The lectures on the physics of driven open quantum matter provide a basic exposition of the Keldysh field theory formulation of driven open quantum matter, starting from the many-body Lindbladian, and then address various more specialized topics.

• Driven Open Quantum Matter and KPZ physics (Videos, Lecture Slides), Les Houches Doctorate School “KPZ: new trends in theories and experiments”, Les Houches, France (April 2024): Focus on connection to Kardar–Parisi–Zhang physics, non-equilibrium universality, symmetries and conservation laws.
• Driven Open Quantum Systems: From Micro- to Macrophysics (Videos, Lecture Slides), School on Emergent Phenomena out of equilibrium, ICTP Trieste, Italy (August 2023): Focus on connection to measurement induced phase transitions.
• Driven Open Quantum Systems: From Micro- to Macrophysics (Videos, Lecture Slides), School on Quantum Many-Body Phenomena in Non-Equilibrium Physics, SAIFR Sao Paulo, Brasil (July 2023): Focus on connection to measurement induced phase transitions.
• Lindblad meets Keldysh: Phase transitions, topology, and measurements (Videos, Lecture Slides), Boulder Summer School 2021 “Ultracold Matter”, Boulder, USA (via zoom, July 2021): Focus on symmetry and topology out of equilibrium.
• Quantum States and Phases in Dissipative Many-Body Quantum Systems with Cold Atoms (Videos, Lecture Slides), Arnold Sommerfeld Summer School "Condensed Matter Physics with Ultracold Quantum Gases", Munich, Germany (October 2009).

These lectures are in part based on the review articles:

[1] L. M. Sieberer, M. Buchhold, S. Diehl, Keldysh Field Theory for Driven Open Quantum Systems, Rep. Prog. Phys. 79, 096001 (2016), arxiv:1512.00637;
[2] L. M. Sieberer, M. Buchhold, J. Marino, S. Diehl, Universality in driven open quantum matter, Rev. Mod. Phys. 97, 025004 (2025), arxiv:2312.03073.

The lectures provide an introduction to the physics of cold atomic many-body systems, such as effective theories, weakly interacting bosons and fermions, BCS-BEC crossover, phase diagram and microscopic derivation of the Bose-Hubbard model. Some more specialized topics follow.

• Many-Body Physics with Cold Atoms, Innsbruck University, Winter term 2012/2013, Lecture Slides.
• Many-Body Physics with Cold Atoms, XXIV. Heidelberg Graduate Lectures, April 2010, Part I, Part II, Part III

There is an associated review article.

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