3 papers
quant-ph2026
Quantum Many-Body Metrology of Rotation Sensing with Strong Interactions
Yong-Jun Baak, Uwe R. Fischer
We study the ultimate quantum limit of rotation sensing with a few strongly interacting bosons confined in a quasi-one-dimensional ring trap with two weak links. It is demonstrated…
quant-ph2026
Restoring Heisenberg scaling in time via autonomous quantum error correction
Hyukgun Kwon, Uwe R. Fischer, Seung-Woo Lee +1
We establish a sufficient condition under which autonomous quantum error correction (AutoQEC) can effectively restore Heisenberg scaling (HS) in quantum metrology. Specifically, we…
quant-ph2024
Transition probabilities for a Rydberg atom in the field of a gravitational wave
Uwe R. Fischer
The possibility of an atomic detection of gravitational waves on earth is considered. The combination of extremely high lifetimes and resulting small radiative transition probabili…