3 papers
quant-ph2026
Extracting information from a superradiant burst using simple measurements
Federico Belliardo, Anjun Chu, Martin Koppenhöfer +1
It is well known that superradiant decay of an ensemble of spins generates a complex non-classical state of light. Here, we consider the information content of a superradiant b…
quant-ph2026
Random layers for quantum optimal control with exponential expressivity
Marco Dall'Ara, Martin Koppenhöfer, Florentin Reiter +3
A long-standing problem in quantum optimal control is finding an optimal pulse structure that leads to an efficient exploration of the unitary space with a minimal number of optimi…
quant-ph2026
Detecting quantum noise of a solid-state spin ensemble with dispersive measurement
Mikhail Mamaev, Jayameenakshi Venkatraman, Martin Koppenhöfer +2
We theoretically explore protocols for measuring the spin polarization of an ensemble of solid-state spins, with precision at or below the standard quantum limit. Such measurements…