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QST-Theory: Quantum Information [PH1010]

Wintersemester 2020/21

Lecturers: Prof. Dr. J. Ignacio Cirac Pfeil, Prof. Dr. Michael M. Wolf
Assistants: Guillermo Gonzalez, Zhi-Yuan Wei , Zahra Khanian, Farzin Salek
Lectures: Tue 14:15-16:00 online, Thu 14:15-16:00 online  
Exercise classes: t.b.a. (all online)  

The course, which is part of the Master’s Program Quantum Science & Technology, will be entirely online. Lecture videos will be posted on this website every Tuesday and Thursday at 14:15, starting on Nov. 3rd 2020.



Quantum Information offers an introduction to the theoretical foundations of Quantum Science and Technology. The course starts with a brief motivation and an introduction to fundamental concepts and the basic formalism (pure/mixed states, evolution, completely positive maps, measurements Schmidt decomposition, tomography, quantum estimation, hypothesis testing). Then the concept of entanglement is discussed in detail, including the distinction between pure and mixed-state entanglement, entanglement entropy, quantification and conversion. Subsequently, some of the revolutionary promises of exploiting entanglement are presented, including dense coding, quantum teleportation and quantum cryptography. Next the Bell inequalities, characterizing the quantum weirdness of entanglement and non-locality, are introduced and discussed in detail. Subsequent chapters cover central applications of quantum information theory: quantum computation, quantum algorithms such as those of Deutsch, Shor and Grover, and quantum simulation. Final core topics are decoherence, Lindbladian descriptions thereof, and error correction schemes to counteract the consequences of decoherence and protect fragile quantum information. The module will typically also include one or more optional topics, such as many-body entanglement, topological quantum computation, quantum complexity, or tensor networks, which link quantum information theory to many-body physics.


date video content further reading
Nov 3      



The exam will be written on Feb. 26 2021, 11:30 am. There will be a repeat exam on March 31 2021, 11:30 am.


Standard articles, textbooks and lecture notes on Quantum Information, for example: