A two-level quantum probe under pulsed control allows to reconstruct quantum state of dark systems that are inaccessible for direct control and measurements.
Periodic driving is crucial for both coherent quantum control and fundamental concepts in quantum dynamics. A Raman transition between Floquet synthetic levels in a weakly driven solid-state spin system is successfully observed, offering new possibilities to the communities of efficient quantum control and quantum simulation.
Quantum sensing pursues both unprecedented sensitivity and excellent spatial resolution. An new platform for all-electric nanoscale quantum sensing based on a carbon nanotube double quantum dot is designed, achieving sensitivities of single-molecule magnetic resonance spectroscopy and opening a route towards integrated on-chip quantum-sensing devices.
