Physik-Combo

21 Sep 2020, 09:00 → 23 Sep 2020, 18:45 Europe/Berlin

The Physik-Combo - a transregional training initiative of the RTG 2522 Jena Leipzig - provides in-depth research training in topical areas in the context of "Strong Dynamics and Criticality in Quantum and Gravitational Systems".

Its program consists of compact lecture courses delivered by invited experts in the field and project talks contributed by the RTG fellows and guests.

The Physik-Combo continues the tradition of the Mitteldeutsche Physik-Combo. 

Ashtekar_References.pdf

Cardoso_BlackHolePhysics_II.pdf

Cardoso_BlackHolePhysics_I.pdf

Klein_QuantumFieldsInsideBlackHoles.pdf

Wilde_QuantumRenyiEntropies.pdf

Wilde_TheoryOfQuantumEntanglement.pdf

Monday, 21 September

12:00 → 12:15 Opening address

Speaker: Stefan Hollands (Leipzig)

12:15 → 12:45 Quantum fields inside black holes

Speaker: Christiane Klein (Leipzig)

12:45 → 13:00 Break

13:00 → 14:30 Applications of asymptotic safety

Speaker: Astrid Eichhorn (Odense)

14:30 → 14:45 Lecture Q&A

14:45 → 15:00 Break

15:00 → 16:30 Black hole physics

Speaker: Vitor Cardoso (Lisbon)

16:30 → 16:45 Lecture Q&A

16:45 → 17:15 Break

17:15 → 18:45 Quantum Information Theory

Speaker: Mark Wilde (Baton Rouge)

18:45 → 19:00 Lecture Q&A

Tuesday, 22 September

12:45 → 13:15 Flat-Space Higher-Spin Gravity in 2+1 Dimensions

Speaker: Michel Pannier (Jena)

13:15 → 13:45 Unfaithfulness of tidal gravitational-wave approximants and equation of state constraints from binary neutron star signals

Gravitational-wave signals from binary neutron star coalescences carry information about the star's equation of state in their tidal signatures. A major issue in the inference of the tidal parameters (or directly of the equation of state) is the systematic error introduced by waveform approximants. In this talk I will discuss their impact on the loud, high signal to noise ratio events
that will be observed by advanced and third generation detectors, and show how current state of the art waveform models are insufficient to unequivocally infer equation of
state constraints from GW PE.

Speaker: Rossella Gamba (Jena)

13:45 → 14:00 Break

14:00 → 15:30 Black hole physics

Speaker: Vitor Cardoso (Lisbon)

15:30 → 15:45 Lecture Q&A

15:45 → 16:00 Break

16:00 → 17:30 Loop Quantum Gravity: Basics and Recent Advances

Speaker: Abhay Ashtekar (Penn State)

17:30 → 17:45 Lecture Q&A

17:45 → 18:15 Break

18:15 → 19:45 Quantum Information Theory

Speaker: Mark Wilde (Baton Rouge)

19:45 → 20:00 Lecture Q&A

Wednesday, 23 September

12:00 → 12:30 A twisted approach to supersymmetric Yang-Mills theory on the lattice

Speaker: Marc Steinhauser (Jena)

12:30 → 13:00 Towards a manifestly supersymmetric formulation of loop quantum supergravity

We study the idea to quantize supergravity in the framework of loop quantum gravity in a way such that the resulting theory still reflects, at least partially, the underlying supersymmetry. Therefore, following the approach of D'Aurea and Fre, we consider supergravity as super Cartan geometry and derive a super analog of Ashtekar's connection. This sets the stage for a quantisation of the theory that might lead to a unified description of both, gravity and matter degrees of freedom. We will then apply this apporach to symmetry reduced models and will then see that this leads in a very elegant way to a quantum theory in accordance with the standard state space of loop quantum cosmology in presence of fermionic matter fields.

Speaker: Konstantin Eder (Erlangen)

13:00 → 13:30 Curvature Bound from Gravitational Catalysis in a thermal background

Speaker: Abdol Sabor Salek (Jena)

13:30 → 14:00 Break

14:00 → 15:30 Applications of asymptotic safety

Speaker: Astrid Eichhorn (Odense)

15:30 → 15:45 Lecture Q&A

15:45 → 16:15 Break

16:15 → 17:45 Big Bang, Black Holes and Gravitational Waves: Examples of Paradigm Shifts in Fundamental Science

Speaker: Abhay Ashtekar (Penn State)

17:45 → 18:00 Lecture Q&A

18:00 → 18:15 Break

18:15 → 18:45 GrK PI Meeting

18:15 → 18:45 GrK Student Meeting