I quite like the Casini-Huerta review linked in the first post. I have not watched these personally, but you can find video lectures by Horacio Casini given at Perimeter Institute here: http://pirsa.org/index.php?p=speaker&name=Horacio_Casini

I have done some research on entanglement in QFTs myself and would be happy to answer any questions you have.
 
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king vitamin said:
Some good references:

Tom Hartman's lecture notes: http://www.hartmanhep.net/topics2015/

Dan Harlow's lecture notes: https://arxiv.org/abs/1409.1231

The last chapter of Eduardo Fradkin's textbook Field Theories of Condensed Matter Physics concerns entanglement in QFTs and gives an introduction to the Calabrese-Cardy approach.

I quite like the Casini-Huerta review linked in the first post. I have not watched these personally, but you can find video lectures by Horacio Casini given at Perimeter Institute here: http://pirsa.org/index.php?p=speaker&name=Horacio_Casini

I have done some research on entanglement in QFTs myself and would be happy to answer any questions you have.
OMG perfect thank you! :D
 
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
If we release an electron around a positively charged sphere, the initial state of electron is a linear combination of Hydrogen-like states. According to quantum mechanics, evolution of time would not change this initial state because the potential is time independent. However, classically we expect the electron to collide with the sphere. So, it seems that the quantum and classics predict different behaviours!
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