Robustness of exceptional-point-based sensors against parametric noise: the role of Hamiltonian and Liouvillian degeneracies
J Wiersig - Physical Review A, 2020 - APS
Recent experiments have demonstrated the feasibility of exploiting spectral singularities in
open quantum and wave systems, so-called exceptional points, for sensors with strongly …
open quantum and wave systems, so-called exceptional points, for sensors with strongly …
Quantum zeno and anti-zeno probes of noise correlations in photon polarization
We experimentally demonstrate, for the first time, noise diagnostics by repeated quantum
measurements, establishing the ability of a single photon subjected to random polarization …
measurements, establishing the ability of a single photon subjected to random polarization …
Experimental proof of quantum Zeno-assisted noise sensing
In the ideal quantum Zeno (QZ) effect, repeated quantum projective measurements can
freeze the coherent dynamics of a quantum system. However, in the weak QZ regime …
freeze the coherent dynamics of a quantum system. However, in the weak QZ regime …
Quantum state engineering by steering in the presence of errors
Quantum state engineering plays a vital role in various applications in the field of quantum
information. Different strategies, including drive-and-dissipation, adiabatic cooling, and …
information. Different strategies, including drive-and-dissipation, adiabatic cooling, and …
Noise-robust quantum sensing via optimal multi-probe spectroscopy
The dynamics of quantum systems are unavoidably influenced by their environment, but in
turn observing a quantum system (probe) can allow one to measure its environment …
turn observing a quantum system (probe) can allow one to measure its environment …
Nonequilibrium quantum-heat statistics under stochastic projective measurements
In this paper we aim at characterizing the effect of stochastic fluctuations on the distribution
of the energy exchanged by a quantum system with the external environment under …
of the energy exchanged by a quantum system with the external environment under …
[HTML][HTML] Noise sensing via stochastic quantum Zeno
The dynamics of any quantum system is unavoidably influenced by the external
environment. Thus, the observation of a quantum system (probe) can allow the measure of …
environment. Thus, the observation of a quantum system (probe) can allow the measure of …
Information theoretical limits for quantum optimal control solutions: error scaling of noisy control channels
Accurate manipulations of an open quantum system require a deep knowledge of its
controllability properties and the information content of the implemented control fields. By …
controllability properties and the information content of the implemented control fields. By …
Reconstructing quantum entropy production to probe irreversibility and correlations
One of the major goals of quantum thermodynamics is the characterization of irreversibility
and its consequences in quantum processes. Here, we discuss how entropy production …
and its consequences in quantum processes. Here, we discuss how entropy production …
Maximizing information obtainable by quantum sensors through the quantum Zeno effect
B Ronchi, A Zwick, GA Álvarez - Physical Review Applied, 2024 - APS
Efficient quantum sensing technologies rely on the precise control of quantum sensors,
particularly two-level systems or qubits, to optimize estimation processes. We here exploit …
particularly two-level systems or qubits, to optimize estimation processes. We here exploit …