Multiparameter critical quantum metrology with impurity probes - IOPscience Skip to content
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Quantum probes, such as single-and two-qubit probes, can accurately measure the
temperature of a bosonic bath. The current investigation assesses the precision of the …

We characterise the measurement sensitivity, quantified by the quantum Fisher information
(QFI), of a single-fermionic thermometric probe strongly coupled to the sample of interest, a …

We investigate the temperature uncertainty relation in the nonequilibrium probe-based
temperature estimation process. We demonstrate that it is the fluctuation of heat that …

Temperature estimation plays a vital role across natural sciences. A standard approach is
provided by probe thermometry, where a probe is brought into contact with the sample and …

We extend and benchmark the recently developed Effective-Hamiltonian (EFFH) method
[PRX Quantum 4, 020307 (2023) 2691-3399 10.1103/PRXQuantum. 4.020307] as an …

We introduce prethermal temperature probes for sensitive, fast, and robust temperature
estimation. While equilibrium thermal probes with a manifold of quasidegenerate excited …

We theoretically investigate the pure dephasing dynamics of two static impurity qubits
embedded within a common environment of ultracold fermionic atoms, which are confined to …

The effective frequency of a mechanical resonator can be tuned via the spring effect induced
by quadratic optomechanical (QOM) coupling, and both spontaneous symmetry breaking …

An optimal local quantum thermometer is a quantum many-body system that saturates the
fundamental lower bound for the thermal state temperature estimation accuracy [L. Correa …