Quantum sensing
Part of spectral quantum engineering set-up, Photo: Tomas Svensson
Slow light crystal, Photo: Adam Kinos

Research in quantum sensing

Quantum sensing is a very wide research field, comprising many different types of sensors for a large number of application areas. Within WACQT, we do research within a number of different areas, see list of the projects below.
For a general introduction to quantum sensing, please go to Quantum sensing.

Coordinators of efforts in quantum sensing:
Stefan Kröll, stefan.kroll@fysik.lth.se​, +46 46 222 96 26 
Katia Gallo, gallo@kth.se, +46 76 517 33 15
Markus Hennrich, markus.hennrich@fysik.su.se​, +46 8 553 786 14

Research projects in quantum sensing

Mechanical resonators for quantum-enhanced sensing 
The project explores two vastly different chip-based platforms with the goal to explore new regimes of displacement sensing of mechanical resonators, down to the quantum regime.
Principal investigator: Witlef Wieczorek, Chalmers
Postdoc: Mattias Rudolph, Chalmers 

Circuit quantum electrodynamics with epitaxially defined quantum dots 
The objective is to develop semi-conductor quantum dot systems where the interactions between spin, charge, photons and phonons can be engineered to construct hybrid quantum sensors and single-photon micro-wave detection capabilities.
Principal investigator: Ville Maisi, Lund University 
Postdoc: Waqar Khan, Lund University

Development of instruments for deep tissue clinical imaging with molecular specificity 
The project investigates how quantum structures that reduce the speed of light to a few tens of km/s can be used for enabling optical imaging deep inside the human body.
Principal investigators: Johannes Swartling, SpectraCure AB and Stefan Kröll, Lund University
Industrial PhD student: David Hill, SpectraCure/Lund University

Quantum sensing with trapped Rydberg ions
The project studies trapped Rydberg ions for very sensitive electric and microwave field detection. Entangled Rydberg ion states have the potential to further enhance the measurement sensitivity.
Principal investigator: Markus Hennrich, Stockholm University
PhD student: Harry Parke, Stockholm University

Ultrafast quantum optics – extending quantum control towards the femto- and attosecond time scales
The aim of this project is to develop techniques for quantum control down to the extreme ultraviolet wavelength region and on the sub-femtosecond timescale using pulses generated by high-order harmonic generation or free electron lasers. The pulses will then be used to produce entangled two-electron wave packets.
Principal investigators: Johan Mauritsson and Anne L’Huillier, Lund University
PhD student: Anna Olofsson, Lund University

Cavity QED to image otherwise dark single molecules
The project aims at building a microscope able to detect dark transitions in molecules by micro-cavity Purcell enhancement. 
Principal investigators: Ivan Scheblykin and Andreas Walther, Lund University
PhD student: Safi Rafie-Zinedine, Lund University

Published: Mon 22 Jun 2020.