Recovering an unknown Hamiltonian from measurements is an increasingly important task
for certification of noisy quantum devices and simulators. Recent works have succeeded in …

Efforts to scale-up quantum computation have reached a point where the principal limiting
factor is not the number of qubits, but the entangling gate infidelity. However, the highly …

The efficient validation of quantum devices is critical for emerging technological
applications. In a wide class of use cases the precise engineering of a Hamiltonian is …

Charged microparticles confined in electrodynamic traps evolve into strongly coupled
Coulomb systems (SCCS) which are the subject of current investigation. Recent results with …

Multiplexed operations and extended coherent control over multiple trapping sites are
fundamental requirements for a trapped-ion processor in a large scale architecture. Here we …

Recent works have shown that generic local Hamiltonians can be efficiently inferred from
local measurements performed on their eigenstates or thermal states. Realistic quantum …

We develop and demonstrate a new protocol that allows sensing of magnetic fields in an
extra-ordinary regime for atomic magnetometry. Until now, the demonstrated bandwidth for …

Precision measurements of frequency are critical to accurate time keeping and are
fundamentally limited by quantum measurement uncertainties. While for time-independent …

We demonstrate the simultaneous estimation of signal frequency and amplitude by a single
quantum sensor in a single experimental shot. Sweeping the qubit splitting linearly across a …

The physics of Markovian open quantum systems can be described by quantum master
equations. These are dynamical equations that incorporate the Hamiltonian and jump …