QuantERA Call 2017 Funded Projects

Controlling EPR and Bell correlations in Bose-Einstein condensates

We bring together researchers on quantum information theory, Bose-Einstein condensates and atom interferometry to create, detect and exploit Einstein-Podolsky-Rosen and Bell entanglement in atomic Bose-Einstein condensates. These represent much stronger forms of entanglement than the non-classical correlations created so far and are largely unexplored.

CMOS Compatible Single Photon Sources based on SiGe Quantum Dots

The efficient generation of quantum states of light is a vital task in Quantum Photonics. Current approaches are bulky and expensive with low generation rates and the few commercial single photon sources are either not compatible with telecoms standards, require cryogenic temperatures or are bulky benchtop devices.

Entangled Rydberg matter for quantum sensing and simulations

Owed to their remarkable properties trapped Rydberg atoms and ions are ideal systems for realizing quantum simulators and sensors. The strong and long-ranged dipolar interactions between Rydberg matter is the basis for entangling gates. The long lifetime of circular Rydberg states leads to long coherence times, enabling gates with high fidelity and quantum simulation over long times. Large transition dipole moments make Rydberg atoms and ions highly sensitive to electric fields, microwave and terahertz radiation.

High dimensional quantum Photonic Platform

Today, photonics is among the very few platforms that can reach very high levels of complexity in quantum communication, computation and sensing. This is made possible by the mobility of photons and the large variety of their controllable degrees of freedom. The quantum optics community has already obtained spectacular achievements, yet using quite inefficient sources and bulk optics, limiting the number of particles involved, the explored Hilbert space dimension and the fidelity of the protocols.

Hyper-entanglement from ultra-bright photon pair sources

We will fabricate and exploit an entirely novel photonic device platform for the generation of highly indistinguishable and entangled photon pairs with near-unity extraction efficiency.

Polariton lattices: a solid-state platform for quantum simulations of correlated and topological states

The development of quantum simulation lacks compact on-chip scalable platforms. The recent demonstrations of polariton lattices in semiconductor microcavities, in combination with their extraordinary nonlinearities, place polaritons as one of the most promising candidates to achieve this goal. The aim of this proposal is to implement polariton lattices in semiconductor microcavities as a photonic-based solid-state platform for quantum simulations.

MICROwave quantum SENSing with diamond color centers

Detection and spectroscopy of weak microwave (>GHz) signals is of pivotal importance for key areas of modern technology, including wireless communication, radar, navigation and medical imaging. Solid state spins could be attractive sensors for both tasks since they have transition frequencies that can be tuned across the 1-100 GHz range. However high-frequency sensing by solid state spins has remained underexplored so far, and most demonstrations of spin sensing have focused on low-frequency (<10MHz) signals.

Spin-based nanolytics – Turning today’s quantum technology research frontier into tomorrow’s diagnostic devices

Thanks to their unmatched specificity, nuclear magnetic resonance (NMR) and electron spin resonance (ESR) spectroscopy – jointly referred to as spin-based analytics – are tools of major importance in biology, chemistry, medicine and physics because they allow for the use of a spin (nuclear or electron) as an extremely sensitive, nanoscopic quantum probe of its electronic and magnetic environment inside a molecule.