A conceptually simple platform for exploring quantum many-body states of photons
TITLE: Quantum many-body physics of photons in waveguide QED
SPEAKER: Dr Sahand Mahmoodian
AFFILIATION: Institute for Theoretical Physics, Institute for Gravitational Physics (Albert Einstein Institute), Leibniz University, Hannover, Germany
HOSTED BY: A/Prof Nathan Langford, UTS Centre for Quantum Software and Information
ABSTRACT:
The generation and control of strongly interacting photons is a long-standing goal of quantum optics. In recent years, remarkable experiments with cavity QED platforms, strongly interacting Rydberg atoms, and circuit QED have demonstrated photon-photon interactions at the few-body level. In this talk I show that a conceptually simple platform of two-level atoms ideally coupled to a chiral photonic mode forms an exciting system for exploring the many-body physics of photons. Here, a class of bound photon eigenstates hold the key to understanding the dynamics of this system at the few- and many-body scale. I will show that one can use these states to describe the entire spectrum from few-photon quantum propagation, to genuine quantum many-body (atom and photon) phenomena, and ultimately the quantum-to-classical transition.
RELATED PAPERS
Dynamics of Many-Body Photon Bound
States in Chiral Waveguide QED
PRX 10, 031011 (2020)
https://journals.aps.org/prx/abstract/10.1103/PhysRevX.10.031011
OTHER LINKS:
Max Planck Institute for Gravitational Physics
https://www.aei.mpg.de/
UTS Centre for Quantum Software and Information: https://www.uts.edu.au/research-and-teaching/our-research/centre-quantum-software-and-information
Nathan Langford: https://www.uts.edu.au/staff/nathan.langford
