Talks

Monday, 17 July

Caslav Bruckner
Quantum Reference Frames
Magdalena Zych
Relativity of quantum superpositions in the context of superpositions of gravitational sources
Joshua Foo
Quantum superpositions of Miknowski spacetime in theory and in the lab
Jose de Ramon Rivera
Field-particle duality and time-energy uncertainty in measurements of quantum fields
Alessandro Pesci
Classical vs quantum emission of gravitational radiation in the recombination of a delocalized particle
Eduardo Martin-Martinez
Classical vs Quantum theories: when do quantum effects matter in gravity and quantum information?
Jorma Louko
Black Hole Information
Fabio Scardigli
Bekenstein bound and uncertainty relations
Sebastian Murk
Nomen non est omen: why it is too soon to identify ultra-compact objects as black holes
Joseph Schindler
Unitarity and the information problem in an explicit model of black hole evaporation
Kfir Dolev
Holography as a resource for non-local quantum computation
Jinzhao Wang
Some information-theoretic fine prints on the Bekenstein bound
Jonathan Oppenheim
A covariant theory of quantum fields back-reacting on classical space-time
Flavio del Santo
The relativity of indeterminacy
Akira Matsumura
Reduced dynamics with Poincare symmetry in an open quantum system

Tuesday, 18 July

Marios Christodoulou
Quantum Gravity in the Lab
Ohkyung Kwon
Foundational Tests of Quantum Gravity with Single Photon Detection Interferometry
Vasileios Fragkos
On the inference of quantisation from gravity induced entanglement
Michalis Lagouvardos
Gravitational Decoherence
Hudson Loughlin
A 40km Fiber Interferometer to Probe the Interaction of Quantum Light and Gravity
Alessio Belenchia
Testing the foundations of quantum physics with large particles in space
Uwe Fischer
Impact of trans-Planckian excitations on black-hole radiation in dipolar condensates
Chryssomalis Chryssomalakos
Toponomic Quantum Computation
Ryszard Kostecki
Quantum Schwarzschild space-time
Koji Yamaguchi
Improving the efficiently of transmitting quantum information by utilizing correlated quantum fluctuations
Yasaman Yazdi
Entanglement Entropy from Spacetime Two-Point Correlation Functions
Achim Kempf
Emergence of Spacetime from Fluctuations
Marko Vojinovic
Operational verification of the existence of spacetime

Wednesday, 19 July

Bei-Lok Hu
Relativistic Quantum Information from Field Theory
Daniel Terno
What can the information loss problem tell us about black holes?
Tales Rick Perche
Particle detectors from quantum fields
Nicholas Funai
Covariant bandlimitation and sampling for QFT
Richard Lopp
Dimensional Reduction in Quantum Optics
Shih-Yuin Lin
Quantum coherence of relativistic wavepackets moving in electromagnetic vacuum
Robert Mann
Quantum Superpositions of Black Holes
David Kubiznak
Quantum imprints of gravitational shockwaves
Daniele Colosi
Excitation of an Unruh-DeWitt detector by quantum evanescent waves
Mohamemd Alkhateeb
Space-time resolved quantum field approach to Klein tunneling dynamics of fermions and bosons
Hal Haggard
Quantum Tetrahedra and Relativistic Information
Alessio Lapponi
Relativistic quantum communication between harmonic oscillator detectors
Carolyn Wood
Quantum particle detector models
Bruno Torres
A general framework for Gaussian complexity geometry
Jose Polo-Gomez
Unruh effect through machine learning

Thursday, 20 July

Esteban Castro Ruiz
Quantum Causal Orders
Christina Giamartzi
Full characterisation of quantum non-Markovian processes
Natalia Salome-Moller
The quantum switch in flat, curved and quantum spacetimes
Veronika Baumann
Different perspectives in (non)-causal quantum processes
Nicola Pinzani
The Topology and Geometry of Causality
Venkatesh Vilasini
Quantum information-theoretic causal structures and their compatibility with spatio-temporal causality
Robert Oeckl
Towards a local and compositional notion of measurement in Quantum Field Theory
Demosthenes Ellinas
Superposition of topologies via indefinitely ordered composition of quantum channels
Anne-Catherine de la Hamette
Quantum diffeomorphisms cannot make indefinite causal order definite
Adamantia Zampeli
Composition of observables in the general boundary quantum field theory
Claudio Paganini
The Causal Compatibility Conjecture and its implication on time travel
Fabio Costa
A de Finetti representation for quantum causal structures
Eleftherios Tselentis
Admissible Causal Structures and Correlations
Fil Simovic
Black Hole Thermodynamics: Lessons in Unitarity, Information, and Quantum Gravity

Friday, 21 July

Albert Roura
Long-baseline quantum optics experiments in space
Daniel Braun
Quantum metrology and the measurement of small gravitational effects
Maxime Jacquet
Black hole experiments with polaritons
Andrey Moskalenko
Finite-time Unruh effect in a nonlinear-optical system: diamond temperature and transition to the Unruh-temperature regime
Cisco Gooding
Vacuum Entanglement Probes for Ultra-cold Atom Systems
Cameron Bunney
Circular motion analogue Unruh effect in a 2+1 thermal bath
Kazuhiro Yamamoto
Two-mode theory of suspended mirror coupled cavity light: Wiener filter analysis

One of the most important developments in physics during the last twenty years is the emergence of the science of quantum information. Quantum information theory is a generalisation of classical information theory to the quantum world. It emerged from quantum theory combined with technological advancements that allow controlled and precise measurements on particles at the atomic scale.

Quantum information theory is mostly discussed in terms of non-relativistic quantum mechanics. An important aim of RQI research is to place key quantum information concepts within the more fundamental framework of relativistic physics.

Quantum theory and general relativity are the fundamental theories of modern physics, both highly successful in their domains. However, they are ultimately incompatible: their mathematical structures and their conceptual bases are very different. A unifying theory of quantum gravity is necessary. However, the quantum gravity regime corresponds to very high energies, well beyond present reach.

An alternative approach is to study quantum effects at large scales where experiments promise to be within reach in the near future. For example, it will be possible to test proposed modifications of quantum theory due to gravity, to probe gravitational fields generated by quantum sources, or to find whether entanglement is affected by acceleration or distance.

Furthermore, the incorporation of quantum information in relativistic physics provides novel insights into black hole physics, cosmology and many approaches to quantum gravity.

RQI research is a multi-disciplinary field as it combines concepts and methods from general and special relativity, quantum and atom optics, quantum information theory, quantum gravity and quantum foundations. Its domain ranges from foundational physics, to cutting-edge experiments that test the limits of present fundamental theories and to applications of quantum and space technologies.