# Introduction to quantum entanglement

" Quantum mechanics deals with a range of phenomena which is also outside the experience of ordinary humans, for which evolution simply did not provide you with the means to visualize. [...] For that reason, quantum mechanics appears extremely weird to us. Physicists rewire themselves and develop ways of thinking about it which are intuitive, but still, quantum mechanics is much much more unintuitive incidentally than the special theory of relativity. And what we are going to try to do here is to expose some of the weirdness of the logic of quantum mechanics."

L. SUSSKIND, Quantum entanglement I

### Prerequisites:

Introduction to quantum mechanics.

### Content:

Introduction to the notion of quantum entanglement using the formalism of Quantum Information theory. We will introduce tensor products, Bell pairs and the definition of product states and entangled states.

### Lecture materials:

### Suggested readings:

The quantum information book:

M. Nielsen, and I. Chuang, Quantum computation and quantum information, Cambridge University Press (2010).

Advanced:

R. Horodecki, P. Horodecki, M. Horodecki and K. Horodecki, Quantum entanglement, Reviews of modern physics (2009).

A bigger picture:

J. Bell, Speakable and unspeakable in quantum mechanics, Cambridge, University Press (1989).