Quantum 2020

Dynamics and local control of impurities in complex quantum environments

Techniques addressing individual particles (impurities) embedded in quantum many body environments of varying nature. Examples include static and mobile impurities in ultracold atomic and molecular gases, impurity atoms and molecules in superfluids, individual atoms in cavity QED, Kondo-like and central spin states in solid-state devices. With exquisite resolution approaching the quantum limit it is now possible to exert local control on the quantum state of a single impurity particle, switching between the impurity’s states in ultra-fast regime. Local structure of the entangled state formed between the impurity and the surrounding medium can be mapped with outstanding spatial resolution. Time-resolved measurements enable using impurities for probing out-of-equilibrium quantum many-body dynamics, quantum diffusion and drag, quenches, and Floquet evolution. One can identify four loosely overlapping communities where work related to the quantum impurity problem is currently underway. Those are in the areas of quantum solid state devices, quantum optics, ultracold atomic systems, and physical chemistry. 
The aim of the proposed workshop is to bring together specialists representing these different streams of research in order to facilitate exchange of results and
ideas based on the unifying topic of quantum impurity problems. The ultimate goal is to aggregate a unique body of usually non-overlapping expertise around one
central topic in order to create favourable conditions for breakthroughs in physics and engineering of quantum devices at the nano-scale.

  • Workshop organizers:

– Vadim Cheianov (Leiden University, Netherlands)
– Mikhail Lemeshko (Institute of Science and Technology, Austria)
– Hanns-Christoph Nägerl (Innsbruck University, Austria)
– Mikhail Zvonarev (LPTMS, France)

  • Workshop duration: The 24th of August to 18th of September 2020
  • Workshop participants: about 60; confirmed:

G. Astrakharchick (UPC, Spain), G.
Bruun (Aarhus Univ., Denmark), J.-S. Caux (Amsterdam Univ., Netherlands), F. Chevy (LKB, France), C. Ciuti (LMPQ, France), E. Demler (Harvard Univ., USA), D. Gangardt (Birmingham Univ., UK), T. Giamarchi (Geneva Univ., Switzerland), R. Grimm (Innsbruck Univ., Austria), F. Essler (Oxford Univ., UK), L. Fritz (ITP Utrecht, Netherlands), A. Imamoglu (ETH, Switzerland), K. van Houcke (ENS, France), M. Katsnelson (Radboud Univ., Netherlands), M. Knap (TUM, Germany), A. Minguzzi (LPMMC, France), Y. Paltiel (Hebrew U Jerusalem, Israel), A. Polkovnikov (Boston Univ., USA), T. Pfau (Stuttgart Univ., Germany), D. Petrov (LPTMS, France), P.-N. Roy (Waterloo Univ., Canada), G. Roux (LPTMS, France), M. Schiro (IPHT, France), V. Vuletic (MIT, USA), E. Yuzbashyan (Rutgers Univ., USA), F. Werner (LKB, France)

To register for this program, please click here

For further information, please email: mikhail.zvonarev@u-psud.fr