The goal of this physics school is to offer master and Ph.D. students from the field of experimental and theoretical physics as well as mathematics and philosophy a coherent introduction to the subject of quantum gravity in low energy quantum systems from both theoretical and experimental perspectives. 

The participants will receive training in the theoretical description of quantum system under the influence of gravity and how to predict observable signatures. They will learn how specific experimental setups can be used to test the theoretical predictions. This education equips the participants with the skills to bridge the gap between theory and experiment in the field of the interplay between quantum systems and classical and quantum gravity research in the future.

This is the second of a series of Training Schools organized by the European COST Action CA23130 - BridgeQG: Bridging high and low energies in search of quantum gravity (https://web.infn.it/BridgeQG).

While the focus of the first training school was on the high-energy aspects of the BridgeQG research topics, the focus of this training school will be on the low-energy aspects.

A third school will cover the combination of the two branches.

The school consists of four main lectures, which are accompanied by tutorial classes. In addition there will be an introductory short lecture on quantum gravity phenomenology, and a concluding short lecture. Lecture notes will be published after the school.

Lecturers and topics (Final titles of the lectures will be announced soon)

Časlav Brukner: quantum clock and quantum reference frames for quantum gravity

Rainer Kaltenbaek: tests of quantum physics is beyond Earth, using satellites and space experiments to probe entanglement, superposition, and the limits of quantum mechanics in macroscopic bodies

Sofia Qvarfort (TBC): metrology of the gravitational field with quantum systems,metrology with opto-mechanical systems,measuring gravitational waves

Benjamin Stickler: levitated systems, optomechanics, quantum/classical control of motion using light, such as cooling, and applications of levitated systems for fundamental tests

Simone Manti: testing quantum gravity with underground experiments

About COST Action CA23130 BridgeQG

Recent advances in both high-energy astrophysics and high-precision table-top experiments are pushing our capability to test nature in regimes where gravity meets quantum physics. Astrophysical observations are now potentially sensitive to tiny residual effects of Planck-scale physics, while table-top experiments are reaching the precision needed to test the interplay between gravity and quantum systems at ultra-low energies. Investigations of these regimes, in particular once they are combined, will provide important clues towards the understanding of the full-fledged theory of quantum gravity.

The main aim of the Action is to bring together scientists with a variety of complementary expertise: theorists working on quantum gravity or the interplay between gravity and quantum physics with quantum information and quantum optics tools, and experimentalists involved in astrophysical searches for quantum gravity, or investigating the effects of gravitational interactions on quantum systems. The resulting interdisciplinary collaboration will develop a common language and a shared framework which will boost investigations at the interface between high-energy quantum gravity and quantum aspects of gravity in the weak-field regime. The Action will also facilitate cross-disciplinary training and exposure of young scientists to different communities with a common goal, serving as a career accelerator. The synergy within this newly-formed community will be essential to systematically search for quantum gravity on all scales, and possibly find the first signatures of new physics.

J. Bolmont (LPNHE, Paris, France), L.-Q. Chen (Vienna U, Austria), C. O. Curceanu (INFN-LNF, Italy),  A. Domi (ECAP Erlangen-Nürnberg U, Germany), M. Fadel (ETH Zürich, Switzerland), T. Galley (IQOQI Vienna, Austria), F. Giacomini (ETH Zürich, Switzerland), G. Gubitosi (U Napoli Federico II, Italy), F. Mercati (Burgos U, Spain), A. Platania (Graz University, Austria), C. Pfeifer (ZARM, Bremen U, Germany), G. Rosati (U Cagliari, Italy), D. Staicova (INRNE, Bulgaria), J. Strišković (Osijek U, Croatia), T. Terzic (Rijeka U, Croatia), M. Tórtola (Valencia U, Spain)

Acknowledegments

This conference is supported by COST (European Cooperation in Science and Technology). COST is a funding agency for research and innovation networks. COST Actions help connect research initiatives across Europe and enable scientists to grow their ideas by sharing them with their peers. This boosts their research, career and innovation.