Contact

Quantum Many-Body Systems
Secretariat: Kristina Schuldt
Phone:        +49 89 3 29 05 - 138

Theory
Secretariat: Andrea Kluth
Phone:        +49 89 3 29 05 - 736

Laser Spectroscopy
Secretariat: Ingrid Hermann
Phone:        +49 89 3 29 05 - 712

Attosecond Physics
Secretariat: Corin Abert
Phone:        +49 89 3 29 05 - 612

Quantum Dynamics
Secretariat: Iris Schwaiger
Phone:        +49 89 3 29 05 - 711

Seminars

Seminars

On an irregular basis various Special Seminars take place at the MPQ. The seminars are organized by scientists of our divisions, administration or staff representatives.

The location will be announced with the event.

Month:

Single-shot interpretations of von Neumann entropy

Single-shot interpretations of von Neumann entropy (Henrik Wilming)

In quanum information theory, the von Neumann entropy usually arises in i.i.d settings, while single-shot settings are commonly characterized by (smoothed) Renyi entropies. I discuss new results that give single-shot interpretations to the von Neumann entropy under appropriate conditions. [more]

IMPRS-APS: Light matter interaction at the level of one and no atom

IMPRS-APS: Light matter interaction at the level of one and no atom (Prof. Dr. Leuchs)

In this talk, the exotic story of light matter interaction at the evel of one and even no atom is discussed. A single atom in free space can have significant effects on a single light beam producing e.g. sizeable phase shifts. Regarding the dynamics, a future goal is demonstrating time reversibility of spontaneous emission. But also without any atom, when studying empty space, there are intriguing concepts and future opportunities. [more]

Dissipative engineering of cold atomic systems

Dissipative engineering of cold atomic systems (Dr. Jorge Yago)

Cold atom systems in optical lattices provide a promising platform for a wide variety of applications, ranging from quantum simulation to quantum metrology, due to their extremely high tunability and the ability to derive microscopic models under well-controlled approximations that give access to accurate descriptions. The proper characterization of those systems requires, in many scenarios, taking into account that they are subject to some dissipation sources, as dissipation can drastically modify the behaviour of the known phases of matter or even generate new ones. However, the description of open systems can quickly become numerically unaffordable. [more]

Experimental tests of quantum non-locality beyond EPR-steering and beyond Bell

Experimental tests of quantum non-locality beyond EPR-steering and beyond Bell (Prof. Howard Wiseman)

In this talk I will present an unpublished theory and experiment for two quantum nonlocality scenarios which generalise EPR-steering and Bell, respectively. in the sense of having weaker assumptions and thus more stringent experimental conditions. The first is to allow a finite amount of FTL communication of classical information in an EPR-steering scenario. The second relates to the recent theorem of Bruckner using "Wigner friends" in place of the determinism assumption in some formulations of Bell's theorem. [more]

Quantum Emitters in Non-Conventional Baths (European Research Council)

 
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